Virus Prevalence - 2013

Virus NamePrevalencePercentage
Heuristic/generic 8.72%
Adware-misc 8.45%
Autorun 7.14%
Java-Exploit 6.54%
BHO/Toolbar-misc 3.54%
Crypt/Kryptik 3.49%
Conficker/Downadup 3.29%
OneScan 3.27%
Iframe-Exploit 2.95%
Dorkbot 2.76%
Sirefef 2.74%
Agent 2.55%
Sality 2.36%
Potentially Unwanted-misc 2.31%
Injector 1.98%
Encrypted/Obfuscated 1.95%
Downloader-misc 1.62%
LNK-Exploit 1.58%
bProtector 1.33%
Ramnit 1.29%
Gamarue 1.14%
Virut 1.13%
Bundpil 1.02%
Zbot 0.99%
Crack/Keygen 0.98%
Wintrim 0.93%
Jeefo 0.91%
Somoto 0.90%
Brontok/Rontokbro 0.89%
Exploit-misc 0.87%
Blacole 0.76%
Dropper-misc 0.73%
Phishing-misc 0.70%
AutoIt 0.70%
Fareit 0.64%
Qhost 0.64%
Yontoo 0.60%
Tracur/Xulcache 0.55%
VB 0.53%
JS-Redir/Alescurf 0.51%
Tanatos 0.50%
FakeAV-Misc 0.49%
Banload 0.48%
Backdoor-misc 0.47%
Alureon/Olmarik 0.40%
HackTool 0.39%
Bumat 0.39%
Lethic 0.36%
Taterf 0.33%
Mabezat 0.32%
Nuqel 0.32%
Sohanad 0.31%
Wimad 0.30%
OnlineGames 0.30%
RogueSoftware-misc 0.29%
FakeAlert/Renos 0.28%
Small 0.27%
PSW-misc 0.24%
Rimecud 0.24%
PDF-Exploit 0.23%
Delf 0.23%
Navipromo/Skintrim 0.22%
Mdrop 0.22%
Reveton 0.21%
BitcoinMiner 0.21%
Meredrop 0.21%
Snifula/Ursnif 0.20%
Cutwail/Pandex/Pushdo 0.20%
Silly 0.19%
Dofoil 0.19%
Android-misc 0.18%
Freeware-downloader 0.18%
StartPage 0.17%
InstallCore 0.17%
Slugin 0.17%
FlyStudio 0.17%
Zwangi/Zwunzi 0.17%
VBInject 0.17%
Hamweq/Ircbrute 0.14%
Suspect packers 0.13%
KillAV 0.13%
Lollipop/MultiBundle 0.13%
Rogue-Registryfix 0.13%
Nsanti 0.13%
ALS/Bursted 0.13%
Chir 0.12%
Alman 0.11%
Yeltminky 0.11%
Scrinject 0.10%
Vercuser 0.09%
InstalleRex 0.09%
Loadmoney 0.09%
Themida 0.09%
Android-adware 0.08%
OpenConnection 0.08%
OpenCandy 0.08%
Urausy 0.07%
Hosts file 0.07%
Nitol 0.07%
Vobfus 0.06%

Background

Between 1995 and 2013, the Virus Bulletin prevalence table was compiled monthly from virus reports received by Virus Bulletin; both directly, and from other companies who passed on their statistics.

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