Virus Prevalence - May 2004

Virus NamePrevalencePercentageInstances
W32/Netsky83.63% 248490
W32/Bagle11.67% 34677
W32/Sober2.91% 8657
W32/Dumaru0.71% 2109
W32/Klez0.22% 658
W32/Lovgate0.09% 269
W32/Mimail0.06% 184
W32/Funlove0.06% 178
W32/Fizzer0.05% 150
W32/Swen0.05% 136
VBS/Redlof0.05% 134
W32/Bugbear0.04% 114
W32/Valla0.04% 110
W32/Sobig0.03% 86
W32/Parite0.03% 82
W32/Hybris0.03% 77
VBS/Psyme0.03% 96
W32/Yaha0.03% 77
W32/MyWife0.02% 65
W32/Magistr0.02% 58
W32/Nachi0.02% 63
JS/Fortnight0.02% 49
W32/Mydoom0.02% 66
W95/Spaces0.02% 70
W32/BadTrans0.01% 37
W32/Gibe0.01% 27
W32/Elkern0.01% 35
W32/Mylife0.01% 42
W32/Nimda0.01% 27
WYX0.01% 23
W32/SirCam0.01% 18
XM/Laroux0.01% 21
W32/Ganda0.01% 17
W32/Sasser0.01% 29
W32/Gaobot0.01% 16
W32/Kriz0% 1
Netlog0% 2
VBS/LoveLetter0% 3
Form0% 4
W32/Goner0% 1
Mumu0% 7
W32/Aliz0% 1
W97M/Marker0% 6
VBS/Soraci0% 12
W32/Spybot0% 1
IEStart0% 2
Inor0% 6
JS/Kak0% 9
W95/Tenrobot0% 2
W32/Mofei0% 6
W32/Lovelorn0% 7
W32/Opaserv0% 4
W32/MTX0% 10
W32/Hawawi0% 1
W95/Whog0% 1
Cap0% 1
Cascade0% 1
W97M/Thus0% 1
W95/Dupator0% 1
W32/Torvil0% 10
W32/Randex0% 5
W32/Chir0% 6
W95/Kuang0% 1
Opey0% 1
VBSWG0% 1
W32/Sdbot0% 1
Bablas0% 1
W32/Lovsan0% 6
W32/Ska0% 10
W95/CIH0% 5
W32/FBound0% 3
W32/CodeRed0% 1
Divi0% 3
VBS/Haptime0% 1
Tristate0% 4
Pink,,30% 3
W32/Antinny0% 7
W32/Bobax0% 5
W32/Pate0% 4

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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