Heinz-Peter Bader / reuters Four individuals behind a "bulletproof hosting" site have pleaded guilty to US racketeering charges, the Department of Justice (DoJ) has announced. The service, designed to accommodate criminal activities and help clients evade detection, was founded by Russians Aleksandr Grichishkin and Andrei Skvortsov. The other two parties are Lithuanian Aleksandr Skorodumov and Estonian Pavel Stassi, who worked as admins on the site. The site provided multiple clients with the infrastructure to "gain access to victims’ computers, form botnets, and steal banking credentials for use in frauds" between 2008 and 2015, the DoJ wrote. "Malware hosted by the organization included Zeus, SpyEye, Citadel, and the Blackhole Exploit Kit, which rampantly attacked U.S. companies and financial institutions between 2009 and 2015 and caused or attempted to cause millions of dollars in losses to U.S. victims."