| Virus Name | Prevalence | Percentage | Instances |
|---|---|---|---|
| W32/Bagle |   | 26.26% | 2313061 |
| W32/Mytob | | 24.47% | 2154981 |
| W32/Netsky | | 21.67% | 1908607 |
| W32/MyWife | | 9.21% | 811347 |
| W32/Zafi | | 5.51% | 485552 |
| W32/Virut | | 3.92% | 345089 |
| W32/Lovgate | | 2.17% | 191285 |
| W32/Mydoom | | 1.53% | 134640 |
| W32/Stration | | 1% | 88329 |
| W32/Bagz | | 0.93% | 81849 |
| W32/Sober | | 0.76% | 67233 |
| W32/Parite | | 0.57% | 50253 |
| W32/Jeefo | | 0.5% | 44231 |
| W32/Funlove | | 0.41% | 35911 |
| W32/Klez | | 0.28% | 24309 |
| W32/Mabutu | | 0.17% | 14651 |
| W32/Bugbear | | 0.13% | 11494 |
| W32/Tenga | | 0.08% | 6679 |
| VBS/Redlof | | 0.07% | 6121 |
| W32/Womble | | 0.07% | 5955 |
| W32/Valla | | 0.06% | 5522 |
| W32/Magistr | | 0.04% | 3105 |
| W32/Reatle | | 0.03% | 3068 |
| W32/Maslan | | 0.03% | 2271 |
| VBS/Areses | | 0.03% | 3062 |
| W32/Dumaru | | 0.02% | 1422 |
| W32/Elkern | | 0.01% | 1236 |
| W32/Dref | | 0.01% | 769 |
| W32/Lovelorn | | 0.01% | 451 |
| W32/Plexus | | 0.01% | 591 |
| W32/Sality | | 0.01% | 584 |
| Showoff | | 0.01% | 21 |
| W97M/Ethan | | 0% | 39 |
| W32/Kriz | | 0% | 88 |
| W32/Polip | | 0% | 19 |
| W95/Lorez | | 0% | 1 |
| Class | | 0% | 10 |
| W32/Sobig | | 0% | 182 |
| W32/Gibe | | 0% | 29 |
| ALS/Bursted | | 0% | 4 |
| W32/Fizzer | | 0% | 4 |
| JS/Wonka | | 0% | 68 |
| W32/Forbot | | 0% | 3 |
| W32/Darby | | 0% | 117 |
| W32/Mimail | | 0% | 297 |
| W32/Vetor | | 0% | 225 |
| W32/Nimda | | 0% | 7 |
| W32/Swen | | 0% | 227 |
| W32/Fujacks | | 0% | 2 |
| W32/Rbot | | 0% | 291 |
| W32/Allaple | | 0% | 3 |
| W95/Tenrobot | | 0% | 261 |
| W32/Traxg | | 0% | 42 |
| W32/Aimbot | | 0% | 2 |
| W32/Opaserv | | 0% | 1 |
| W32/Banwarum | | 0% | 178 |
| W32/Korgo | | 0% | 261 |
| W32/Grum | | 0% | 24 |
| VBS/Edibara | | 0% | 5 |
| W32/Looked | | 0% | 12 |
| W32/Cablenet | | 0% | 1 |
| W32/VB | | 0% | 8 |
| W32/Kedebe | | 0% | 148 |
| W32/Chir | | 0% | 128 |
| W32/Areses | | 0% | 7 |
| W32/Rontokbro | | 0% | 362 |
| W32/Sdbot | | 0% | 51 |
| W95/Weird | | 0% | 3 |
| W32/Hybris | | 0% | 87 |
| W32/Feebs | | 0% | 121 |
| W32/Inforyou | | 0% | 1 |
| W32/Blaster | | 0% | 8 |
| W32/Sasser | | 0% | 16 |
| W32/Puce | | 0% | 16 |
| VBS/Psyme | | 0% | 50 |
| Sic | | 0% | 26 |
| Tristate | | 0% | 9 |
| W32/Yaha | | 0% | 289 |
| W32/Anis | | 0% | 1 |
| W32/Kipis | | 0% | 18 |
| W32/Bobax | | 0% | 6 |
| W95/Spaces | | 0% | 112 |
| W32/Eyeveg | | 0% | 51 |
| VBS/Gedza | | 0% | 25 |
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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