Virus Prevalence - August 2007

Virus NamePrevalencePercentageInstances
W32/Netsky40.85% 2269246
W32/Mytob18.26% 1014397
W32/Bagle11.52% 639923
W32/MyWife8.6% 477942
W32/Virut7.29% 405205
W32/Mydoom3.49% 194056
W32/Bagz2.04% 113515
W32/Zafi2.03% 112638
W32/Sality1.56% 86928
W32/Stration0.94% 52313
W32/Grum0.9% 49918
W32/Parite0.46% 25421
W32/Klez0.36% 19926
W32/SirCam0.24% 13606
W32/CTX0.17% 9402
W32/Tenga0.13% 7045
W32/Mabutu0.12% 6580
W32/Jeefo0.1% 5306
W32/Yaha0.1% 5305
W32/Funlove0.08% 4464
VBS/Redlof0.07% 4107
W32/Looked0.06% 3110
W32/Womble0.05% 2849
W32/Sober0.04% 2017
W32/Spybot0.04% 2003
W32/Allaple0.04% 2210
W32/VB0.04% 2433
W32/Bugbear0.03% 1512
W32/Lovelorn0.03% 1394
W32/Oporto0.03% 1554
W32/Sdbot0.03% 1821
W32/Sobig0.02% 1351
W32/Tariprox0.02% 1286
W32/Valla0.02% 1145
W32/Plexus0.02% 875
W32/Agobot0.02% 1090
W32/Kaze0.02% 1286
W32/Maslan0.02% 1094
W32/Elkern0.01% 434
W32/Forbot0.01% 324
W32/Mimail0.01% 786
W32/Choke0.01% 549
W32/Vetor0.01% 442
W32/Fujacks0.01% 294
W32/MTX0.01% 475
W32/Dumaru0.01% 667
W32/Rontokbro0.01% 389
W95/Weird0.01% 336
W32/Hybris0.01% 292
VBS/Psyme0.01% 305
W32/SillyFDC0.01% 6
W32/BadTrans0% 27
W32/Randon0% 6
W32/NewApt0% 11
W32/Kriz0% 77
W32/Lovgate0% 227
W32/Polip0% 122
VBS/LoveLetter0% 109
W32/Detnat0% 12
W32/Wukill0% 96
W32/Perlovga0% 2
W32/Gibe0% 4
W32/Braid0% 2
W32/Mylife0% 16
W95/Lovesong0% 3
W32/Drowor0% 2
W32/Apost0% 4
W32/Gokar0% 15
W97M/Marker0% 4
W32/Nimda0% 94
W32/Swen0% 266
W32/Dref0% 2
W32/ExploreZip0% 7
W32/Vote0% 20
W32/Rbot0% 162
W32/Nahata0% 161
JS/Kak0% 2
W32/Appflet0% 4
W95/Tenrobot0% 194
W32/Traxg0% 239
W32/Lirva0% 1
W32/Braban0% 23
W32/Opaserv0% 55
W32/Oror0% 2
W32/QAZ0% 1
W32/Banwarum0% 125
W32/Acebot0% 4
W32/Zoher0% 10
W32/Maldal0% 9
W32/Magistr0% 64
W32/Gurong0% 10
W97M/Thus0% 2
W95/Dupator0% 144
W32/BleBla0% 3
W32/Frethem0% 127
W32/Torvil0% 2
W32/Sohanad0% 99
W32/Onamu0% 2
W32/Plage0% 11
Wazzu0% 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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