Fake Emergency Search Warrants Draw Scrutiny from Capitol Hill

March 31, 2022
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On Tuesday, KrebsOnSecurity warned that hackers increasingly are using compromised government and police department email accounts to obtain sensitive customer data from mobile providers, ISPs and social media companies. Today, one of the U.S. Senate’s most tech-savvy lawmakers said he was troubled by the report and is now asking technology companies and federal agencies for information about the frequency of such schemes.

At issue are forged “emergency data requests,” (EDRs) sent through hacked police or government agency email accounts. Tech companies usually require a search warrant or subpoena before providing customer or user data, but any police jurisdiction can use an EDR to request immediate access to data without a warrant, provided the law enforcement entity attests that the request is related to an urgent matter of life and death.

As Tuesday’s story showed, hackers have figured out there is no quick and easy way for a company that receives one of these EDRs to know whether it is legitimate. After all, there are roughly 18,000 distinct police organizations in the United States alone, and many thousands of government and police agencies worldwide.

Criminal hackers exploiting that ambiguity are enjoying remarkable success rates gaining access to the data they’re after, and some are now selling EDRs as a service to other crooks online.

This week’s piece included confirmation from social media platform Discord about a fraudulent EDR they recently processed. On Wednesday, Bloomberg published a story confirming that both Apple and Meta/Facebook have recently complied with fake EDRs.

Today, KrebsOnSecurity heard from Sen. Ron Wyden (D-Ore.), who said he was moved to action after reading this week’s coverage.

“Recent news reports have revealed an enormous threat to Americans’ safety and national security,” Wyden said in a statement provided to KrebsOnSecurity. “I’m particularly troubled by the prospect that forged emergency orders may be coming from compromised foreign law enforcement agencies, and then used to target vulnerable individuals.”

“I’m requesting information from tech companies and multiple federal agencies to learn more about how emergency data requests are being abused by hackers,” Wyden’s statement continues. “No one wants tech companies to refuse legitimate emergency requests when someone’s safety is at stake, but the current system has clear weaknesses that need to be addressed. Fraudulent government requests are a significant concern, which is why I’ve already authored legislation to stamp out forged warrants and subpoenas.” Continue reading →

Hackers Gaining Power of Subpoena Via Fake “Emergency Data Requests”

March 29, 2022
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There is a terrifying and highly effective “method” that criminal hackers are now using to harvest sensitive customer data from Internet service providers, phone companies and social media firms. It involves compromising email accounts and websites tied to police departments and government agencies, and then sending unauthorized demands for subscriber data while claiming the information being requested can’t wait for a court order because it relates to an urgent matter of life and death.

In the United States, when federal, state or local law enforcement agencies wish to obtain information about who owns an account at a social media firm, or what Internet addresses a specific cell phone account has used in the past, they must submit an official court-ordered warrant or subpoena.

Virtually all major technology companies serving large numbers of users online have departments that routinely review and process such requests, which are typically granted as long as the proper documents are provided and the request appears to come from an email address connected to an actual police department domain name.

But in certain circumstances — such as a case involving imminent harm or death — an investigating authority may make what’s known as an Emergency Data Request (EDR), which largely bypasses any official review and does not require the requestor to supply any court-approved documents.

It is now clear that some hackers have figured out there is no quick and easy way for a company that receives one of these EDRs to know whether it is legitimate. Using their illicit access to police email systems, the hackers will send a fake EDR along with an attestation that innocent people will likely suffer greatly or die unless the requested data is provided immediately.

In this scenario, the receiving company finds itself caught between two unsavory outcomes: Failing to immediately comply with an EDR — and potentially having someone’s blood on their hands — or possibly leaking a customer record to the wrong person.

“We have a legal process to compel production of documents, and we have a streamlined legal process for police to get information from ISPs and other providers,” said Mark Rasch, a former prosecutor with the U.S. Department of Justice.

“And then we have this emergency process, almost like you see on [the television series] Law & Order, where they say they need certain information immediately,” Rasch continued. “Providers have a streamlined process where they publish the fax or contact information for police to get emergency access to data. But there’s no real mechanism defined by most Internet service providers or tech companies to test the validity of a search warrant or subpoena. And so as long as it looks right, they’ll comply.”

To make matters more complicated, there are tens of thousands of police jurisdictions around the world — including roughly 18,000 in the United States alone — and all it takes for hackers to succeed is illicit access to a single police email account.

THE LAPSUS$ CONNECTION

The reality that teenagers are now impersonating law enforcement agencies to subpoena privileged data on their targets at whim is evident in the dramatic backstory behind LAPSUS$, the data extortion group that recently hacked into some of the world’s most valuable technology companies, including Microsoft, Okta, NVIDIA and Vodafone.

In a blog post about their recent hack, Microsoft said LAPSUS$ succeeded against its targets through a combination of low-tech attacks, mostly involving old-fashioned social engineering — such as bribing employees at or contractors for the target organization.

“Other tactics include phone-based social engineering; SIM-swapping to facilitate account takeover; accessing personal email accounts of employees at target organizations; paying employees, suppliers, or business partners of target organizations for access to credentials and multi-factor authentication (MFA) approval; and intruding in the ongoing crisis-communication calls of their targets,” Microsoft wrote of LAPSUS$.

The roster of the now-defunct “Infinity Recursion” hacking team, from which some members of LAPSUS$ allegedly hail.

Researchers from security firms Unit 221B and Palo Alto Networks say that prior to launching LAPSUS$, the group’s leader “White” (a.k.a. “WhiteDoxbin,” “Oklaqq”) was a founding member of a cybercriminal group calling itself the “Recursion Team.” This group specialized in SIM swapping targets of interest and participating in “swatting” attacks, wherein fake bomb threats, hostage situations and other violent scenarios are phoned in to police as part of a scheme to trick them into visiting potentially deadly force on a target’s address.

The founder of the Recursion Team was a then 14-year-old from the United Kingdom who used the handle “Everlynn.” On April 5, 2021, Everlynn posted a new sales thread to the cybercrime forum cracked[.]to titled, “Warrant/subpoena service (get law enforcement data from any service).” The price: $100 to $250 per request.

Everlynn advertising a warrant/subpoena service based on fake EDRs. Image: Ke-la.com.

“Services [include] Apple, Snapchat, Google (more expensive), not doing Discord, basically any site mostly,” read Everlynn’s ad, which was posted by the user account “InfinityRecursion.”

A month prior on Cracked, Everlynn posted a sales thread, “1x Government Email Account || BECOME A FED!,” which advertised the ability to send email from a federal agency within the government of Argentina.

“I would like to sell a government email that can be used for subpoena for many companies such as Apple, Uber, Instagram, etc.,” Everlynn’s sales thread explained, setting the price at $150. “You can breach users and get private images from people on SnapChat like nudes, go hack your girlfriend or something haha. You won’t get the login for the account, but you’ll basically obtain everything in the account if you play your cards right. I am not legally responsible if you mishandle this. This is very illegal and you will get raided if you don’t use a vpn. You can also breach into the government systems for this, and find LOTS of more private data and sell it for way, way more.”

Last week, the BBC reported that authorities in the United Kingdom had detained seven individuals aged 16 to 21 in connection with LAPSUS$. Continue reading →

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Estonian Tied to 13 Ransomware Attacks Gets 66 Months in Prison

March 25, 2022
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An Estonian man was sentenced today to more than five years in a U.S. prison for his role in at least 13 ransomware attacks that caused losses of approximately $53 million. Prosecutors say the accused also enjoyed a lengthy career of “cashing out” access to hacked bank accounts worldwide.

Maksim Berezan, 37, is an Estonian national who was arrested nearly two years ago in Latvia. U.S. authorities alleged Berezan was a longtime member of DirectConnection, a closely-guarded Russian cybercriminal forum that existed until 2015. Berezan’s indictment (PDF) says he used his status at DirectConnection to secure cashout jobs from other vetted crooks on the exclusive crime forum.

Berezan specialized in cashouts and “drops.” Cashouts refer to using stolen payment card data to make fraudulent purchases or to withdraw money from bank accounts without authorization. A drop is a location or individual able to securely receive and forward funds or goods obtained through cashouts or other types of fraud. Drops typically are used to make it harder for law enforcement to trace fraudulent transactions and to circumvent fraud detection measures used by banks and credit card companies.

Acting on information from U.S. authorities, in November 2020 Latvian police searched Berezan’s residence there and found a red Porsche Carrera 911, a black Porsche Cayenne, a Ducati motorcycle, and an assortment of jewelry. They also seized $200,000 in currency, and $1.7 million in bitcoin.

After Berezan was extradited to the United States in December 2020, investigators searching his electronic devices said they found “significant evidence of his involvement in ransomware activity.”

“The post-extradition investigation determined that Berezan had participated in at least 13 ransomware attacks, 7 of which were against U.S. victims, and that approximately $11 million in ransom payments flowed into cryptocurrency wallets that he controlled,” reads a statement from the U.S. Department of Justice.

Berezan pleaded guilty in April 2021 to conspiracy to commit wire fraud. Continue reading →

A Closer Look at the LAPSUS$ Data Extortion Group

March 23, 2022
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Microsoft and identity management platform Okta both this week disclosed breaches involving LAPSUS$, a relatively new cybercrime group that specializes in stealing data from big companies and threatening to publish it unless a ransom demand is paid. Here’s a closer look at LAPSUS$, and some of the low-tech but high-impact methods the group uses to gain access to targeted organizations.

First surfacing in December 2021 with an extortion demand on Brazil’s Ministry of Health, LAPSUS$ made headlines more recently for posting screenshots of internal tools tied to a number of major corporations, including NVIDIA, Samsung, and Vodafone.

On Tuesday, LAPSUS$ announced via its Telegram channel it was releasing source code stolen from Microsoft. In a blog post published Mar. 22, Microsoft said it interrupted the LAPSUS$ group’s source code download before it could finish, and that it was able to do so because LAPSUS$ publicly discussed their illicit access on their Telegram channel before the download could complete.

One of the LAPSUS$ group members admitted on their Telegram channel that the Microsoft source code download had been interrupted.

“This public disclosure escalated our action allowing our team to intervene and interrupt the actor mid-operation, limiting broader impact,” Microsoft wrote. “No customer code or data was involved in the observed activities. Our investigation has found a single account had been compromised, granting limited access. Microsoft does not rely on the secrecy of code as a security measure and viewing source code does not lead to elevation of risk.”

While it may be tempting to dismiss LAPSUS$ as an immature and fame-seeking group, their tactics should make anyone in charge of corporate security sit up and take notice. Microsoft says LAPSUS$ — which it boringly calls “DEV-0537” — mostly gains illicit access to targets via “social engineering.” This involves bribing or tricking employees at the target organization or at its myriad partners, such as customer support call centers and help desks.

“Microsoft found instances where the group successfully gained access to target organizations through recruited employees (or employees of their suppliers or business partners),” Microsoft wrote. The post continues:

“DEV-0537 advertised that they wanted to buy credentials for their targets to entice employees or contractors to take part in its operation. For a fee, the willing accomplice must provide their credentials and approve the MFA prompt or have the user install AnyDesk or other remote management software on a corporate workstation allowing the actor to take control of an authenticated system. Such a tactic was just one of the ways DEV-0537 took advantage of the security access and business relationships their target organizations have with their service providers and supply chains.”

The LAPSUS$ Telegram channel has grown to more than 45,000 subscribers, and Microsoft points to an ad LAPSUS$ posted there offering to recruit insiders at major mobile phone providers, large software and gaming companies, hosting firms and call centers.

Sources tell KrebsOnSecurity that LAPSUS$ has been recruiting insiders via multiple social media platforms since at least November 2021. One of the core LAPSUS$ members who used the nicknames “Oklaqq” and “WhiteDoxbin” posted recruitment messages to Reddit last year, offering employees at AT&T, T-Mobile and Verizon up to $20,000 a week to perform “inside jobs.”

LAPSUS$ leader Oklaqq a.k.a. “WhiteDoxbin” offering to pay $20,000 a week to corrupt employees at major mobile providers.

Many of LAPSUS$’s recruitment ads are written in both English and Portuguese. According to cyber intelligence firm Flashpoint, the bulk of the group’s victims (15 of them) have been in Latin America and Portugal.

“LAPSUS$ currently does not operate a clearnet or darknet leak site or traditional social media accounts—it operates solely via Telegram and email,” Flashpoint wrote in an analysis of the group. “LAPSUS$ appears to be highly sophisticated, carrying out increasingly high-profile data breaches. The group has claimed it is not state-sponsored. The individuals behind the group are likely experienced and have demonstrated in-depth technical knowledge and abilities.”

Microsoft said LAPSUS$ has been known to target the personal email accounts of employees at organizations they wish to hack, knowing that most employees these days use some sort of VPN to remotely access their employer’s network.

“In some cases, [LAPSUS$] first targeted and compromised an individual’s personal or private (non-work-related) accounts giving them access to then look for additional credentials that could be used to gain access to corporate systems,” Microsoft wrote. “Given that employees typically use these personal accounts or numbers as their second-factor authentication or password recovery, the group would often use this access to reset passwords and complete account recovery actions.”

In other cases, Microsoft said, LAPSUS$ has been seen calling a target organization’s help desk and attempting to convince support personnel to reset a privileged account’s credentials.

“The group used the previously gathered information (for example, profile pictures) and had a native-English-sounding caller speak with the help desk personnel to enhance their social engineering lure,” Microsoft explained. “Observed actions have included DEV-0537 answering common recovery prompts such as “first street you lived on” or “mother’s maiden name” to convince help desk personnel of authenticity. Since many organizations outsource their help desk support, this tactic attempts to exploit those supply chain relationships, especially where organizations give their help desk personnel the ability to elevate privileges.”

LAPSUS$ recruiting insiders via its Telegram channel.

Continue reading →

‘Spam Nation’ Villain Vrublevsky Charged With Fraud

March 22, 2022
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Pavel Vrublevsky, founder of the Russian payment technology firm ChronoPay and the antagonist in my 2014 book “Spam Nation,” was arrested in Moscow this month and charged with fraud. Russian authorities allege Vrublevsky operated several fraudulent SMS-based payment schemes, and facilitated money laundering for Hydra, the largest Russian darknet market. But according to information obtained by KrebsOnSecurity, it is equally likely Vrublevsky was arrested thanks to his propensity for carefully documenting the links between Russia’s state security services and the cybercriminal underground.

An undated photo of Vrublevsky at his ChronoPay office in Moscow.

ChronoPay specializes in providing access to the global credit card networks for “high risk” merchants — businesses involved in selling services online that tend to generate an unusually large number of chargebacks and reports of fraud, and hence have a higher risk of failure.

When I first began writing about Vrublevsky in 2009 as a reporter for The Washington Post, ChronoPay and its sister firm Red & Partners (RNP) were earning millions setting up payment infrastructure for fake antivirus peddlers and spammers pimping male enhancement drugs.

Using the hacker alias “RedEye,” the ChronoPay CEO oversaw a burgeoning pharmacy spam affiliate program called Rx-Promotion, which paid some of Russia’s most talented spammers and virus writers to bombard the world with junk email promoting Rx-Promotion’s pill shops. RedEye also was the administrator of Crutop, a Russian language forum and affiliate program that catered to thousands of adult webmasters.

In 2013, Vrublevsky was sentenced to 2.5 years in a Russian penal colony for convincing one of his top affiliates to launch a distributed denial-of-service (DDoS) attack against a competitor that shut down the ticketing system for the state-owned Aeroflot airline.

Following his release from jail, Vrublevsky began working on a new digital payments platform based in Hong Kong called HPay Ltd (a.k.a. Hong Kong Processing Corporation). HPay appears to have had a great number of clients that were running schemes which bamboozled people with fake lotteries and prize contests.

According to Russian prosecutors, the scam went like this: Consumers would receive an SMS with links to sites that falsely claimed a number of well-known companies were sponsoring drawings and lotteries for people who enrolled or agreed to answer surveys. All who responded were told they were winners, but also that they had to pay a commission to pick up the prize. That scheme allegedly stole 500 million rubles (~ USD $4.5 million) from over 100,000 consumers.

There are scant public records that show a connection between ChronoPay and HPay, apart from the fact that the latter’s website — hpay[.]io — was originally hosted on the same server (185.180.196.74) along with a handful of other domains, including Vrublevsky’s personal website rnp[.]com.

But then earlier this month, KrebsOnSecurity received a large amount of information that was stolen from ChronoPay recently when hackers managed to compromise the company’s Confluence server. Confluence is a web-based corporate wiki platform, and ChronoPay used their Confluence installation to document in exquisite detail how it creatively distributes the risk associated with high-risk processing by routing transactions through a myriad of shell companies and third-party processors.

A Google-translated snippet of the hacked ChronoPay Confluence installation. Click to enlarge.

Incredibly, Vrublevsky himself appears to have used ChronoPay’s Confluence wiki to document his entire 20+ years of personal and professional history in the high-risk payments space, including the company’s most recent forays with HPay. The latest document in the hacked archive is dated April 2021.

These diary entries, interspersed between highly technical how-tos, are all written in Russian and in the third person. But they are unmistakably Vrublevsky’s words: Some of the elaborate stories in the wiki were identical to theories that Vrublevsky himself espoused to me throughout hundreds of hours of phone interviews. Also, in some of the entries the narrator switches from “he” to “I” when describing the actions of Vrublevsky.

Vrublevsky’s memoire/wiki invokes the nicknames and real names of Russian hackers who worked with the protection of corrupt officials in the Russian Federal Security Service (FSB), the successor agency to the Soviet KGB. In several diary entries, Vrublevsky writes about various cybercriminals and Russian law enforcement officials involved in processing credit card payments tied to online gambling sites.

Russian banks are prohibited from processing payments for online gambling, and as a result many online gaming sites catering to Russian speakers have chosen to process credit card payments through Ukrainian financial institutions.

That’s according to Vladislav “BadB” Horohorin, the convicted cybercriminal who shared the ChronoPay Confluence data with KrebsOnSecurity. In February 2017, Horohorin was released after serving four years in a U.S. prison for his role in the 2009 theft of more than $9 million from RBS Worldpay.

Horohorin said Vrublevsky has been using his knowledge of the card processing networks to extort people in the online gambling industry who may run afoul of Russian laws.

“Russia has strict regulations against processing for the gambling business,” Horohorin said. “While Russian banks can’t do it, Ukrainian ones can, so we have Ukrainian banks processing gambling and casinos, which mostly Russian gamblers use. What Pavel does is he blackmails those Ukrainian banks using his connections and knowledge. Some pay, some don’t. But some people are not very tolerant of that kind of abuse.” Continue reading →

Pro-Ukraine ‘Protestware’ Pushes Antiwar Ads, Geo-Targeted Malware

March 17, 2022
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Researchers are tracking a number of open-source “protestware” projects on GitHub that have recently altered their code to display “Stand with Ukraine” messages for users, or basic facts about the carnage in Ukraine. The group also is tracking several code packages that were recently modified to erase files on computers that appear to be coming from Russian or Belarusian Internet addresses.

The upstart tracking effort is being crowdsourced via Telegram, but the output of the Russian research group is centralized in a Google Spreadsheet that is open to the public. Most of the GitHub code repositories tracked by this group include relatively harmless components that will either display a simple message in support of Ukraine, or show statistics about the war in Ukraine — such as casualty numbers — and links to more information on the Deep Web.

For example, the popular library ES5-ext hadn’t updated its code in nearly two years. But on March 7, the code project added a component “postinstall.js,” which checks to see if the user’s computer is tied to a Russian Internet address. If so, the code broadcasts a “Call for peace:”

A message that appears for Russian users of the popular es5-ext code library on GitHub. The message has been Google-Translated from Russian to English.

A more concerning example can be found at the GitHub page for “vue-cli,” a popular Javascript framework for building web-based user interfaces. On March 15, users discovered a new component had been added that was designed to wipe all files from any systems visiting from a Russian or Belarusian Internet address (the malicious code has since been removed):

Readers complaining that an update to the popular Vue-Cli package sought to wipe files if the user was coming from a Russian IP address.

“Man, I love politics in my APIs,” GitHub user “MSchleckser” commented wryly on Mar. 15. Continue reading →

Lawmakers Probe Early Release of Top RU Cybercrook

March 15, 2022
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Aleksei Burkov, seated second from right, attends a hearing in Jerusalem in 2015. Image: Andrei Shirokov / Tass via Getty Images.

Aleksei Burkov, a cybercriminal who long operated two of Russia’s most exclusive underground hacking forums, was arrested in 2015 by Israeli authorities. The Russian government fought Burkov’s extradition to the U.S. for four years — even arresting and jailing an Israeli woman to force a prisoner swap. That effort failed: Burkov was sent to America, pleaded guilty, and was sentenced to nine years in prison. But a little more than a year later, he was quietly released and deported back to Russia. Now some Republican lawmakers are asking why a Russian hacker once described as “an asset of supreme importance” was allowed to shorten his stay.

A native of St. Petersburg, Russia, Burkov admitted to running CardPlanet, a site that sold more than 150,000 stolen credit card accounts, and to being a founder of DirectConnection — a closely guarded online community that attracted some of the world’s most-wanted Russian hackers.

But Burkov’s cybercriminal activities spanned far beyond mere credit card fraud. A 2019 deep dive into Burkov’s hacker alias “K0pa” revealed he also was co-administrator of the secretive Russian cybercrime forum “Mazafaka.” Like DirectConnection, Mazafaka’s member roster was a veritable “Who’s Who?” of the Russian hacker underground, and K0pa played a key role in vetting new members and settling disputes for both communities.

K0pa’s elevated status in the Russian cybercrime community made him one of the most connected malicious hackers ever apprehended by U.S. authorities. As I wrote at the time of Burkov’s extradition, the Kremlin was probably concerned that he simply knew too much about Russia’s propensity to outsource certain activities to its criminal hacker community.

“To my knowledge, no one has accused Burkov of being some kind of cybercrime fixer or virtual badguy Rolodex for the Russian government,” KrebsOnSecurity wrote in 2019. “On the other hand, from his onetime lofty perch atop some of the most exclusive Russian cybercrime forums, K0pa certainly would have fit that role nicely.”

Burkov was arrested in December 2015 on an international warrant while visiting Israel, and over the ensuing four years the Russian government aggressively sought to keep him from being extradited to the United States.

When Israeli authorities turned down requests to send him back to Russia — supposedly to face separate hacking charges there — the Russians imprisoned Israeli citizen Naama Issachar on trumped-up drug charges in a bid to trade prisoners. Nevertheless, Burkov was extradited to the United States in November 2019.

And if there were any doubts Issachar was jailed for use as a political pawn, Russian President Vladimir Putin erased those by pardoning her in January 2020, just hours after Burkov pleaded guilty in the United States.

In June 2020, Burkov was sentenced to nine years in prison. But a little more than a year later — Aug. 25, 2021 — Burkov was released and deported back to Russia. According to a letter (PDF) sent Monday by four Republican House lawmakers to White House National Security Advisor Jake Sullivan, U.S. Immigration and Customs Enforcement (ICE) officials escorted Burkov onto a plane destined for Moscow shortly after his release. Continue reading →

Report: Recent 10x Increase in Cyberattacks on Ukraine

March 11, 2022
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As their cities suffered more intense bombardment by Russian military forces this week, Ukrainian Internet users came under renewed cyberattacks, with one Internet company providing service there saying they blocked ten times the normal number of phishing and malware attacks targeting Ukrainians.

John Todd is general manager of Quad9, a free “anycast” DNS platform. DNS stands for Domain Name System, which is like a globally distributed phone book for the Internet that maps human-friendly website names (example.com) to numeric Internet addresses (8.8.4.4.) that are easier for computers to manage. Your computer or mobile device generates DNS lookups each time you send or receive an email, or browse to a webpage.

With anycast, one Internet address can apply to many servers, meaning that any one of a number of DNS servers can respond to DNS queries, and usually the one that is geographically closest to the customer making the request will provide the response.

Quad9 insulates its users from a range of cyberattacks by blocking DNS requests for known-bad domain names, i.e., those confirmed to be hosting malicious software, phishing websites, stalkerware and other threats. And normally, the ratio of DNS queries coming from Ukraine that are allowed versus blocked by Quad9 is fairly constant.

But Todd says that on March 9, Quad9’s systems blocked 10 times the normal number of DNS requests coming from Ukraine, and to a lesser extent Poland.

Todd said Quad9 saw a significant drop in traffic reaching its Kyiv POP [point of presence] during the hostilities, presumably due to fiber cuts or power outages. Some of that traffic then shifted to Warsaw, which for much of Ukraine’s networking is the next closest significant interconnect site.

Quad9’s view of a spike in malicious traffic targeting Ukrainian users this week. Click to enlarge.

“While our overall traffic dropped in Kyiv — and slightly increased in Warsaw due to infrastructure outages inside of .ua — the ratio of (good queries):(blocked queries) has spiked in both cities,” he continued. “The spike in that blocking ratio [Wednesday] afternoon in Kyiv was around 10x the normal level when comparing against other cities in Europe (Amsterdam, Frankfurt.) While Ukraine always is slightly higher (20%-ish) than Western Europe, this order-of-magnitude jump is unprecedented.” Continue reading →

Microsoft Patch Tuesday, March 2022 Edition

March 9, 2022
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Microsoft on Tuesday released software updates to plug at least 70 security holes in its Windows operating systems and related software. For the second month running, there are no scary zero-day threats looming for Windows users, and relatively few “critical” fixes. And yet we know from experience that attackers are already trying to work out how to turn these patches into a roadmap for exploiting the flaws they fix. Here’s a look at the security weaknesses Microsoft says are most likely to be targeted first.

Greg Wiseman, product manager at Rapid7, notes that three vulnerabilities fixed this month have been previously disclosed, potentially giving attackers a head start in working out how to exploit them. Those include remote code execution bugs CVE-2022-24512, affecting .NET and Visual Studio, and CVE-2022-21990, affecting Remote Desktop Client. CVE-2022-24459 is a vulnerability in the Windows Fax and Scan service. All three publicly disclosed vulnerabilities are rated “Important” by Microsoft.

Just three of the fixes this month earned Microsoft’s most-dire “Critical” rating, which Redmond assigns to bugs that can be exploited to remotely compromise a Windows PC with little to no help from users. Two of those critical flaws involve Windows video codecs. Perhaps the most concerning critical bug quashed this month is CVE-2022-23277, a  remote code execution flaw affecting Microsoft Exchange Server.

“Thankfully, this is a post-authentication vulnerability, meaning attackers need credentials to exploit it,” Wiseman said. “Although passwords can be obtained via phishing and other means, this one shouldn’t be as rampantly exploited as the deluge of Exchange vulnerabilities we saw throughout 2021. Exchange administrators should still patch as soon as reasonably possible.”

CVE-2022-24508 is a remote code execution bug affecting Windows SMBv3, the technology that handles file sharing in Windows environments.

“This has potential for widespread exploitation, assuming an attacker can put together a suitable exploit,” Wiseman said. “Luckily, like this month’s Exchange vulnerabilities, this, too, requires authentication.” Continue reading →

Internet Backbone Giant Lumen Shuns .RU

March 8, 2022
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Lumen Technologies, an American company that operates one of the largest Internet backbones and carries a significant percentage of the world’s Internet traffic, said today it will stop routing traffic for organizations based in Russia. Lumen’s decision comes just days after a similar exit by backbone provider Cogent, and amid a news media crackdown in Russia that has already left millions of Russians in the dark about what is really going on with their president’s war in Ukraine.

Monroe, La. based Lumen [NYSE: LUMN] (formerly CenturyLink) initially said it would halt all new business with organizations based in Russia, leaving open the possibility of continuing to serve existing clients there. But on Tuesday the company said it could no longer justify that stance.

“Life has taken a turn in Russia and Lumen is unable to continue to operate in this market,” Lumen said in a published statement. “The business services we provide are extremely small and very limited as is our physical presence. However, we are taking steps to immediately stop business in the region.”

“We decided to disconnect the network due to increased security risk inside Russia,” the statement continues. “We have not yet experienced network disruptions but given the increasingly uncertain environment and the heightened risk of state action, we took this move to ensure the security of our and our customers’ networks, as well as the ongoing integrity of the global Internet.”

According to Internet infrastructure monitoring firm Kentik, Lumen is the top international transit provider to Russia, with customers including Russian telecom giants Rostelecom and TTK, as well as all three major mobile operators (MTS, Megafon and VEON).

“A backbone carrier disconnecting its customers in a country the size of Russia is without precedent in the history of the internet and reflects the intense global reaction that the world has had over the invasion of Ukraine,” wrote Doug Madory, Kentik’s director of Internet analysis.

It’s not clear whether any other Internet backbone providers — some of which are based outside of the United States — will follow the lead of Lumen and Cogent. But Madory notes that as economic sanctions continue to exact a toll on Russia’s economy, its own telecommunications firms may have difficulty paying foreign transit providers for service.

Ukrainian leaders petitioned the Internet Corporation for Assigned Names and Numbers (ICANN) — the nonprofit organization charged with overseeing the global domain name system — to disconnect Russia’s top-level domain (.ru) from the Internet. ICANN respectfully declined that request, but many technology giants, including Amazon, Apple and Microsoft, have moved on their own to suspend new business in the country.

Meanwhile, Russia recently cracked down on the last remaining vestiges of a free press within its borders, passing a new law that threatens up to 15 years in jail for anyone who publishes content that refers to the conflict in Ukraine as a “war” or “invasion.” Continue reading →