Virus Prevalence - March 2005

Virus NamePrevalencePercentageInstances
W32/Netsky59.88% 35968
W32/Sober13.09% 7861
W32/Bagz11.93% 7167
W32/Bagle10% 6006
W32/Zafi1.34% 802
W32/Funlove0.84% 504
W32/Mydoom0.71% 427
W32/Dumaru0.62% 372
W32/Mabutu0.38% 227
W32/Lovgate0.26% 157
W32/Valla0.19% 114
W32/Klez0.17% 103
W32/Bugbear0.13% 81
W32/Pate0.09% 57
W95/Tenrobot0.06% 39
W32/MyWife0.05% 33
W95/Spaces0.04% 25
W32/Elkern0.03% 17
W32/Mytob0.03% 19
W32/Swen0.02% 14
W32/Myfip0.02% 13
VBS/Psyme0.02% 10
Class0.01% 4
Hiac0.01% 7
Lunch0.01% 6
W32/Ganda0.01% 4
W32/Kriz0% 2
W32/Sobig0% 2
W32/Mimail0% 2
W97M/Marker0% 1
VBS/Soraci0% 1
W32/Spybot0% 1
IEStart0% 3
Hope0% 2
W32/Korgo0% 1
W32/Magistr0% 2
VBS/Redlof0% 2
Cap0% 3
ColdApe0% 1
W32/Nachi0% 2
W32/Sdbot0% 2
W32/Hybris0% 1
W95/CIH0% 1
W32/Yaha0% 1
W32/Bobax0% 1
Story0% 1
W32/Navidad0% 1

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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