Security experts in Poland on Thursday quietly seized domains used to control the Virut botnet, a huge army of hacked PCs that is custom-built to be rented out to cybercriminals. Read More ..
NASK, the domain registrar that operates the “.pl” Polish top-level domain registry, said that on Thursday it began assuming control over 23 .pl domains that were being used to operate the Virut network. The company has redirected traffic from those domains to sinkhole.cert.pl, a domain controlled by CERT Polska — an incident response team run by NASK. The company says it will be working with Internet service providers and security firms to help alert and clean up affected users.
“Since 2006, Virut has been one of the most disturbing threats active on the Internet,” CERT Polska wrote. “The scale of the phenomenon was massive: in 2012 for Poland alone, over 890 thousand unique IP addresses were reported to be infected by Virut.”
Some of the domains identified in the takedown effort — including ircgalaxy.pl and zief.pl — have been used as controllers for nearly half a decade. During that time, Virut has emerged as one of the most common and pestilent threats. Security giant Symantec recently estimated Virut’s size at 300,000 machines; Russian security firm Kaspersky said Virut was responsible for 5.5 percent of malware infections in the third quarter of 2012.