Virus Prevalence - July 2004

Virus NamePrevalencePercentageInstances
W32/Netsky76.91% 210441
W32/Bagle19.87% 54369
W32/Zafi1.46% 4005
W32/Dumaru0.47% 1293
W32/Klez0.14% 391
W32/Lovgate0.12% 326
W32/Mimail0.11% 300
W32/Mydoom0.1% 272
W32/Bugbear0.09% 257
W32/Sobig0.07% 190
W32/Swen0.07% 195
W32/Funlove0.07% 188
W32/Fizzer0.05% 125
Ebscan0.05% 149
W32/Valla0.04% 102
VBS/Redlof0.04% 108
W95/Spaces0.04% 104
W32/MyWife0.03% 82
W32/Magistr0.02% 50
W32/Parite0.02% 61
W32/Hybris0.02% 49
W32/BadTrans0.01% 21
W32/Gibe0.01% 25
Mumu0.01% 17
W32/Sober0.01% 22
W32/Mota0.01% 20
WYX0.01% 22
W32/MTX0.01% 14
W32/Korgo0.01% 34
XM/Laroux0.01% 29
W32/Lovsan0.01% 22
W32/Evaman0.01% 25
W32/Gaobot0.01% 33
W32/Yaha0.01% 39
W32/Kriz0% 1
Internal0% 2
Netlog0% 1
VBS/LoveLetter0% 5
Class0% 1
Concept0% 2
Form0% 5
W32/Galil0% 5
W97M/Marker0% 1
VBS/Soraci0% 5
W32/Spybot0% 1
W32/Nimda0% 7
IEStart0% 7
Inor0% 3
JS/Kak0% 10
W32/Jubon0% 1
W32/Mofei0% 3
W32/Lovelorn0% 13
W32/Opaserv0% 5
W32/Oror0% 2
KillCMOS0% 1
Cap0% 2
Cascade0% 3
W32/SirCam0% 4
W32/Zmist0% 1
W95/Dupator0% 1
Linux/LION0% 1
W32/Mabutu0% 11
W32/Frethem0% 3
W32/Torvil0% 5
W32/Randex0% 8
W32/Chir0% 4
Opey0% 2
Toraja0% 2
Pink0% 2
W32/Ganda0% 4
W32/Snapper0% 1
W32/Plexus0% 2
Krepper0% 1
Bablas0% 6
W32/Ska0% 5
SAMPO0% 1
W32/Sasser0% 12
W95/CIH0% 4
W32/FBound0% 2
W32/CodeRed0% 1
Divi0% 10
VBS/Psyme0% 11
Tristate0% 8
JS/Fortnight0% 11
W32/Deloder0% 2
W32/Antinny0% 6
SQL/Spider0% 1
W32/Bobax0% 1
Story0% 1
W32/Pate0% 1
W32/Tecata0% 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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