Login
On March 8, 2024, KrebsOnSecurity published a deep dive on the consumer data broker Radaris, showing how the original owners are two men in Massachusetts who operated multiple Russian language dating services and affiliate programs, in addition to a dizzying array of people-search websites. The subjects of that piece are threatening to sue KrebsOnSecurity for defamation unless the story is retracted. Meanwhile, their attorney has admitted that the person Radaris named as the CEO from its inception is a fabricated identity.
Radaris is just one cog in a sprawling network of people-search properties online that sell highly detailed background reports on U.S. consumers and businesses. Those reports typically include the subject’s current and previous addresses, partial Social Security numbers, any known licenses, email addresses and phone numbers, as well as the same information for any of their immediate relatives.
Radaris has a less-than-stellar reputation when it comes to responding to consumers seeking to have their reports removed from its various people-search services. That poor reputation, combined with indications that the true founders of Radaris have gone to extraordinary lengths to conceal their stewardship of the company, was what prompted KrebsOnSecurity to investigate the origins of Radaris in the first place.
On April 18, KrebsOnSecurity received a certified letter (PDF) from Valentin “Val” Gurvits, an attorney with the Boston Law Group, stating that KrebsOnSecurity would face a withering defamation lawsuit unless the Radaris story was immediately retracted and an apology issued to the two brothers named in the story as co-founders.
That March story worked backwards from the email address used to register radaris.com, and charted an impressive array of data broker companies created over the past 15 years by Massachusetts residents Dmitry and Igor Lubarsky (also sometimes spelled Lybarsky or Lubarski). Dmitry goes by “Dan,” and Igor uses the name “Gary.”
Those businesses included numerous websites marketed to Russian-speaking people who are new to the United States, such as russianamerica.com, newyork.ru, russiancleveland.com, russianla.com, russianmiami.com, etc. Other domains connected to the Lubarskys included Russian-language dating and adult websites, as well as affiliate programs for their international calling card businesses.
A mind map of various entities apparently tied to Radaris and the company’s co-founders. Click to enlarge.
The story on Radaris noted that the Lubarsky brothers registered most of their businesses using a made-up name — “Gary Norden,” sometimes called Gary Nord or Gary Nard.
Mr. Gurvits’ letter stated emphatically that my reporting was lazy, mean-spirited, and obviously intended to smear the reputation of his clients. By way of example, Mr. Gurvits said the Lubarskys were actually Ukrainian, and that the story painted his clients in a negative light by insinuating that they were somehow associated with Radaris and with vaguely nefarious elements in Russia.
But more to the point, Mr. Gurvits said, neither of his clients were Gary Norden, and neither had ever held any leadership positions at Radaris, nor were they financial beneficiaries of the company in any way.
“Neither of my clients is a founder of Radaris, and neither of my clients is the CEOs of Radaris,” Gurvits wrote. “Additionally, presently and going back at least the past 10 years, neither of my clients are (or were) officers or employees of Radaris. Indeed, neither of them even owns (or ever owned) any equity in Radaris. In intentional disregard of these facts, the Article implies that my clients are personally responsible for Radaris’ actions. Therefore, you intentionally caused all negative allegations in the Article made with respect to Radaris to be imputed against my clients personally.”
Dan Lubarsky’s Facebook page, just prior to the March 8 story about Radaris, said he was from Moscow.
We took Mr. Gurvits’ word on the ethnicity of his clients, and adjusted the story to remove a single mention that they were Russian. We did so even though Dan Lubarsky’s own Facebook page said (until recently) that he was from Moscow, Russia.
KrebsOnSecurity asked Mr. Gurvits to explain precisely which other details in the story were incorrect, and replied that we would be happy to update the story with a correction if they could demonstrate any errors of fact or omission.
We also requested specifics about several aspects of the story, such as the identity of the current Radaris CEO — listed on the Radaris website as “Victor K.” Mr. Gurvits replied that Radaris is and always has been based in Ukraine, and that the company’s true founder “Eugene L” is based there.
While Radaris has claimed to have offices in Massachusetts, Cyprus and Latvia, its website has never mentioned Ukraine. Mr. Gurvits has not responded to requests for more information about the identities of “Eugene L” or “Victor K.”
Gurvits said he had no intention of doing anyone’s reporting for them, and that the Lubarskys were going to sue KrebsOnSecurity for defamation unless the story was retracted in full. KrebsOnSecurity replied that journalists often face challenges to things that they report, but it is more than rare for one who makes a challenge to take umbrage at being asked for supporting information.
On June 13, Mr. Gurvits sent another letter (PDF) that continued to claim KrebsOnSecurity was defaming his clients, only this time Gurvits said his clients would be satisfied if KrebsOnSecurity just removed their names from the story.
“Ultimately, my clients don’t care what you say about any of the websites or corporate entities in your Article, as long as you completely remove my clients’ names from the Article and cooperate with my clients to have copies of the Article where my clients’ names appear removed from the Internet,” Mr. Gurvits wrote.
The June 13 letter explained that the name Gary Norden was a pseudonym invented by the Radaris marketing division, but that neither of the Lubarsky brothers were Norden.
This was a startling admission, given that Radaris has quoted the fictitious Gary Norden in press releases published and paid for by Radaris, and in news media stories where the company is explicitly seeking money from investors. In other words, Radaris has been misrepresenting itself to investors from the beginning. Here’s a press release from Radaris that was published on PR Newswire in April 2011:
A press release published by Radaris in 2011 names the CEO of Radaris as Gary Norden, which was a fake name made up by Radaris’ marketing department.
In April 2014, the Boston Business Journal published a story (PDF) about Radaris that extolled the company’s rapid growth and considerable customer base. The story noted that, “to date, the company has raised less than $1 million from Cyprus-based investment company Difive.”
“We live in a world where information becomes much more broad and much more available every single day,” the Boston Business Journal quoted Radaris’ fake CEO Gary Norden, who by then had somehow been demoted from CEO to vice president of business development.
A Boston Business Journal story from April 2014 quotes the fictitious Radaris CEO Gary Norden.
“We decided there needs to be a service that allows for ease of monitoring of information about people,” the fake CEO said. The story went on to say Radaris was seeking to raise between $5 million and $7 million from investors in the ensuing months.
In his most recent demand letter, Mr. Gurvits helpfully included resumes for both of the Lubarsky brothers.
Dmitry Lubarsky’s resume states he is the owner of Difive.com, a startup incubator for IT companies. Recall that Difive is the same company mentioned by the fake Radaris CEO in the 2014 Boston Business Journal story, which said Difive was the company’s initial and sole investor.
Difive’s website in 2016 said it had offices in Boston, New York, San Francisco, Riga (Latvia) and Moscow (nothing in Ukraine). Meanwhile, DomainTools.com reports difive.com was originally registered in 2007 to the fictitious Gary Norden from Massachusetts.
Archived copies of the Difive website from 2017 include a “Portfolio” page indexing all of the companies in which Difive has invested. That list, available here, includes virtually every “Gary Norden” domain name mentioned in my original report, plus a few that escaped notice earlier.
Dan Lubarsky’s resume says he was CEO of a people search company called HumanBook. The Wayback machine at archive.org shows the Humanbook domain (humanbook.com) came online around April 2008, when the company was still in “beta” mode.
By August 2008, however, humanbook.com had changed the name advertised on its homepage to Radaris Beta. Eventually, Humanbook simply redirected to radaris.com.
Archive.org’s record of humanbook.com from 2008, just after its homepage changed to Radaris Beta.
Astute readers may notice that the domain radaris.com is not among the companies listed as Difive investments. However, passive domain name system (DNS) records from DomainTools show that between October 2023 and March 2024 radaris.com was hosted alongside all of the other Gary Norden domains at the Internet address range 38.111.228.x.
That address range simultaneously hosted every domain mentioned in this story and in the original March 2024 report as connected to email addresses used by Gary Norden, including radaris.com, radaris.ru, radaris.de, difive.com, privet.ru, blog.ru, comfi.com, phoneowner.com, russianamerica.com, eprofit.com, rehold.com, homeflock.com, humanbook.com and dozens more. A spreadsheet of those historical DNS entries for radaris.com is available here (.csv).
Image: DomainTools.com
The breach tracking service Constella Intelligence finds just two email addresses ending in difive.com have been exposed in data breaches over the years: dan@difive.com, and gn@difive.com. Presumably, “gn” stands for Gary Norden.
A search on the email address gn@difive.com via the breach tracking service osint.industries reveals this address was used to create an account at Airbnb under the name Gary, with the last four digits of the account’s phone number ending in “0001.”
Constella Intelligence finds gn@difive.com was associated with the Massachusetts number 617-794-0001, which was used to register accounts for “Igor Lybarsky” from Wellesley or Sherborn, Ma. at multiple online businesses, including audiusa.com and the designer eyewear store luxottica.com.
The phone number 617-794-0001 also appears for a “Gary Nard” user at russianamerica.com. Igor Lubarsky’s resume says he was the manager of russianamerica.com.
DomainTools finds 617-794-0001 is connected to registration records for three domains, including paytone.com, a domain that Dan Lubarsky’s resume says he managed. DomainTools also found that number on the registration records for trustoria.com, another major consumer data broker that has an atrocious reputation, according to the Better Business Bureau.
Dan Lubarsky’s resume says he was responsible for several international telecommunications services, including the website comfi.com. DomainTools says the phone number connected to that domain — 617-952-4234 — was also used on the registration records for humanbook.net/biz/info/mobi/us, as well as for radaris.me, radaris.in, and radaris.tel.
Two other key domains are connected to that phone number. The first is barsky.com, which is the website for Barsky Estate Realty Trust (PDF), a real estate holding company controlled by the Lubarskys. Naturally, DomainTools finds barsky.com also was registered to a Gary Norden from Massachusetts. But the organization listed in the barsky.com registration records is Comfi Inc., a VOIP communications firm that Dan Lubarsky’s resume says he managed.
The other domain of note is unipointtechnologies.com. Dan Lubarsky’s resume says he was the CEO of Wellesley Hills, Mass-based Unipoint Technology Inc. In 2012, Unipoint was fined $179,000 by the U.S. Federal Communications Commission, which said the company had failed to apply for a license to provide international telecommunications services.
A pandemic assistance loan granted in 2020 to Igor Lybarsky of Sherborn, Ma. shows he received the money to an entity called Norden Consulting.
Notice the name on the recipient of this government loan for Igor Lybarsky from Sherborn, Ma: Norden Consulting.
The 2011 Radaris press release quoting their fake CEO Gary Norden said the company had four patents pending from a team of computer science PhDs. According to the resume shared by Mr. Gurvits, Dan Lubarsky has a PhD in computer science.
The U.S. Patent and Trademark Office (PTO) says Dan Lubarsky/Lubarski has at least nine technology patents to his name. The fake CEO press release from Radaris mentioning its four patents was published in April 2011. By that time, the PTO says Dan Lubarsky had applied for exactly four patents, including, “System and Method for a Web-Based People Directory.” The first of those patents, published in 2009, is tied to Humanbook.com, the company Dan Lubarsky founded that later changed its name to Radaris.
If the Lubarskys were never involved in Radaris, how do they or their attorney know the inside information that Gary Norden is a fiction of Radaris’ marketing department? KrebsOnSecurity has learned that Mr. Gurvits is the same attorney responding on behalf of Radaris in a lawsuit against the data broker filed earlier this year by Atlas Data Privacy.
Mr. Gurvits also stepped forward as Radaris’ attorney in a class action lawsuit the company lost in 2017 because it never contested the claim in court. When the plaintiffs told the judge they couldn’t collect on the $7.5 million default judgment, the judge ordered the domain registry Verisign to transfer the radaris.com domain name to the plaintiffs.
Mr. Gurvits appealed the verdict, arguing that the lawsuit hadn’t named the actual owners of the Radaris domain name — a Cyprus company called Bitseller Expert Limited — and thus taking the domain away would be a violation of their due process rights.
The judge ruled in Radaris’ favor — halting the domain transfer — and told the plaintiffs they could refile their complaint. Soon after, the operator of Radaris changed from Bitseller to Andtop Company, an entity formed (PDF) in the Marshall Islands in Oct. 2020. Andtop also operates the aforementioned people-search service Trustoria.
Mr. Gurvits’ most-publicized defamation case was a client named Aleksej Gubarev, a Russian technology executive whose name appeared in the Steele Dossier. That document included a collection of salacious, unverified information gathered by the former British intelligence officer Christopher Steele during the 2016 U.S. presidential campaign at the direction of former president Donald Trump’s political rivals.
Gubarev, the head of the IT services company XBT Holding and the Florida web hosting firm Webzilla, sued BuzzFeed for publishing the Steele dossier. One of the items in the dossier alleged that XBT/Webzilla and affiliated companies played a key role in the hack of Democratic Party computers in the spring of 2016. The memo alleged Gubarev had been coerced into providing services to Russia’s main domestic security agency, known as the FSB.
In December 2018, a federal judge in Miami ruled in favor of BuzzFeed, saying the publication was protected by the fair report privilege, which gives news organizations latitude in reporting on official government proceedings.
Radaris was originally operated by Bitseller Expert Limited. Who owns Bitseller Expert Limited? A report (PDF) obtained from the Cyprus business registry shows this company lists its director as Pavel Kaydash from Moscow. Mr. Kaydash could not be reached for comment.
Related tags
Law enforcement agencies in the United States and Europe today announced Operation Endgame, a coordinated action against some of the most popular cybercrime platforms for delivering ransomware and data-stealing malware. Dubbed “the largest ever operation against botnets,” the international effort is being billed as the opening salvo in an ongoing campaign targeting advanced malware “droppers” or “loaders” like IcedID, Smokeloader and Trickbot.
A frame from one of three animated videos released today in connection with Operation Endgame.
Operation Endgame targets the cybercrime ecosystem supporting droppers/loaders, slang terms used to describe tiny, custom-made programs designed to surreptitiously install malware onto a target system. Droppers are typically used in the initial stages of a breach, and they allow cybercriminals to bypass security measures and deploy additional harmful programs, including viruses, ransomware, or spyware.
Droppers like IcedID are most often deployed through email attachments, hacked websites, or bundled with legitimate software. For example, cybercriminals have long used paid ads on Google to trick people into installing malware disguised as popular free software, such as Microsoft Teams, Adobe Reader and Discord. In those cases, the dropper is the hidden component bundled with the legitimate software that quietly loads malware onto the user’s system.
Droppers remain such a critical, human-intensive component of nearly all major cybercrime enterprises that the most popular have turned into full-fledged cybercrime services of their own. By targeting the individuals who develop and maintain dropper services and their supporting infrastructure, authorities are hoping to disrupt multiple cybercriminal operations simultaneously.
According to a statement from the European police agency Europol, between May 27 and May 29, 2024 authorities arrested four suspects (one in Armenia and three in Ukraine), and disrupted or took down more than 100 Internet servers in Bulgaria, Canada, Germany, Lithuania, the Netherlands, Romania, Switzerland, the United Kingdom, United States and Ukraine. Authorities say they also seized more than 2,000 domain names that supported dropper infrastructure online.
In addition, Europol released information on eight fugitives suspected of involvement in dropper services and who are wanted by Germany; their names and photos were added to Europol’s “Most Wanted” list on 30 May 2024.
A “wanted” poster including the names and photos of eight suspects wanted by Germany and now on Europol’s “Most Wanted” list.
“It has been discovered through the investigations so far that one of the main suspects has earned at least EUR 69 million in cryptocurrency by renting out criminal infrastructure sites to deploy ransomware,” Europol wrote. “The suspect’s transactions are constantly being monitored and legal permission to seize these assets upon future actions has already been obtained.”
There have been numerous such coordinated malware takedown efforts in the past, and yet often the substantial amount of coordination required between law enforcement agencies and cybersecurity firms involved is not sustained after the initial disruption and/or arrests.
But a new website erected to detail today’s action — operation-endgame.com — makes the case that this time is different, and that more takedowns and arrests are coming. “Operation Endgame does not end today,” the site promises. “New actions will be announced on this website.”
A message on operation-endgame.com promises more law enforcement and disruption actions.
Perhaps in recognition that many of today’s top cybercriminals reside in countries that are effectively beyond the reach of international law enforcement, actions like Operation Endgame seem increasingly focused on mind games — i.e., trolling the hackers.
Writing in this month’s issue of Wired, Matt Burgess makes the case that Western law enforcement officials have turned to psychological measures as an added way to slow down Russian hackers and cut to the heart of the sweeping cybercrime ecosystem.
“These nascent psyops include efforts to erode the limited trust the criminals have in each other, driving subtle wedges between fragile hacker egos, and sending offenders personalized messages showing they’re being watched,” Burgess wrote.
When authorities in the U.S. and U.K. announced in February 2024 that they’d infiltrated and seized the infrastructure used by the infamous LockBit ransomware gang, they borrowed the existing design of LockBit’s victim shaming website to link instead to press releases about the takedown, and included a countdown timer that was eventually replaced with the personal details of LockBit’s alleged leader.
The feds used the existing design on LockBit’s victim shaming website to feature press releases and free decryption tools.
The Operation Endgame website also includes a countdown timer, which serves to tease the release of several animated videos that mimic the same sort of flashy, short advertisements that established cybercriminals often produce to promote their services online. At least two of the videos include a substantial amount of text written in Russian.
The coordinated takedown comes on the heels of another law enforcement action this week against what the director of the FBI called “likely the world’s largest botnet ever.” On Wednesday U.S. Department of Justice (DOJ) announced the arrest of YunHe Wang, the alleged operator of the ten-year-old online anonymity service 911 S5. The government also seized 911 S5’s domains and online infrastructure, which allegedly turned computers running various “free VPN” products into Internet traffic relays that facilitated billions of dollars in online fraud and cybercrime.
Microsoft today released updates to fix more than 60 security holes in Windows computers and supported software, including two “zero-day” vulnerabilities in Windows that are already being exploited in active attacks. There are also important security patches available for macOS and Adobe users, and for the Chrome Web browser, which just patched its own zero-day flaw.
First, the zero-days. CVE-2024-30051 is an “elevation of privilege” bug in a core Windows library. Satnam Narang at Tenable said this flaw is being used as part of post-compromise activity to elevate privileges as a local attacker.
“CVE-2024-30051 is used to gain initial access into a target environment and requires the use of social engineering tactics via email, social media or instant messaging to convince a target to open a specially crafted document file,” Narang said. “Once exploited, the attacker can bypass OLE mitigations in Microsoft 365 and Microsoft Office, which are security features designed to protect end users from malicious files.”
Kaspersky Lab, one of two companies credited with reporting exploitation of CVE-2024-30051 to Microsoft, has published a fascinating writeup on how they discovered the exploit in a file shared with Virustotal.com.
Kaspersky said it has since seen the exploit used together with QakBot and other malware. Emerging in 2007 as a banking trojan, QakBot (a.k.a. Qbot and Pinkslipbot) has morphed into an advanced malware strain now used by multiple cybercriminal groups to prepare newly compromised networks for ransomware infestations.
CVE-2024-30040 is a security feature bypass in MSHTML, a component that is deeply tied to the default Web browser on Windows systems. Microsoft’s advisory on this flaw is fairly sparse, but Kevin Breen from Immersive Labs said this vulnerability also affects Office 365 and Microsoft Office applications.
“Very little information is provided and the short description is painfully obtuse,” Breen said of Microsoft’s advisory on CVE-2024-30040.
The only vulnerability fixed this month that earned Microsoft’s most-dire “critical” rating is CVE-2024-30044, a flaw in Sharepoint that Microsoft said is likely to be exploited. Tenable’s Narang notes that exploitation of this bug requires an attacker to be authenticated to a vulnerable SharePoint Server with Site Owner permissions (or higher) first and to take additional steps in order to exploit this flaw, which makes this flaw less likely to be widely exploited as most attackers follow the path of least resistance.
Five days ago, Google released a security update for Chrome that fixes a zero-day in the popular browser. Chrome usually auto-downloads any available updates, but it still may require a complete restart of the browser to install them. If you use Chrome and see a “Relaunch to update” message in the upper right corner of the browser, it’s time to restart.
Apple has just shipped macOS Sonoma 14.5 update, which includes nearly two dozen security patches. To ensure your Mac is up-to-date, go to System Settings, General tab, then Software Update and follow any prompts.
Finally, Adobe has critical security patches available for a range of products, including Acrobat, Reader, Illustrator, Adobe Substance 3D Painter, Adobe Aero, Adobe Animate and Adobe Framemaker.
Regardless of whether you use a Mac or Windows system (or something else), it’s always a good idea to backup your data and or system before applying any security updates. For a closer look at the individual fixes released by Microsoft today, check out the complete list over at the SANS Internet Storm Center. Anyone in charge of maintaining Windows systems in an enterprise environment should keep an eye on askwoody.com, which usually has the scoop on any wonky Windows patches.
Update, May 15, 8:28 a.m.: Corrected misattribution of CVE-2024-30051.
Last week, the United States joined the U.K. and Australia in sanctioning and charging a Russian man named Dmitry Yuryevich Khoroshev as the leader of the infamous LockBit ransomware group. LockBit’s leader “LockBitSupp” claims the feds named the wrong guy, saying the charges don’t explain how they connected him to Khoroshev. This post examines the activities of Khoroshev’s many alter egos on the cybercrime forums, and tracks the career of a gifted malware author who has written and sold malicious code for the past 14 years.
Dmitry Yuryevich Khoroshev. Image: treasury.gov.
On May 7, the U.S. Department of Justice indicted Khoroshev on 26 criminal counts, including extortion, wire fraud, and conspiracy. The government alleges Khoroshev created, sold and used the LockBit ransomware strain to personally extort more than $100 million from hundreds of victim organizations, and that LockBit as a group extorted roughly half a billion dollars over four years.
Federal investigators say Khoroshev ran LockBit as a “ransomware-as-a-service” operation, wherein he kept 20 percent of any ransom amount paid by a victim organization infected with his code, with the remaining 80 percent of the payment going to LockBit affiliates responsible for spreading the malware.
Financial sanctions levied against Khoroshev by the U.S. Department of the Treasury listed his known email and street address (in Voronezh, in southwest Russia), passport number, and even his tax ID number (hello, Russian tax authorities). The Treasury filing says Khoroshev used the emails sitedev5@yandex.ru, and khoroshev1@icloud.com.
According to DomainTools.com, the address sitedev5@yandex.ru was used to register at least six domains, including a Russian business registered in Khoroshev’s name called tkaner.com, which is a blog about clothing and fabrics.
A search at the breach-tracking service Constella Intelligence on the phone number in Tkaner’s registration records — 7.9521020220 — brings up multiple official Russian government documents listing the number’s owner as Dmitri Yurievich Khoroshev.
Another domain registered to that phone number was stairwell[.]ru, which at one point advertised the sale of wooden staircases. Constella finds that the email addresses webmaster@stairwell.ru and admin@stairwell.ru used the password 225948.
DomainTools reports that stairwell.ru for several years included the registrant’s name as “Dmitrij Ju Horoshev,” and the email address pin@darktower.su. According to Constella, this email address was used in 2010 to register an account for a Dmitry Yurievich Khoroshev from Voronezh, Russia at the hosting provider firstvds.ru.
Image: Shutterstock.
Cyber intelligence firm Intel 471 finds that pin@darktower.ru was used by a Russian-speaking member called Pin on the English-language cybercrime forum Opensc. Pin was active on Opensc around March 2012, and authored 13 posts that mostly concerned data encryption issues, or how to fix bugs in code.
Other posts concerned custom code Pin claimed to have written that would bypass memory protections on Windows XP and Windows 7 systems, and inject malware into memory space normally allocated to trusted applications on a Windows machine.
Pin also was active at that same time on the Russian-language security forum Antichat, where they told fellow forum members to contact them at the ICQ instant messenger number 669316.
A search on the ICQ number 669316 at Intel 471 shows that in April 2011, a user by the name NeroWolfe joined the Russian cybercrime forum Zloy using the email address d.horoshev@gmail.com, and from an Internet address in Voronezh, RU.
Constella finds the same password tied to webmaster@stairwell.ru (225948) was used by the email address 3k@xakep.ru, which Intel 471 says was registered to more than a dozen NeroWolfe accounts across just as many Russian cybercrime forums between 2011 and 2015.
NeroWolfe’s introductory post to the forum Verified in Oct. 2011 said he was a system administrator and C++ coder.
“Installing SpyEYE, ZeuS, any DDoS and spam admin panels,” NeroWolfe wrote. This user said they specialize in developing malware, creating computer worms, and crafting new ways to hijack Web browsers.
“I can provide my portfolio on request,” NeroWolfe wrote. “P.S. I don’t modify someone else’s code or work with someone else’s frameworks.”
In April 2013, NeroWolfe wrote in a private message to another Verified forum user that he was selling a malware “loader” program that could bypass all of the security protections on Windows XP and Windows 7.
“The access to the network is slightly restricted,” NeroWolfe said of the loader, which he was selling for $5,000. “You won’t manage to bind a port. However, it’s quite possible to send data. The code is written in C.”
In an October 2013 discussion on the cybercrime forum Exploit, NeroWolfe weighed in on the karmic ramifications of ransomware. At the time, ransomware-as-a-service didn’t exist yet, and many members of Exploit were still making good money from “lockers,” relatively crude programs that locked the user out of their system until they agreed to make a small payment (usually a few hundred dollars via prepaid Green Dot cards).
Lockers, which presaged the coming ransomware scourge, were generally viewed by the Russian-speaking cybercrime forums as harmless moneymaking opportunities, because they usually didn’t seek to harm the host computer or endanger files on the system. Also, there were still plenty of locker programs that aspiring cybercriminals could either buy or rent to make a steady income.
NeroWolfe reminded forum denizens that they were just as vulnerable to ransomware attacks as their would-be victims, and that what goes around comes around.
“Guys, do you have a conscience?,” NeroWolfe wrote. “Okay, lockers, network gopstop aka business in Russian. The last thing was always squeezed out of the suckers. But encoders, no one is protected from them, including the local audience.”
If Khoroshev was ever worried that someone outside of Russia might be able to connect his early hacker handles to his real life persona, that’s not clear from reviewing his history online. In fact, the same email address tied to so many of NeroWolfe’s accounts on the forums — 3k@xakep.ru — was used in 2011 to create an account for a Dmitry Yurevich Khoroshev on the Russian social media network Vkontakte.
NeroWolfe seems to have abandoned all of his forum accounts sometime in 2016. In November 2016, an exploit[.]ru member filed an official complaint against NeroWolfe, saying NeroWolfe had been paid $2,000 to produce custom code but never finished the project and vanished.
It’s unclear what happened to NeroWolfe or to Khoroshev during this time. Maybe he got arrested, or some close associates did. Perhaps he just decided it was time to lay low and hit the reset on his operational security efforts, given his past failures in this regard. It’s also possible NeroWolfe landed a real job somewhere for a few years, fathered a child, and/or had to put his cybercrime career on hold.
Or perhaps Khoroshev saw the coming ransomware industry for the endless pot of gold that it was about to become, and then dedicated himself to working on custom ransomware code. That’s what the government believes.
The indictment against Khoroshev says he used the hacker nickname Putinkrab, and Intel 471 says this corresponds to a username that was first registered across three major Russian cybercrime forums in early 2019.
KrebsOnSecurity could find no obvious connections between Putinkrab and any of Khoroshev’s older identities. However, if Putinkrab was Khoroshev, he would have learned from his past mistakes and started fresh with a new identity (which he did). But also, it is likely the government hasn’t shared all of the intelligence it has collected against him (more on that in a bit).
Putinkrab’s first posts on the Russian cybercrime forums XSS, Exploit and UFOLabs saw this user selling ransomware source code written in C.
A machine-translated ad for ransomware source code from Putinkrab on the Russian language cybercrime forum UFOlabs in 2019. Image: Ke-la.com.
In April 2019, Putkinkrab offered an affiliate program that would run on top of his custom-made ransomware code.
“I want to work for a share of the ransoms: 20/80,” Putinkrab wrote on Exploit. “20 percent is my percentage for the work, you get 80% of the ransoms. The percentage can be reduced up to 10/90 if the volumes are good. But now, temporarily, until the service is fully automated, we are working using a different algorithm.”
Throughout the summer of 2019, Putinkrab posted multiple updates to Exploit about new features being added to his ransomware strain, as well as novel evasion techniques to avoid detection by security tools. He also told forum members he was looking for investors for a new ransomware project based on his code.
In response to an Exploit member who complained that the security industry was making it harder to profit from ransomware, Putinkrab said that was because so many cybercriminals were relying on crappy ransomware code.
“The vast majority of top antiviruses have acquired behavioral analysis, which blocks 95% of crypto-lockers at their root,” Putinkrab wrote. “Cryptolockers made a lot of noise in the press, but lazy system administrators don’t make backups after that. The vast majority of cryptolockers are written by people who have little understanding of cryptography. Therefore, decryptors appear on the Internet, and with them the hope that files can be decrypted without paying a ransom. They just sit and wait. Contact with the owner of the key is lost over time.”
Putinkrab said he had every confidence his ransomware code was a game-changer, and a huge money machine.
“The game is just gaining momentum,” Putinkrab wrote. “Weak players lose and are eliminated.”
The rest of his response was structured like a poem:
“In this world, the strongest survive.
Our life is just a struggle.
The winner will be the smartest,
Who has his head on his shoulders.”
Putinkrab’s final post came on August 23, 2019. The Justice Department says the LockBit ransomware affiliate program was officially launched five months later. From there on out, the government says, Khoroshev adopted the persona of LockBitSupp. In his introductory post on Exploit, LockBit’s mastermind said the ransomware strain had been in development since September 2019.
The original LockBit malware was written in C (a language that NeroWolfe excelled at). Here’s the original description of LockBit, from its maker:
“The software is written in C and Assembler; encryption is performed through the I/O Completion Port; there is a port scanning local networks and an option to find all DFS, SMB, WebDAV network shares, an admin panel in Tor, automatic test decryption; a decryption tool is provided; there is a chat with Push notifications, a Jabber bot that forwards correspondence and an option to terminate services/processes in line which prevent the ransomware from opening files at a certain moment. The ransomware sets file permissions and removes blocking attributes, deletes shadow copies, clears logs and mounts hidden partitions; there is an option to drag-and-drop files/folders and a console/hidden mode. The ransomware encrypts files in parts in various places: the larger the file size, the more parts there are. The algorithms used are AES + RSA.
You are the one who determines the ransom amount after communicating with the victim. The ransom paid in any currency that suits you will be transferred to your wallets. The Jabber bot serves as an admin panel and is used for banning, providing decryption tools, chatting – Jabber is used for absolutely everything.”
Does the above timeline prove that NeroWolfe/Khoroshev is LockBitSupp? No. However, it does indicate Khoroshev was for many years deeply invested in countless schemes involving botnets, stolen data, and malware he wrote that others used to great effect. NeroWolfe’s many private messages from fellow forum members confirm this.
NeroWolfe’s specialty was creating custom code that employed novel stealth and evasion techniques, and he was always quick to volunteer his services on the forums whenever anyone was looking help on a malware project that called for a strong C or C++ programmer.
Someone with those qualifications — as well as demonstrated mastery of data encryption and decryption techniques — would have been in great demand by the ransomware-as-a-service industry that took off at around the same time NeroWolfe vanished from the forums.
Someone like that who is near or at the top of their game vis-a-vis their peers does not simply walk away from that level of influence, community status, and potential income stream unless forced to do so by circumstances beyond their immediate control.
It’s important to note that Putinkrab didn’t just materialize out of thin air in 2019 — suddenly endowed with knowledge about how to write advanced, stealthy ransomware strains. That knowledge clearly came from someone who’d already had years of experience building and deploying ransomware strains against real-life victim organizations.
Thus, whoever Putinkrab was before they adopted that moniker, it’s a safe bet they were involved in the development and use of earlier, highly successful ransomware strains. One strong possible candidate is Cerber ransomware, the most popular and effective affiliate program operating between early 2016 and mid-2017. Cerber thrived because it emerged as an early mover in the market for ransomware-as-a-service offerings.
In February 2024, the FBI seized LockBit’s cybercrime infrastructure on the dark web, following an apparently lengthy infiltration of the group’s operations. The United States has already indicted and sanctioned at least five other alleged LockBit ringleaders or affiliates, so presumably the feds have been able to draw additional resources from those investigations.
Also, it seems likely that the three national intelligence agencies involved in bringing these charges are not showing all of their cards. For example, the Treasury documents on Khoroshev mention a single cryptocurrency address, and yet experts interviewed for this story say there are no obvious clues connecting this address to Khoroshev or Putinkrab.
But given that LockBitSupp has been actively involved in Lockbit ransomware attacks against organizations for four years now, the government almost certainly has an extensive list of the LockBit leader’s various cryptocurrency addresses — and probably even his bank accounts in Russia. And no doubt the money trail from some of those transactions was traceable to its ultimate beneficiary (or close enough).
Not long after Khoroshev was charged as the leader of LockBit, a number of open-source intelligence accounts on Telegram began extending the information released by the Treasury Department. Within hours, these sleuths had unearthed more than a dozen credit card accounts used by Khoroshev over the past decade, as well as his various bank account numbers in Russia.
The point is, this post is based on data that’s available to and verifiable by KrebsOnSecurity. Woodward & Bernstein’s source in the Watergate investigation — Deep Throat — famously told the two reporters to “follow the money.” This is always excellent advice. But these days, that can be a lot easier said than done — especially with people who a) do not wish to be found, and b) don’t exactly file annual reports.
Related tags
FreshRSS