Kaspersky Lab Presents the Extreme Virus Rankings for February 2008

February brought more noteworthy new malicious programs. But the “classics” also defended their positions.

Archive notice: This article was originally published on March 23, 2008. Links and embedded videos are preserved as part of the historical record.

  1.    “Greediest Malware in Banking”: Trojan-Spy.Win32.Banker.cji directed its attention to 44 banks simultaneously in February.
    
  2.    “Greediest Malware for Electronic Money Systems”: Trojan-Spy.Win32.Banker.iei was designed by its author to attack customers of four electronic money systems at once.
    
  3.    “Greediest Malware for Key Cards”: Trojan-Spy.Win32.Banker.ibp is an exception in this position. It attacks customers of no fewer than five payment card systems, which does not happen very often. Representatives of this category usually attack no more than four targets simultaneously.
    
  4.    “Best-Hidden Malware”: Trojan-Dropper.Win32.Small.to was packed no fewer than ten times by various compression programs.
    
  5.    “Smallest Malware”: No malicious program in February was smaller than Trojan.BAT.KillWin.cs, at just 27 bytes. Small but nasty: the program destroyed the Windows operating system on the hard drive.
    
  6.    “Largest Malware”: The Haradong family, often found in this category, prevailed again in February. At 226 MB, the Trojan.Win32.Haradong.ct variant surpassed all other malicious programs.
    
  7.    “Most Hostile Malware”: One of the variants of Backdoor.Win32.Agobot.gen rendered home users' security programs unusable on a large scale. To do so, it destroyed files on the hard drive and processes in the computer's memory.
    
  8.    “Most Widespread Malware in Email Traffic”: Once again, Email-Worm.Win32.Netsky.q, which accounted for almost 36 percent of all malicious email traffic, takes first place.
    
  9.    “Most Widespread Trojan Family”: The Trojan-PSW.Win32.Onlinegames family was particularly active in February. New representatives appeared in no fewer than 1,092 variants.
    
  10.   “Most Widespread Virus and Worm Family”: In February, this was Email-Worm.Win32.Warezov, which produced 30 new variants.