The man arrested in Armenia last week for allegedly operating the massive “Bredolab” botnet — a network of some 30 million hacked Microsoft Windows PCs that were rented out to cyber crooks — appears to have generated much of his clientele as an affiliate of Spamit.com, the global spamming operation whose members are blamed for sending a majority of the world’s pharmaceutical spam.
Armenian authorities arrested 27-year-old Georg Avanesov on suspicion of being the curator of Bredolab, a botnet that infected an estimated 3 million PCs per month through virus-laden e-mails and booby-trapped Web sites. The arrest resulted from a joint investigation between Armenian police and cyber sleuths in the Netherlands, whose ISPs were home to at least 143 servers used to direct the botnet’s activities. In tandem with the arrest and the unplugging of those servers, Dutch service providers began redirecting local Internet users to a disinfection and cleanup page if their PCs showed signs of Bredolab infections.
Investigators allege that Avanesov made up to US$139,000 each month renting the botnet to criminals who used it for sending spam and for installing password-stealing malicious software. Avanesov, who is thought to have made millions over a career spanning more than a decade, was arrested after hopping a flight from Moscow to his home in Yerevan, Armenia’s capital.
Pim Takkenberg, team leader for the Netherlands Police Agency’s High Tech Crime Unit, said Avanesov frequently used the hacker aliases “padonaque” and “Atata,” and for many years used the e-mail address “[email protected]” The domain padonaque.info has long been associated with a variety of malicious software families, and the malware that once called home to it reflects the varied clientele that investigators say Avanesov attracted over the years.
According to information obtained by KrebsOnSecurity, that e-mail address and Atata nickname were used to register at least two affiliate accounts at spamit.com. With online pharmacy sales generating him less than $2,000 each month over the last several years, Atata wasn’t pulling in anywhere near as much as the top earners in the program, some of whom earned six figures monthly promoting counterfeit pills via spam. But Takkenberg and others say it is likely that Atata used Spamit as a place to sign up new customers who were interesting in renting his Bredolab botnet to promote their pharmacy sites.
“The main thing he did was build this botnet — mainly using a lot of hacked Web sites,” Takkenberg said. “Then he sold parts of that botnet to other clients of his, who could upload their own malware loaders, FTP [password] grabbers, whatever they wanted.”
For example, one multi-part Bredolab binary released in December 2009 that was poorly detected by most of the major anti-virus firms contained a malicious component bearing his nickname (“atata.exe”), in addition to malicious payload files that employed the nicknames of fellow spamit.com affiliates, including “Birdie” and “Corago”.
Evidence of the connection between Bredolab and Spamit.com members surfaced as Russian investigators announced they had filed criminal charges against Igor Gusev, a man some have long suspected of masterminding Glavmed.com, the world’s largest affiliate program for promoting online pharmacies. As KrebsOnSecurity.com first noted several weeks ago, Spamit.com — which spam experts say was an integral sub-group of Glavmed — closed its doors at the end of September, causing a large but temporary decline in the amount of junk e-mail sent worldwide.
For his part, Gusev has denied any affiliation with spamming, and told The Moscow News and another Russian daily that the man responsible for bringing false charges against him was none other than his arch nemesis Pavel Vrublevsky, the founder of Russian payment processing firm Chronopay and someone I have written about at length on this blog and while at The Washington Post. In a blog purportedly written by Gusev himself, the alleged Glavmed/Spamit chief says he and Vrublevsky used to be business partners when Chronopay was in its infancy.
Asked for comment, Vrublevsky said, “I can not comment on anything Gusev is saying as I think he has to respond to his own accusations first.”