Tag Archive for: Cyber

Task Force Seeks to Disrupt Ransomware Payments

Some of the world’s top tech firms are backing a new industry task force focused on disrupting cybercriminal ransomware gangs by limiting their ability to get paid, and targeting the individuals and finances of the organized thieves behind these crimes.

In a 81-page report delivered to the Biden administration this week, top executives from Amazon, Cisco, FireEye, McAfee, Microsoft and dozens of other firms joined the U.S. Department of Justice (DOJ), Europol and the U.K. National Crime Agency in calling for an international coalition to combat ransomware criminals, and for a global network of ransomware investigation hubs.

The Ransomware Task Force urged the White House to make finding, frustrating and apprehending ransomware crooks a priority within the U.S. intelligence community, and to designate the current scourge of digital extortion as a national security threat.

The Wall Street Journal recently broke the news that the DOJ was forming its own task force to deal with the “root causes” of ransomware. An internal DOJ memo reportedly “calls for developing a strategy that targets the entire criminal ecosystem around ransomware, including prosecutions, disruptions of ongoing attacks and curbs on services that support the attacks, such as online forums that advertise the sale of ransomware or hosting services that facilitate ransomware campaigns.”

According to security firm Emsisoft, almost 2,400 U.S.-based governments, healthcare facilities and schools were victims of ransomware in 2020.

“The costs of ransomware go far beyond the ransom payments themselves,” the task force report observes. “Cybercrime is typically seen as a white-collar crime, but while ransomware is profit-driven and ‘non-violent’ in the traditional sense, that has not stopped ransomware attackers from routinely imperiling lives.”

A proposed framework for a public-private operational ransomware campaign. Image: IST.

It is difficult to gauge the true cost and size of the ransomware problem because many victims never come forward to report the crimes. As such, a number of the task force’s recommendations focus on ways to encourage more victims to report the crimes to their national authorities, such as requiring victims and incident response firms who pay a ransomware demand to report the matter to law enforcement and possibly regulators at the U.S. Treasury Department.

Last year, Treasury issued a controversial memo warning that ransomware victims who end up sending digital payments to people already being sanctioned by the U.S. government for money laundering and other illegal activities could result in hefty fines.

Philip Reiner, CEO of the Institute for Security and Technology and executive director of the industry task force, said the reporting recommendations are one of several areas where federal agencies will likely need to dedicate more employees. For example, he said, expecting victims to clear ransomware payments with the Treasury Department first assumes the agency has the staff to respond in any kind of timeframe that might be useful for a victim undergoing a ransomware attack.

“That’s why we were so dead set in putting forward comprehensive framework,” Reiner said. “That way, Department of Homeland Security can do what they need to do, the State Department, Treasury gets involved, and it all needs to be synchronized for going after the bad guys with the same alacrity.”

Some have argued that making it illegal to pay a ransom is one way to decrease the number of victims who acquiesce to their tormentors’ demands. But the task force report says we’re nowhere near ready for that yet.

“Ransomware attackers require little risk or effort to launch attacks, so a prohibition on ransom payments would not necessarily lead them to move into other areas,” the report observes. “Rather, they would likely continue to mount attacks and test the resolve of both victim organizations and their regulatory authorities. To apply additional pressure, they would target organizations considered more essential to society, such as healthcare providers, local governments, and other custodians of critical infrastructure.”

“As such, any intent to prohibit payments must first consider how to build organizational cybersecurity maturity, and how to provide an appropriate backstop to enable organizations to weather the initial period of extreme testing,” the authors concluded in the report. “Ideally, such an approach would also be coordinated internationally to avoid giving ransomware attackers other avenues to pursue.”

The task force’s report comes as federal agencies have been under increased pressure to respond to a series of ransomware attacks that were mass-deployed as attackers began exploiting four zero-day vulnerabilities in Microsoft Exchange Server email products to install malicious backdoors. Earlier this month, the DOJ announced the FBI had conducted a first-of-its-kind operation to remove those backdoors from hundreds of Exchange servers at state and local government facilities.

Many of the recommendations in the Ransomware Task Force report are what you might expect, such as encouraging voluntary information sharing on ransomware attacks; launching public awareness campaigns on ransomware threats; exerting pressure on countries that operate as safe havens for ransomware operators; and incentivizing the adoption of security best practices through tax breaks.

A few of the more interesting recommendations (at least to me) included:

-Limit legal liability for ISPs that act in good faith trying to help clients secure their systems.

-Create a federal “cyber response and recovery fund” to help state and local governments or critical infrastructure companies respond to ransomware attacks.

-Require cryptocurrency exchanges to follow the same “know your customer” (KYC) and anti-money laundering rules as financial institutions, and aggressively targeting exchanges that do not.

-Have insurance companies measure and assert their aggregated ransomware losses and establish a common “war chest” subrogation fund “to evaluate and pursue strategies aimed at restitution, recovery, or civil asset seizures, on behalf of victims and in conjunction with law enforcement efforts.”

-Centralize expertise in cryptocurrency seizure, and scaling criminal seizure processes.

-Create a standard format for reporting ransomware incidents.

-Establish a ransomware incident response network.

Experian’s Credit Freeze Security is Still a Joke

In 2017, KrebsOnSecurity showed how easy it is for identity thieves to undo a consumer’s request to freeze their credit file at Experian, one of the big three consumer credit bureaus in the United States.  Last week, KrebsOnSecurity heard from a reader who had his freeze thawed without authorization through Experian’s website, and it reminded me of how truly broken authentication and security remains in the credit bureau space.

Experian’s page for retrieving someone’s credit freeze PIN requires little more information than has already been leaked by big-three bureau Equifax and a myriad other breaches.

Dune Thomas is a software engineer from Sacramento, Calif. who put a freeze on his credit files last year at Experian, Equifax and TransUnion after thieves tried to open multiple new payment accounts in his name using an address in Washington state that was tied to a vacant home for sale.

But the crooks were persistent: Earlier this month, someone unfroze Thomas’ account at Experian and promptly applied for new lines of credit in his name, again using the same Washington street address. Thomas said he only learned about the activity because he’d taken advantage of a free credit monitoring service offered by his credit card company.

Thomas said after several days on the phone with Experian, a company representative acknowledged that someone had used the “request your PIN” feature on Experian’s site to obtain his PIN and then unfreeze his file.

Thomas said he and a friend both walked through the process of recovering their freeze PIN at Experian, and were surprised to find that just one of the five multiple-guess questions they were asked after entering their address, Social Security Number and date of birth had anything to do with information only the credit bureau might know.

KrebsOnSecurity stepped through the same process and found similar results. The first question asked about a new mortgage I supposedly took out in 2019 (I didn’t), and the answer was none of the above. The answer to the second question also was none of the above.

The next two questions were useless for authentication purposes because they’d already been asked and answered; one was “which of the following is the last four digits of your SSN,” and the other was “I was born within a year or on the year of the date below.” Only one question mattered and was relevant to my credit history (it concerned the last four digits of a checking account number).

The best part about this lax authentication process is that one can enter any email address to retrieve the PIN — it doesn’t need to be tied to an existing account at Experian. Also, when the PIN is retrieved, Experian doesn’t bother notifying any other email addresses already on file for that consumer.

Finally, your basic consumer (read: free) account at Experian does not give users the option to enable any sort of multi-factor authentication that might help stymie some of these PIN retrieval attacks on credit freezes.

Unless, that is, you subscribe to Experian’s heavily-marketed and confusingly-worded “CreditLock” service, which charges between $14.99 and $24.99 a month for the ability to “lock and unlock your file easily and quickly, without delaying the application process.” CreditLock users can both enable multifactor authentication and get alerts when someone tries to access their account.

Thomas said he’s furious that Experian only provides added account security for consumers who pay for monthly plans.

“Experian had the ability to give people way better protection through added authentication of some kind, but instead they don’t because they can charge $25 a month for it,” Thomas said. “They’re allowing this huge security gap so they can make a profit. And this has been going on for at least four years.”

Experian has not yet responded to requests for comment.

When a consumer with a freeze logs in to Experian’s site, they are immediately directed to a message for one of Experian’s paid services, such as its CreditLock service. The message I saw upon logging in confirmed that while I had a freeze in place with Experian, my current “protection level” was “low” because my credit file was unlocked.

“When your file is unlocked, you’re more vulnerable to identity theft and fraud,” Experian warns, untruthfully. “You won’t see alerts if someone tries to access your file. Banks can check your file if you apply for credit or loans. Utility and service providers can see your credit file.”

Experian says my security is low because while I have a freeze in place, I haven’t bought into their questionable “lock service.”

Sounds scary, right? The thing is — except for the part about not seeing alerts — none of the above statement is true if you already have a freeze on your file. A security freeze essentially blocks any potential creditors from being able to view your credit file, unless you affirmatively unfreeze or thaw your file beforehand.

With a freeze in place on your credit file, ID thieves can apply for credit in your name all they want, but they will not succeed in getting new lines of credit in your name because few if any creditors will extend that credit without first being able to gauge how risky it is to loan to you (i.e., view your credit file). It is now free to freeze your credit in all U.S. states and territories.

Experian, like the other consumer credit bureaus, uses their intentionally confusing “lock” terminology to frighten consumers into paying for monthly subscription services. A key selling point for these lock services is they can be a faster way to let creditors peek at your file when you wish to apply for new credit. That may or may not be true in practice, but consider why it’s so important for Experian to get consumers to sign up for their lock programs.

The real reason is that Experian makes money every time someone makes a credit inquiry in your name, and it does not want to do anything to hinder those inquiries. Signing up for a lock service lets Experian continue selling credit report information to a variety of third parties. According to Experian’s FAQ, when locked your Experian credit file remains accessible to a host of companies, including:

-Potential employers or insurance companies

-Collection agencies acting on behalf of companies you may owe

-Companies providing pre-screened credit card offers

-Companies that have an existing credit relationship with you (this is true for frozen files also)

-Personalized offers from Experian, if you choose to receive them

It is annoying that Experian can get away with offering additional account security only to people who pay the company a hefty sum each month to sell their information. It’s also amazing that this sloppy security I wrote about back in 2017 is still just as prevalent in 2021.

But Experian is hardly alone. In 2019, I wrote about how Equifax’s new MyEquifax site made it simple for thieves to lift an existing credit freeze at Equifax and bypass the PIN if they were armed with just your name, Social Security number and birthday.

Also in 2019, identity thieves were able to get a copy of my credit report from TransUnion after successfully guessing the answers to multiple-guess questions like the ones Experian asks. I only found out after hearing from a detective in Washington state, who informed me that a copy of the report was found on a removable drive seized from a local man who was arrested on suspicion of being part of an ID theft gang.

TransUnion investigated and found it was indeed at fault for giving my credit report to ID thieves, but that on the bright side its systems blocked another fraudulent attempt at getting my report in 2020.

“In our investigation, we determined that a similar attempt to fraudulently obtain your report occurred in April 2020, and was successfully blocked by enhanced controls TransUnion has implemented since last year,” the company said. “TransUnion deploys a multi-layered security program to combat the ongoing and increasing threat of fraud, cyber-attacks and malicious activity.  In today’s dynamic threat environment, TransUnion is constantly enhancing and refining our controls to address the latest security threats, while still allowing consumers access to their information.”

For more information on credit freezes (also called a “security freezes”), how to request one, and other tips on preventing identity fraud, check out this story.

If you haven’t done so lately, it might be a good time to order a free copy of your credit report from annualcreditreport.com. This service entitles each consumer one free copy of their credit report annually from each of the three credit bureaus — either all at once or spread out over the year.

Note to Self: Create Non-Exhaustive List of Competitors

What was the best news you heard so far this month? Mine was learning that KrebsOnSecurity is listed as a restricted competitor by Gartner Inc. [NYSE:IT] — a $4 billion technology goliath whose analyst reports can move markets and shape the IT industry.

Earlier this month, a reader pointed my attention to the following notice from Gartner to clients who are seeking to promote Gartner reports about technology products and services:

What that notice says is that KrebsOnSecurity is somehow on Gartner’s “non exhaustive list of competitors,” i.e., online venues where technology companies are not allowed to promote Gartner reports about their products and services.

The bulk of Gartner’s revenue comes from subscription-based IT market research. As the largest organization dedicated to the analysis of software, Gartner’s network of analysts are well connected to the technology and software industries. Some have argued that Gartner is a kind of private social network, in that a significant portion of Gartner’s competitive position is based on its interaction with an extensive network of software vendors and buyers.

Either way, the company regularly serves as a virtual kingmaker with their trademark “Magic Quadrant” designations, which rate technology vendors and industries “based on proprietary qualitative data analysis methods to demonstrate market trends, such as direction, maturity and participants.”

The two main subjective criteria upon which Gartner bases those rankings are “the ability to execute” and “completeness of vision.” They also break companies out into categories such as “challengers,” “leaders,” “visionaries” and “niche players.”

Gartner’s 2020 “Magic Quadrant” for companies that provide “contact center as a service” offerings.

So when Gartner issues a public report forecasting that worldwide semiconductor revenue will fall, or that worldwide public cloud revenue will grow, those reports very often move markets.

Being listed by Gartner as a competitor has had no discernable financial impact on KrebsOnSecurity, or on its reporting. But I find this designation both flattering and remarkable given that this site seldom promotes technological solutions.

Nor have I ever offered paid consulting or custom market research (although I did give a paid keynote speech at Gartner’s 2015 conference in Orlando, which is still by far the largest crowd I’ve ever addressed).

Rather, KrebsOnSecurity has sought to spread cybersecurity awareness primarily by highlighting the “who” of cybercrime — stories told from the perspectives of both attackers and victims. What’s more, my research and content is available to everyone at the same time, and for free.

I rarely do market predictions (or prognostications of any kind), but in deference to Gartner allow me to posit a scenario in which major analyst firms start to become a less exclusive and perhaps less relevant voice as both an influencer and social network.

For years I have tried to corrupt more of my journalist colleagues into going it alone, noting that solo blogs and newsletters can not only provide a hefty boost from newsroom income, but they also can produce journalism that is just as timely, relevant and impactful.

Those enticements have mostly fallen on deaf ears. Recently, however, an increasing number of journalists from major publications have struck out on their own, some in reportorial roles, others as professional researchers and analysts in their own right.

If Gartner considers a one-man blogging operation as competition, I wonder what they’ll think of the coming collective output from an entire industry of newly emancipated reporters seeking more remuneration and freedom offered by independent publishing platforms like Substack, Patreon and Medium.

Oh, I doubt any group of independent journalists would seek to promulgate their own Non-Exclusive List of Competitors at Whom Thou Shalt Not Publish. But why should they? One’s ability to execute does not impair another’s completeness of vision, nor vice versa. According to Gartner, it takes all kinds, including visionaries, niche players, leaders and challengers.

Did Someone at the Commerce Dept. Find a SolarWinds Backdoor in Aug. 2020?

On Aug. 13, 2020, someone uploaded a suspected malicious file to VirusTotal, a service that scans submitted files against more than five dozen antivirus and security products. Last month, Microsoft and FireEye identified that file as a newly-discovered fourth malware backdoor used in the sprawling SolarWinds supply chain hack. An analysis of the malicious file and other submissions by the same VirusTotal user suggest the account that initially flagged the backdoor as suspicious belongs to IT personnel at the National Telecommunications and Information Administration (NTIA), a division of the U.S. Commerce Department that handles telecommunications and Internet policy.

Both Microsoft and FireEye published blog posts on Mar. 4 concerning a new backdoor found on high-value targets that were compromised by the SolarWinds attackers. FireEye refers to the backdoor as “Sunshuttle,” whereas Microsoft calls it “GoldMax.” FireEye says the Sunshuttle backdoor was named “Lexicon.exe,” and had the unique file signatures or “hashes” of “9466c865f7498a35e4e1a8f48ef1dffd” (MD5) and b9a2c986b6ad1eb4cfb0303baede906936fe96396f3cf490b0984a4798d741d8 (SHA-1).

“In August 2020, a U.S.-based entity uploaded a new backdoor that we have named SUNSHUTTLE to a public malware repository,” FireEye wrote.

The “Sunshuttle” or “GoldMax” backdoor, as identified by FireEye and Microsoft, respectively. Image: VirusTotal.com.

A search in VirusTotal’s malware repository shows that on Aug. 13, 2020 someone uploaded a file with that same name and file hashes. It’s often not hard to look through VirusTotal and find files submitted by specific users over time, and several of those submitted by the same user over nearly two years include messages and files sent to email addresses for people currently working in NTIA’s information technology department.

An apparently internal email that got uploaded to VirusTotal in Feb. 2020 by the same account that uploaded the Sunshuttle backdoor malware to VirusTotal in August 2020.

The NTIA did not respond to requests for comment. But in December 2020, The Wall Street Journal reported the NTIA was among multiple federal agencies that had email and files plundered by the SolarWinds attackers. “The hackers broke into about three dozen email accounts since June at the NTIA, including accounts belonging to the agency’s senior leadership, according to a U.S. official familiar with the matter,” The Journal wrote.

It’s unclear what, if anything, NTIA’s IT staff did in response to scanning the backdoor file back in Aug. 2020. But the world would not find out about the SolarWinds debacle until early December 2020, when FireEye first disclosed the extent of its own compromise from the SolarWinds malware and published details about the tools and techniques used by the perpetrators.

The SolarWinds attack involved malicious code being surreptitiously inserted into updates shipped by SolarWinds for some 18,000 users of its Orion network management software. Beginning in March 2020, the attackers then used the access afforded by the compromised SolarWinds software to push additional backdoors and tools to targets when they wanted deeper access to email and network communications.

U.S. intelligence agencies have attributed the SolarWinds hack to an arm of the Russian state intelligence known as the SVR, which also was determined to have been involved in the hacking of the Democratic National Committee six years ago. On Thursday, the White House issued long-expected sanctions against Russia in response to the SolarWinds attack and other malicious cyber activity, leveling economic sanctions against 32 entities and individuals for disinformation efforts and for carrying out the Russian government’s interference in the 2020 presidential election.

The U.S. Treasury Department (which also was hit with second-stage malware that let the SolarWinds attackers read Treasury email communications) has posted a full list of those targeted, including six Russian companies for providing support to the cyber activities of the Russian intelligence service.

Also on Thursday, the FBI, National Security Agency (NSA), and the Cybersecurity Infrastructure Security Administration (CISA) issued a joint advisory on several vulnerabilities in widely-used software products that the same Russian intelligence units have been attacking to further their exploits in the SolarWinds hack. Among those is CVE-2020-4006, a security hole in VMWare Workspace One Access that VMware patched in December 2020 after hearing about it from the NSA.

On December 18, VMWare saw its stock price dip 5.5 percent after KrebsOnSecurity published a report linking the flaw to NSA reports about the Russian cyberspies behind the SolarWinds attack. At the time, VMWare was saying it had received “no notification or indication that CVE-2020-4006 was used in conjunction with the SolarWinds supply chain compromise.” As a result, a number of readers responded that making this connection was tenuous, circumstantial and speculative.

But the joint advisory makes clear the VMWare flaw was in fact used by SolarWinds attackers to further their exploits.

“Recent Russian SVR activities include compromising SolarWinds Orion software updates, targeting COVID-19 research facilities through deploying WellMess malware, and leveraging a VMware vulnerability that was a zero-day at the time for follow-on Security Assertion Markup Language (SAML) authentication abuse,” the NSA’s advisory (PDF) reads. “SVR cyber actors also used authentication abuse tactics following SolarWinds-based breaches.”

Officials within the Biden administration have told media outlets that a portion of the United States’ response to the SolarWinds hack would not be discussed publicly. But some security experts are concerned that Russian intelligence officials may still have access to networks that ran the backdoored SolarWinds software, and that the Russians could use that access to affect a destructive or disruptive network response of their own, The New York Times reports.

“Inside American intelligence agencies, there have been warnings that the SolarWinds attack — which enabled the SVR to place ‘back doors’ in the computer networks — could give Russia a pathway for malicious activity against government agencies and corporations,” The Times observed.

Microsoft Patch Tuesday, April 2021 Edition

Microsoft today released updates to plug at least 110 security holes in its Windows operating systems and other products. The patches include four security fixes for Microsoft Exchange Server — the same systems that have been besieged by attacks on four separate (and zero-day) bugs in the email software over the past month. Redmond also patched a Windows flaw that is actively being exploited in the wild.

Nineteen of the vulnerabilities fixed this month earned Microsoft’s most-dire “Critical” label, meaning they could be used by malware or malcontents to seize remote control over vulnerable Windows systems without any help from users.

Microsoft released updates to fix four more flaws in Exchange Server versions 2013-2019 (CVE-2021-28480, CVE-2021-28481, CVE-2021-28482, CVE-2021-28483). Interestingly, all four were reported by the U.S. National Security Agency, although Microsoft says it also found two of the bugs internally. A Microsoft blog post published along with today’s patches urges Exchange Server users to make patching their systems a top priority.

Satnam Narang, staff research engineer at Tenable, said these vulnerabilities have been rated ‘Exploitation More Likely’ using Microsoft’s Exploitability Index.

“Two of the four vulnerabilities (CVE-2021-28480, CVE-2021-28481) are pre-authentication, meaning an attacker does not need to authenticate to the vulnerable Exchange server to exploit the flaw,” Narang said. “With the intense interest in Exchange Server since last month, it is crucial that organizations apply these Exchange Server patches immediately.”

Also patched today was a vulnerability in Windows (CVE-2021-28310) that’s being exploited in active attacks already. The flaw allows an attacker to elevate their privileges on a target system.

“This does mean that they will either need to log on to a system or trick a legitimate user into running the code on their behalf,” said Dustin Childs of Trend Micro. “Considering who is listed as discovering this bug, it is probably being used in malware. Bugs of this nature are typically combined with other bugs, such as browser bug of PDF exploit, to take over a system.”

In a technical writeup on what they’ve observed since finding and reporting attacks on CVE-2021-28310, researchers at Kaspersky Lab noted the exploit they saw was likely used together with other browser exploits to escape “sandbox” protections of the browser.

“Unfortunately, we weren’t able to capture a full chain, so we don’t know if the exploit is used with another browser zero-day, or coupled with known, patched vulnerabilities,” Kaspersky’s researchers wrote.

Allan Laska, senior security architect at Recorded Future, notes that there are several remote code execution vulnerabilities in Microsoft Office products released this month as well. CVE-2021-28454 and CVE-2021-28451 involve Excel, while CVE-2021-28453 is in Microsoft Word and CVE-2021-28449 is in Microsoft Office. All four vulnerabilities are labeled by Microsoft as “Important” (not quite as bad as “Critical”). These vulnerabilities impact all versions of their respective products, including Office 365.

Other Microsoft products that got security updates this month include Edge (Chromium-based), Azure and Azure DevOps Server, SharePoint Server, Hyper-V, Team Foundation Server, and Visual Studio.

Separately, Adobe has released security updates for Photoshop, Digital Editions, RoboHelp, and Bridge.

It’s a good idea for Windows users to get in the habit of updating at least once a month, but for regular users (read: not enterprises) it’s usually safe to wait a few days until after the patches are released, so that Microsoft has time to iron out any kinks in the new armor.

But before you update, please make sure you have backed up your system and/or important files. It’s not uncommon for a Windows update package to hose one’s system or prevent it from booting properly, and some updates have been known to erase or corrupt files.

So do yourself a favor and backup before installing any patches. Windows 10 even has some built-in tools to help you do that, either on a per-file/folder basis or by making a complete and bootable copy of your hard drive all at once.

And if you wish to ensure Windows has been set to pause updating so you can back up your files and/or system before the operating system decides to reboot and install patches on its own schedule, see this guide.

As always, if you experience glitches or problems installing any of these patches this month, please consider leaving a comment about it below; there’s a better-than-even chance other readers have experienced the same and may chime in here with some helpful tips.

ParkMobile Breach Exposes License Plate Data, Mobile Numbers of 21M Users

Someone is selling account information for 21 million customers of ParkMobile, a mobile parking app that’s popular in North America. The stolen data includes customer email addresses, dates of birth, phone numbers, license plate numbers, hashed passwords and mailing addresses.

KrebsOnSecurity first heard about the breach from Gemini Advisory, a New York City based threat intelligence firm that keeps a close eye on the cybercrime forums. Gemini shared a new sales thread on a Russian-language crime forum that included my ParkMobile account information in the accompanying screenshot of the stolen data.

Included in the data were my email address and phone number, as well as license plate numbers for four different vehicles we have used over the past decade.

Asked about the sales thread, Atlanta-based ParkMobile said the company published a notification on Mar. 26 about “a cybersecurity incident linked to a vulnerability in a third-party software that we use.”

“In response, we immediately launched an investigation with the assistance of a leading cybersecurity firm to address the incident,” the notice reads. “Out of an abundance of caution, we have also notified the appropriate law enforcement authorities. The investigation is ongoing, and we are limited in the details we can provide at this time.”

The statement continues: “Our investigation indicates that no sensitive data or Payment Card Information, which we encrypt, was affected. Meanwhile, we have taken additional precautionary steps since learning of the incident, including eliminating the third-party vulnerability, maintaining our security, and continuing to monitor our systems.”

Asked for clarification on what the attackers did access, ParkMobile confirmed it included basic account information – license plate numbers, and if provided, email addresses and/or phone numbers, and vehicle nickname.

“In a small percentage of cases, there may be mailing addresses,” spokesman Jeff Perkins said.

ParkMobile doesn’t store user passwords, but rather it stores the output of a fairly robust one-way password hashing algorithm called bcrypt, which is far more resource-intensive and expensive to crack than common alternatives like MD5. The database stolen from ParkMobile and put up for sale includes each user’s bcrypt hash.

“You are correct that bcrypt hashed and salted passwords were obtained,” Perkins said when asked about the screenshot in the database sales thread.

“Note, we do not keep the salt values in our system,” he said. “Additionally, the compromised data does not include parking history, location history, or any other sensitive information. We do not collect social security numbers or driver’s license numbers from our users.”

ParkMobile says it is finalizing an update to its support site confirming the conclusion of its investigation. But I wonder how many of its users were even aware of this security incident. The Mar. 26 security notice does not appear to be linked to other portions of the ParkMobile site, and it is absent from the company’s list of recent press releases.

It’s also curious that ParkMobile hasn’t asked or forced its users to change their passwords as a precautionary measure. I used the ParkMobile app to reset my password, but there was no messaging in the app that suggested this was a timely thing to do.

So if you’re a ParkMobile user, changing your account password might be a pro move. If it’s any consolation, whoever is selling this data is doing so for an insanely high starting price ($125,000) that is unlikely to be paid by any cybercriminal to a new user with no reputation on the forum.

More importantly, if you used your ParkMobile password at any other site tied to the same email address, it’s time to change those credentials as well (and stop re-using passwords).

The breach comes at a tricky time for ParkMobile. On March 9, the European parking group EasyPark announced its plans to acquire the company, which operates in more than 450 cities in North America.

Are You One of the 533M People Who Got Facebooked?

Ne’er-do-wells leaked personal data — including phone numbers — for some 553 million Facebook users this week. Facebook says the data was collected before 2020 when it changed things to prevent such information from being scraped from profiles. To my mind, this just reinforces the need to remove mobile phone numbers from all of your online accounts wherever feasible. Meanwhile, if you’re a Facebook product user and want to learn if your data was leaked, there are easy ways to find out.

The HaveIBeenPwned project, which collects and analyzes hundreds of database dumps containing information about billions of leaked accounts, has incorporated the data into his service. Facebook users can enter the mobile number (in international format) associated with their account and see if those digits were exposed in the new data dump (HIBP doesn’t show you any data, just gives you a yes/no on whether your data shows up).

The phone number associated with my late Facebook account (which I deleted in Jan. 2020) was not in HaveIBeenPwned, but then again Facebook claims to have more than 2.7 billion active monthly users.

It appears much of this database has been kicking around the cybercrime underground in one form or another since last summer at least. According to a Jan. 14, 2021 Twitter post from Under the Breach’s Alon Gal, the 533 million Facebook accounts database was first put up for sale back in June 2020, offering Facebook profile data from 100 countries, including name, mobile number, gender, occupation, city, country, and marital status.

Under The Breach also said back in January that someone had created a Telegram bot allowing users to query the database for a low fee, and enabling people to find the phone numbers linked to a large number of Facebook accounts.

A cybercrime forum ad from June 2020 selling a database of 533 Million Facebook users. Image: @UnderTheBreach

Many people may not consider their mobile phone number to be private information, but there is a world of misery that bad guys, stalkers and creeps can visit on your life just by knowing your mobile number. Sure they could call you and harass you that way, but more likely they will see how many of your other accounts — at major email providers and social networking sites like Facebook, Twitter, Instagram, e.g. — rely on that number for password resets.

From there, the target is primed for a SIM-swapping attack, where thieves trick or bribe employees at mobile phone stores into transferring ownership of the target’s phone number to a mobile device controlled by the attackers. From there, the bad guys can reset the password of any account to which that mobile number is tied, and of course intercept any one-time tokens sent to that number for the purposes of multi-factor authentication.

Or the attackers take advantage of some other privacy and security wrinkle in the way SMS text messages are handled. Last month, a security researcher showed how easy it was to abuse services aimed at helping celebrities manage their social media profiles to intercept SMS messages for any mobile user. That weakness has supposedly been patched for all the major wireless carriers now, but it really makes you question the ongoing sanity of relying on the Internet equivalent of postcards (SMS) to securely handle quite sensitive information.

My advice has long been to remove phone numbers from your online accounts wherever you can, and avoid selecting SMS or phone calls for second factor or one-time codes. Phone numbers were never designed to be identity documents, but that’s effectively what they’ve become. It’s time we stopped letting everyone treat them that way.

Any online accounts that you value should be secured with a unique and strong password, as well as the most robust form of multi-factor authentication available. Usually, this is a mobile app like Authy or Google Authenticator that generates a one-time code. Some sites like Twitter and Facebook now support even more robust options — such as physical security keys.

Removing your phone number may be even more important for any email accounts you may have. Sign up with any service online, and it will almost certainly require you to supply an email address. In nearly all cases, the person who is in control of that address can reset the password of any associated services or accounts– merely by requesting a password reset email.

Unfortunately, many email providers still let users reset their account passwords by having a link sent via text to the phone number on file for the account. So remove the phone number as a backup for your email account, and ensure a more robust second factor is selected for all available account recovery options.

Here’s the thing: Most online services require users to supply a mobile phone number when setting up the account, but do not require the number to remain associated with the account after it is established. I advise readers to remove their phone numbers from accounts wherever possible, and to take advantage of a mobile app to generate any one-time codes for multifactor authentication.

Why did KrebsOnSecurity delete its Facebook account early last year? Sure, it might had something to do with the incessant stream of breaches, leaks and privacy betrayals by Facebook over the years. But what really bothered me were the number of people who felt comfortable sharing extraordinarily sensitive information with me on things like Facebook Messenger, all the while expecting that I can vouch for the privacy and security of that message just by virtue of my presence on the platform.

In case readers want to get in touch for any reason, my email here is krebsonsecurity at gmail dot com, or krebsonsecurity at protonmail.com. I also respond at Krebswickr on the encrypted messaging platform Wickr.

Ransom Gangs Emailing Victim Customers for Leverage

Some of the top ransomware gangs are deploying a new pressure tactic to push more victim organizations into paying an extortion demand: Emailing the victim’s customers and partners directly, warning that their data will be leaked to the dark web unless they can convince the victim firm to pay up.

This letter is from the Clop ransomware gang, putting pressure on a recent victim named on Clop’s dark web shaming site.

“Good day! If you received this letter, you are a customer, buyer, partner or employee of [victim],” the missive reads. “The company has been hacked, data has been stolen and will soon be released as the company refuses to protect its peoples’ data.”

“We inform you that information about you will be published on the darknet [link to dark web victim shaming page] if the company does not contact us,” the message concludes. “Call or write to this store and ask to protect your privacy!!!!”

The message above was sent to a customer of RaceTrac Petroleum, an Atlanta company that operates more than 650 retail gasoline convenience stores in 12 southeastern states. The person who shared that screenshot above isn’t a distributor or partner of RaceTrac, but they said they are a RaceTrac rewards member, so the company definitely has their email address and other information.

Several gigabytes of the company’s files — including employee tax and financial records — have been posted to the victim shaming site for the Clop ransomware gang.

In response to questions from KrebsOnSecurity, RaceTrac said it was recently impacted by a security incident affecting one of its third-party service providers, Accellion Inc.

For the past few months, attackers have been exploiting a a zero-day vulnerability in Accellion File Transfer Appliance (FTA) software, a flaw that has been seized upon by Clop to break into dozens of other major companies like oil giant Shell and security firm Qualys.

“By exploiting a previously undetected software vulnerability, unauthorized parties were able to access a subset of RaceTrac data stored in the Accellion File Transfer Service, including email addresses and first names of some of our RaceTrac Rewards Loyalty users,” the company wrote. “This incident was limited to the aforementioned Accellion services and did not impact RaceTrac’s corporate network. The systems used for processing guest credit, debit and RaceTrac Rewards transactions were not impacted.”

The same extortion pressure email has been going out to people associated with the University of California, which was one of several large U.S. universities that got hit with Clop ransomware recently. Most of those university ransomware incidents appeared to be tied to attacks on attacks on the same Accellion vulnerability, and the company has acknowledged roughly a third of its customers on that appliance got compromised as a result.

Clop is one of several ransom gangs that will demand two ransoms: One for a digital key needed to unlock computers and data from file encryption, and a second to avoid having stolen data published or sold online. That means even victims who opt not to pay to get their files and servers back still have to decide whether to pay the second ransom to protect the privacy of their customers.

As I noted in Why Paying to Delete Stolen Data is Bonkers, leaving aside the notion that victims might have any real expectation the attackers will actually destroy the stolen data, new research suggests a fair number of victims who do pay up may see some or all of the stolen data published anyway.

The email in the screenshot above differs slightly from those covered last week by Bleeping Computer, which was the first to spot the new victim notification wrinkle. Those emails say that the recipient is being contacted as they are a customer of the store, and their personal data, including phone numbers, email addresses, and credit card information, will soon be published if the store does not pay a ransom, writes Lawrence Abrams.

“Perhaps you bought something there and left your personal data. Such as phone, email, address, credit card information and social security number,” the Clop gang states in the email.

Fabian Wosar, chief technology officer at computer security firm Emsisoft, said the direct appeals to victim customers is a natural extension of other advertising efforts by the ransomware gangs, which recently included using hacked Facebook accounts to post victim shaming advertisements.

Wosar said Clop isn’t the only ransomware gang emailing victim customers.

“Clop likes to do it and I think REvil started as well,” Wosar said.

Earlier this month, Bleeping Computer reported that the REvil ransomware operation was planning on launching crippling distributed denial of service (DDoS) attacks against victims, or making VOIP calls to victims’ customers to apply further pressure.

“Sadly, regardless of whether a ransom is paid, consumers whose data has been stolen are still at risk as there is no way of knowing if ransomware gangs delete the data as they promise,” Abrams wrote.

Ubiquiti All But Confirms Breach Response Iniquity

For four days this past week, Internet-of-Things giant Ubiquiti did not respond to requests for comment on a whistleblower’s allegations the company had massively downplayed a “catastrophic” two-month breach ending in January to save its stock price, and that Ubiquiti’s insinuation that a third-party was to blame was a fabrication. I was happy to add their eventual public response to the top of Tuesday’s story on the whistleblower’s claims, but their statement deserves a post of its own because it actually confirms and reinforces those claims.

Ubiquiti’s IoT gear includes things like WiFi routers, security cameras, and network video recorders. Their products have long been popular with security nerds and DIY types because they make it easy for users to build their own internal IoT networks without spending many thousands of dollars.

But some of that shine started to come off recently for Ubiquiti’s more security-conscious customers after the company began pushing everyone to use a unified authentication and access solution that makes it difficult to administer these devices without first authenticating to Ubiquiti’s cloud infrastructure.

All of a sudden, local-only networks were being connected to Ubiquiti’s cloud, giving rise to countless discussion threads on Ubiquiti’s user forums from customers upset over the potential for introducing new security risks.

And on Jan. 11, Ubiquiti gave weight to that angst: It told customers to reset their passwords and enable multifactor authentication, saying a breach involving a third-party cloud provider might have exposed user account data. Ubiquiti told customers they were “not currently aware of evidence of access to any databases that host user data, but we cannot be certain that user data has not been exposed.”

Ubiquiti’s notice on Jan. 12, 2021.

On Tuesday, KrebsOnSecurity reported that a source who participated in the response to the breach said Ubiquiti should have immediately invalidated all credentials because all of the company’s key administrator passwords had been compromised as well. The whistleblower also said Ubiquiti never kept any logs of who was accessing its databases.

The whistleblower, “Adam,” spoke on condition of anonymity for fear of reprisals from Ubiquiti. Adam said the place where those key administrator credentials were compromised — Ubiquiti’s presence on Amazon’s Web Services (AWS) cloud services — was in fact the “third party” blamed for the hack.

From Tuesday’s piece:

“In reality, Adam said, the attackers had gained administrative access to Ubiquiti’s servers at Amazon’s cloud service, which secures the underlying server hardware and software but requires the cloud tenant (client) to secure access to any data stored there.

“They were able to get cryptographic secrets for single sign-on cookies and remote access, full source code control contents, and signing keys exfiltration,” Adam said.

Adam says the attacker(s) had access to privileged credentials that were previously stored in the LastPass account of a Ubiquiti IT employee, and gained root administrator access to all Ubiquiti AWS accounts, including all S3 data buckets, all application logs, all databases, all user database credentials, and secrets required to forge single sign-on (SSO) cookies.

Such access could have allowed the intruders to remotely authenticate to countless Ubiquiti cloud-based devices around the world. According to its website, Ubiquiti has shipped more than 85 million devices that play a key role in networking infrastructure in over 200 countries and territories worldwide.

Ubiquiti finally responded on Mar. 31, in a post signed “Team UI” on the company’s community forum online.

“Nothing has changed with respect to our analysis of customer data and the security of our products since our notification on January 11. In response to this incident, we leveraged external incident response experts to conduct a thorough investigation to ensure the attacker was locked out of our systems.”

“These experts identified no evidence that customer information was accessed, or even targeted. The attacker, who unsuccessfully attempted to extort the company by threatening to release stolen source code and specific IT credentials, never claimed to have accessed any customer information. This, along with other evidence, is why we believe that customer data was not the target of, or otherwise accessed in connection with, the incident.”

Ubiquiti’s response this week on its user forum.

Ubiquiti also hinted it had an idea of who was behind the attack, saying it has “well-developed evidence that the perpetrator is an individual with intricate knowledge of our cloud infrastructure. As we are cooperating with law enforcement in an ongoing investigation, we cannot comment further.”

Ubiquiti’s statement largely confirmed the reporting here by not disputing any of the facts raised in the piece. And while it may seem that Ubiquiti is quibbling over whether data was in fact stolen, Adam said Ubiquiti can say there is no evidence that customer information was accessed because Ubiquiti failed to keep logs of who was accessing its databases.

“Ubiquiti had negligent logging (no access logging on databases) so it was unable to prove or disprove what they accessed, but the attacker targeted the credentials to the databases, and created Linux instances with networking connectivity to said databases,” Adam wrote in a whistleblower letter to European privacy regulators last month. “Legal overrode the repeated requests to force rotation of all customer credentials, and to revert any device access permission changes within the relevant period.”

It appears investors noticed the incongruity as well. Ubiquiti’s share price hardly blinked at the January breach disclosure. On the contrary, from Jan. 13 to Tuesday’s story its stock had soared from $243 to $370. By the end of trading day Mar. 30, UI had slipped to $349. By close of trading on Thursday (markets were closed Friday) the stock had fallen to $289.

New KrebsOnSecurity Mobile-Friendly Site

Dear Readers, this has been long overdue, but at last I give you a more responsive, mobile-friendly version of KrebsOnSecurity. We tried to keep the visual changes to a minimum and focus on a simple theme that presents information in a straightforward, easy-to-read format. Please bear with us over the next few days as we hunt down the gremlins in the gears.

We were shooting for responsive (fast) and uncluttered. Hopefully, we achieved that and this new design will render well in whatever device you use to view it. If something looks amiss, please don’t hesitate to drop a note in the comments below.

NB: KrebsOnSecurity has not changed any of its advertising practices: The handful of ads we run are still image-only creatives that are vetted by me and served in-house. If you’re blocking ads on this site, please consider adding an exception here. Thank you!