Twenty-four prisoners were freed today in an international prisoner swap between Russia and Western countries. Among the eight Russians repatriated were five convicted cybercriminals. In return, Russia has reportedly released 16 prisoners, including Wall Street Journal reporter Evan Gershkovich and ex-U.S. Marine Paul Whelan.

Among the more notable Russian hackers released in the prisoner swap is Roman Seleznev, 40, who was sentenced in 2017 to 27 years in prison for racketeering convictions tied to a lengthy career in stealing and selling payment card data. Seleznev earned this then-record sentence by operating some of the underground’s most bustling marketplaces for stolen card data.

Roman Seleznev, pictured with bundles of cash. Image: US DOJ.

Once known by the hacker handles “Track2,” “Bulba” and “nCux,” Seleznev is the son of Valery Seleznev, a prominent member of the Russian parliament who is considered an ally of Vladimir Putin. U.S. prosecutors showed that for years Vinnik stayed a step ahead of the law by tapping into contacts at the Russian FSB, the successor agency to the Soviet KGB, and by periodically changing hacker handles.

But in 2014 Seleznev was captured by U.S. Secret Service agents, who had zeroed in on Seleznev’s posh vacation spot in The Maldives. At the time, the South Asian island country was a popular destination for Eastern Europe-based cybercriminals, who viewed it as beyond the reach of U.S. law enforcement.

In addition to receiving a record prison sentence, Seleznev was ordered to pay more than $50 million in restitution to his victims. That loss amount equaled the total losses inflicted by Seleznev’s various carding stores, and other thefts attributed to members of the hacking forum carder[.]su, a bustling cybercrime community of which Seleznev was a leading organizer.

Also released in the prisoner swap was Vladislav Klyushin, a 42-year-old Muscovite sentenced in September 2023 to nine years in prison for what U.S. prosecutors called a “$93 million hack-to-trade conspiracy.” Klyushin and his crew hacked into companies and used information stolen in those intrusions to make illegal stock trades.

Klyushin likewise was arrested while vacationing abroad: The Associated Press reported that Klyushin was captured in Switzerland after arriving on a private jet, and just before he and his party were about to board a helicopter to whisk them to a nearby ski resort.

A passport photo of Klyushin. Image: USDOJ.

Klyushin is the owner of M-13, a Russian technology company that contracts with the Russian government. According to prosecutors, M-13 offered penetration testing and “advanced persistent threat (APT) emulation.” As part of his guilty plea, Klyushin was also ordered to forfeit $34 million, and to pay restitution in an amount that was to be determined.

The U.S. government says four of Klyushin’s alleged co-conspirators remain at large, including Ivan Ermakov, who was among 12 Russians charged in 2018 with hacking into key Democratic Party email accounts.

Russia also welcomed home one of its most accomplished money launderers. Alexander Vinnik, 44, who was one of the operators of BTC-e, a large cryptocurrency exchange that helped launder crime proceeds tied to various ransomware groups.

In 2017, U.S. authorities seized BTC-e, charging Vinnik with operating an international money laundering scheme that included some 850,000 bitcoins stolen from cryptocurrency exchange Mt. Gox. In May 2024, Vinnik pleaded guilty to laundering more than $9 billion.

Vladimir Dunaev, 40, was one of the masterminds behind the Trickbot trojan, a crimeware-as-a-service platform that for many years was used by Russian cybercrime groups to install ransomware and siphon data from victims. Duanev was sentenced in January 2024 to five years and four months in prison.

The fifth convicted Russian sent back home this week is Maxim Marchenko, 52, who pleaded guilty in February 2024 to illicitly procuring large quantities of U.S.-made microelectronics on behalf of Russian clients in support of the war on Ukraine.

Marchenko admitted setting up a number of shell companies based in Hong Kong that were used to acquire the technology products that have military-grade applications, such as rifle scopes, night vision goggles and thermal optics.

Among the Americans freed by Russia were Wall Street Journal reporter Evan Gershkovich, 32, who has spent the last 16 months in a Russian prison on spying charges. Also released was Alsu Kurmasheva, 47, a Russian American editor for Radio Free Europe/Radio Liberty who was arrested last year; and Paul Whelan, 54, a former U.S. Marine arrested in 2018 and accused of spying.

The New York Times reports several others freed by Russia were German nationals, including German Moyzhes, a lawyer who was helping Russians obtain residence permits in Germany and other E.U. countries. The Times says Slovenia, Norway and Poland released four people accused of being Russian spies.

Reuters reports that Germany released Vadim Krasikov, an FSB colonel serving a life sentence there for murdering an exiled Chechen-Georgian dissident in a Berlin park.

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.

Authorities in the United States and United Kingdom today levied financial sanctions against seven men accused of operating “Trickbot,” a cybercrime-as-a-service platform based in Russia that has enabled countless ransomware attacks and bank account takeovers since its debut in 2016. The U.S. Department of the Treasury says the Trickbot group is associated with Russian intelligence services, and that this alliance led to the targeting of many U.S. companies and government entities.

Initially a stealthy trojan horse program delivered via email and used to steal passwords, Trickbot evolved into “a highly modular malware suite that provides the Trickbot Group with the ability to conduct a variety of illegal cyber activities, including ransomware attacks,” the Treasury Department said.

A spam email from 2020 containing a Trickbot-infected attachment. Image: Microsoft.

“During the height of the COVID-19 pandemic in 2020, Trickbot targeted hospitals and healthcare centers, launching a wave of ransomware attacks against hospitals across the United States,” the sanctions notice continued. “In one of these attacks, the Trickbot Group deployed ransomware against three Minnesota medical facilities, disrupting their computer networks and telephones, and causing a diversion of ambulances. Members of the Trickbot Group publicly gloated over the ease of targeting the medical facilities and the speed with which the ransoms were paid to the group.”

Only one of the men sanctioned today is known to have been criminally charged in connection with hacking activity. According to the Treasury Department, the alleged senior leader of the Trickbot group is 34-year-old Russian national Vitaly “Bentley” Kovalev.

A New Jersey grand jury indicted Kovalev in 2012 after an investigation by the U.S. Secret Service determined that he ran a massive “money mule” scheme, which used phony job offers to trick people into laundering money stolen from hacked small to mid-sized businesses in the United States. The 2012 indictment against Kovalev relates to cybercrimes he allegedly perpetrated prior to the creation of Trickbot.

BOTNET, THE MOVIE

In 2015, Kovalev reportedly began filming a movie in Russia about cybercrime called “Botnet.” According to a 2016 story from Forbes.ru, Botnet’s opening scene was to depict the plight of Christina Svechinskaya, a Russian student arrested by FBI agents in September 2010.

Christina Svechinskaya, a money mule hired by Bentley who was arrested by the FBI in 2010.

Svechinskaya was one of Bentley’s money mules, most of whom were young Russian students on summer travel visas in the United States. She was among 37 alleged mules charged with aiding an international cybercrime operation — basically, setting up phony corporate bank accounts for the sole purpose of laundering stolen funds.

Although she possessed no real hacking skills, Svechinskaya’s mugshot and social media photos went viral online and she was quickly dubbed “the world’s sexiest computer hacker” by the tabloids.

Kovalev’s Botnet film project was disrupted after Russian authorities raided the film production company’s offices as part of a cybercrime investigation. In February 2016, Reuters reported that the raid was connected to a crackdown on “Dyre,” a sophisticated trojan that U.S. federal investigators say was the precursor to the Trickbot malware. The Forbes.ru article cited sources close to the investigation who said the film studio was operating as a money-laundering front for the cybercrooks behind Dyre.

TREASON

But shifting political winds in Russia would soon bring high treason charges against three of the Russian cybercrime investigators tied to the investigation into the film studio. In a major shakeup in 2017, the Kremlin levied treason charges against Sergey Mikhaylov, then deputy chief of Russia’s top anti-cybercrime unit.

Also charged with treason was Ruslan Stoyanov, then a senior employee at Russian security firm Kaspersky Lab [the Forbes.ru report from 2016 said investigators from Mikhaylov’s unit and Kaspersky Lab were present at the film company raid].

Russian media outlets have speculated that the men were accused of treason for helping American cybercrime investigators pursue top Russian hackers. However, the charges against both men were classified and have never been officially revealed. After their brief, closed trial, both men were convicted of treason. Mikhaylov was given a 22 year prison sentence; Stoyanov was sentenced to 14 years in prison.

In September 2021, the Kremlin issued treason charges against Ilya Sachkov, formerly head of the cybersecurity firm Group-IB. According to Reuters, Sachkov and his company were hired by the film studio “to advise the Botnet director and writers on the finer points of cybercrime.” Sachkov remains imprisoned in Russia pending his treason trial.

A WELL-OILED CYBERCRIME MACHINE

Trickbot was heavily used by Conti and Ryuk, two of Russia’s most ruthless and successful ransomware groups. Blockchain analysis firm Chainalysis estimates that in 2021 alone, Conti extorted more than USD $100 million from its hacking victims; Chainalysis estimates Ryuk extorted more than USD $150 million from its ransomware victims.

The U.S. cybersecurity firm CrowdStrike has long tracked the activities of Trickbot, Ryuk and Conti under the same moniker — “Wizard Spider” — which CrowdStrike describes as “a Russia-nexus cybercriminal group behind the core development and distribution of a sophisticated arsenal of criminal tools, that allow them to run multiple different types of operations.”

“CrowdStrike Intelligence has observed WIZARD SPIDER targeting multiple countries and industries such as academia, energy, financial services, government, and more,” said Adam Meyers, head of intelligence at CrowdStrike.

This is not the U.S. government’s first swipe at the Trickbot group. In early October 2020, KrebsOnSecurity broke the news that someone had launched a series of coordinated attacks designed to disrupt the Trickbot botnet. A week later, The Washington Post ran a story saying the attack on Trickbot was the work of U.S. Cyber Command, a branch of the Department of Defense headed by the director of the U.S. National Security Agency (NSA).

Days after Russia invaded Ukraine in February 2022, a Ukrainian researcher leaked several years of internal chat logs from the Conti ransomware gang. Those candid conversations offer a fascinating view into the challenges of running a sprawling criminal enterprise with more than 100 salaried employees. They also showed that Conti enjoyed protection from prosecution by Russian authorities, as long as the hacker group took care not to target Russian organizations.

In addition, the leaked Conti chats confirmed there was considerable overlap in the operation and leadership of Conti, Trickbot and Ryuk.

CrowdStrike’s Meyers said while Wizard Spider operations have significantly reduced following the demise of Conti in June 2022, today’s sanctions will likely cause temporary disruptions for the cybercriminal group while they look for ways to circumvent the financial restrictions — which make it illegal to transact with or hold the assets of sanctioned persons or entities.

“Often, when cybercriminal groups are disrupted, they will go dark for a time only to rebrand under a new name,” Meyers said.

The prosecution of Kovalev and six other men named in today’s sanctions is being handled by the U.S. Attorney’s Office in New Jersey. A copy of the now-unsealed 2012 indictment of Kovalev is here (PDF).