Kaspersky Lab Publishes Its Virus Chart

In the final month of 2007, the virus world ranged from 12-byte specimens to 85 MB giants, eleven-times-packed backdoors and familiar names across different categories.

Archive notice: This article was originally published on January 25, 2008. Links and embedded videos are preserved as part of the historical record.

Kaspersky Lab’s December 2007 ranking named Trojan.Win32.Qhost.sx the most “greedy” banking malware, targeting users of 42 banks. Trojan-Spy.Win32.Banker.bdn targeted customers of three electronic-money systems, while Trojan-Spy.Win32.Banbra.vf attacked three electronic key-card systems.

Backdoor.Win32.Hupigon.rc was described as the best-hidden threat because it was compressed by eleven different programs. The smallest, 12-byte Trojan.BAT.KillFiles.gm, deletes drive C; the largest, 85 MB Backdoor.Win32.Bifrose.adr, was nevertheless smaller than winners in earlier months. Backdoor.Win32.Hupigon.vqe deleted installed security-solution files and registry entries.

Email-Worm.Win32.Netsky.q again led email-traffic prevalence with 20.03 percent in December. Backdoor.Win32.Rbot appeared in 673 modifications, while Email-Worm.Win32.Zhelatin again led virus-and-worm families, nearly doubling to 69 members in two months.