Virus Prevalence - February 2012

Virus NamePrevalencePercentage
Autorun8.93 %
Exploit-misc5.99 %
Heuristic/generic5.63 %
Heuristic/generic5.54 %
Crack/Keygen5.48 %
Conficker/Downadup5.01 %
Sirefef4.67 %
Iframe-Exploit4.17 %
Adware-misc3.16 %
BHO/Toolbar-misc2.91 %
Agent2.67 %
Sality2.52 %
Injector2.40 %
Kryptik2.24 %
Downloader-misc2.23 %
LNK-Exploit1.95 %
Crypt1.70 %
Blacole1.60 %
AutoIt1.53 %
Virut1.45 %
Dofoil1.44 %
Freeware-downloader1.40 %
Encrypted/Obfuscated1.27 %
PDF-Exploit1.26 %
JS-Redir/Alescurf1.21 %
Redirector1.20 %
Dropper-misc1.14 %
FakeAV-Misc1.12 %
Backdoor-misc0.85 %
InstallCore0.84 %
VB0.84 %
Lethic0.83 %
Potentially Unwanted-misc0.80 %
WinWebSec0.74 %
Ramnit0.73 %
Tanatos0.71 %
Dorkbot0.61 %
Brontok/Rontokbro0.61 %
Vobfus0.57 %
Themida0.54 %
Zbot0.54 %
OpenConnection0.48 %
FakeAlert/Renos0.48 %
Wimad0.45 %
Jeefo0.44 %
Mdrop0.43 %
Proxy-misc0.38 %
VMProtect0.37 %
Sohanad0.34 %
Nsanti0.33 %
MyWebSearch0.32 %
Mabezat0.32 %
OnlineGames0.31 %
Banload0.30 %
Qhost0.28 %
Snifula/Ursnif0.28 %
Suspect packers0.27 %
Delf0.24 %
Java-Classloader0.22 %
Alman0.19 %
Zwangi/Zwunzi0.18 %
Hoax0.18 %
Rogue-Registryfix0.17 %
Carberp0.17 %
Slugin0.15 %
Heuristic/generic0.14 %
HackTool0.14 %
Alureon/Olmarik0.12 %
Lineage/Magania0.11 %
Small0.11 %
ALS/Bursted0.10 %
Hupigon0.10 %
Chir0.09 %
KillAV0.08 %
Phishing-misc0.08 %
Navipromo/Skintrim0.07 %
Istbar/Swizzor/C2lop0.07 %
PEPatch0.07 %
Virtumonde/Vundo0.07 %
Elkern0.07 %
Host file0.07 %
Parite0.06 %
Bifrose/Pakes0.06 %
PolyCrypt0.04 %
Adload0.02 %

Background

The Virus Bulletin prevalence table is compiled monthly from virus reports received by Virus Bulletin; both directly, and from other companies who pass on their statistics.

Reports are included only if they are confirmed, and hence, in conjunction with the WildList, the prevalence table provides a useful indication of the relative prevalence of various virus found in the wild at the time.

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