Virus Prevalence - July 2005

Virus NamePrevalencePercentageInstances
W32/Netsky43.28% 44177
W32/Mytob35.7% 36438
W32/Mydoom6.22% 6345
W32/Zafi4.05% 4135
W32/Bagle2.7% 2760
W32/Bagz2.5% 2557
W32/Lovgate1.91% 1949
W32/Funlove0.54% 551
W32/Sdbot0.54% 554
W32/Mabutu0.33% 332
W32/Klez0.3% 303
W32/Bugbear0.24% 248
W32/Dumaru0.17% 170
W32/Mimail0.14% 140
W32/Pate0.14% 144
W32/Swen0.1% 104
W32/Valla0.1% 104
W32/MyWife0.09% 96
W32/Fizzer0.08% 77
W32/Mota0.07% 70
W32/Gibe0.06% 65
W32/Sober0.06% 57
VBS/Redlof0.06% 66
W32/Yaha0.06% 59
W95/Spaces0.06% 61
W32/Wurmark0.04% 37
W32/Reatle0.04% 38
W32/SirCam0.03% 26
W32/Agobot0.03% 32
W32/BadTrans0.02% 17
W32/Sobig0.02% 17
W32/Magistr0.02% 16
W32/Nachi0.02% 19
W32/Hybris0.02% 23
W32/Maslan0.02% 21
W32/Eyeveg0.02% 19
W32/Kriz0.01% 6
VBS/LoveLetter0.01% 10
Mumu0.01% 7
W32/Nimda0.01% 13
WYX0.01% 7
Stealus0.01% 9
W95/Tenrobot0.01% 15
Cap0.01% 6
XM/Laroux0.01% 9
W32/Torvil0.01% 13
W32/Randex0.01% 12
W32/Chir0.01% 9
W32/Ganda0.01% 12
W32/Plexus0.01% 6
W32/Evaman0.01% 6
VBS/Psyme0.01% 9
Tristate0.01% 8
JS/Fortnight0.01% 6
Internal0% 2
Netlog0% 1
Class0% 3
Relax0% 1
Concept0% 1
Onex0% 1
W32/Blaxe0% 1
W32/Wukill0% 3
NoClose0% 1
W32/Elkern0% 3
Form0% 5
VBS/Soraci0% 4
W32/Traxg0% 1
W32/Opaserv0% 1
W32/MTX0% 4
W32/Oror0% 2
W32/Korgo0% 2
W97M/Thus0% 4
W95/Dupator0% 2
W32/Myfip0% 1
Bablas0% 3
W32/Lovsan0% 2
W32/Ska0% 4
W32/Sasser0% 1
W32/SQLSlammer0% 1
W95/CIH0% 4
Divi0% 4
W97M/Verlor0% 2
W32/Antinny0% 5
W32/Bobax0% 2
AntiCMOS0% 1
Story0% 2

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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