| Virus Name | Prevalence | Percentage | Instances |
|---|---|---|---|
| W32/Netsky |   | 32.58% | 1628866 |
| W32/Mytob | | 22.26% | 1113028 |
| W32/Bagle | | 11.81% | 590591 |
| W32/Stration | | 7.9% | 394999 |
| W32/Zafi | | 4.93% | 246677 |
| W32/Lovgate | | 2.32% | 116045 |
| W32/Mydoom | | 2.2% | 110041 |
| W32/Grum | | 1.56% | 77863 |
| W32/Sality | | 1.54% | 77160 |
| W32/VB | | 1.48% | 74181 |
| W32/Autorun | | 1.3% | 64794 |
| W32/Bagz | | 1.2% | 59882 |
| W32/Rontokbro | | 1.14% | 57211 |
| W32/Virut | | 1.13% | 56637 |
| W32/Rjump | | 0.58% | 28790 |
| W32/Parite | | 0.54% | 26763 |
| W32/Hakaglan | | 0.45% | 22399 |
| VBS/Small | | 0.41% | 20657 |
| W32/Sdbot | | 0.38% | 19026 |
| W32/Fujacks | | 0.37% | 18588 |
| W32/Sober | | 0.34% | 17027 |
| W32/Sohanad | | 0.32% | 16223 |
| W32/Klez | | 0.31% | 15479 |
| W32/Areses | | 0.26% | 12807 |
| W32/Bugbear | | 0.24% | 12227 |
| W32/Looked | | 0.2% | 10061 |
| W32/Feebs | | 0.19% | 9533 |
| W32/Perlovga | | 0.17% | 8306 |
| W32/Alman | | 0.17% | 8667 |
| W32/Wukill | | 0.14% | 6831 |
| VBS/Butsur | | 0.14% | 7215 |
| W32/Tenga | | 0.11% | 5498 |
| W32/Choke | | 0.1% | 5233 |
| W32/Mabutu | | 0.09% | 4462 |
| W32/Allaple | | 0.08% | 4123 |
| W32/Chir | | 0.08% | 3975 |
| VBS/Redlof | | 0.06% | 3045 |
| W32/Nuwar | | 0.06% | 3209 |
| W32/Womble | | 0.05% | 2454 |
| W32/Puce | | 0.05% | 2257 |
| W32/Mypis | | 0.05% | 2645 |
| W32/Nimda | | 0.04% | 1759 |
| W32/Banwarum | | 0.04% | 1881 |
| W32/Agobot | | 0.04% | 1932 |
| W32/Jeefo | | 0.03% | 1293 |
| W32/Drowor | | 0.03% | 1291 |
| W32/Funlove | | 0.03% | 1633 |
| W32/Valla | | 0.03% | 1286 |
| W32/Oror | | 0.03% | 1743 |
| W32/Fleming | | 0.03% | 1275 |
| W32/Saburex | | 0.03% | 1466 |
| W32/Bobax | | 0.03% | 1507 |
| W32/Polip | | 0.02% | 1044 |
| W32/Traxg | | 0.02% | 859 |
| W32/Opaserv | | 0.02% | 978 |
| W32/Moonlight | | 0.02% | 798 |
| W32/Randon | | 0.01% | 269 |
| VBS/LoveLetter | | 0.01% | 260 |
| W32/Detnat | | 0.01% | 599 |
| W32/Darby | | 0.01% | 489 |
| W32/Mimail | | 0.01% | 379 |
| VBS/Soraci | | 0.01% | 394 |
| W32/Dref | | 0.01% | 550 |
| W32/Braban | | 0.01% | 487 |
| W32/MTX | | 0.01% | 418 |
| VBS/Solow | | 0.01% | 605 |
| W32/Korgo | | 0.01% | 357 |
| W32/Expiro | | 0.01% | 372 |
| W32/Mkar | | 0.01% | 584 |
| W32/Plexus | | 0.01% | 252 |
| W95/Weird | | 0.01% | 281 |
| W32/Wenna | | 0.01% | 281 |
| W32/Yaha | | 0.01% | 532 |
| W32/Maslan | | 0.01% | 616 |
| Titch | | 0% | 9 |
| W97M/Ethan | | 0% | 52 |
| W32/BadTrans | | 0% | 55 |
| W32/NewApt | | 0% | 4 |
| W32/Kriz | | 0% | 204 |
| Class | | 0% | 20 |
| W32/Duni | | 0% | 2 |
| Onex | | 0% | 5 |
| W32/Bolzano | | 0% | 32 |
| W32/Sobig | | 0% | 44 |
| W32/Gibe | | 0% | 1 |
| W32/Elkern | | 0% | 39 |
| W32/Braid | | 0% | 8 |
| W32/Stator | | 0% | 70 |
| W32/Mapson | | 0% | 1 |
| ALS/Bursted | | 0% | 41 |
| W32/Fizzer | | 0% | 1 |
| W32/Mylife | | 0% | 15 |
| Smack | | 0% | 9 |
| AntiEXE | | 0% | 19 |
| JS/Wonka | | 0% | 12 |
| W95/Lovesong | | 0% | 1 |
| W32/Forbot | | 0% | 170 |
| Nottice | | 0% | 1 |
| W32/Antiman | | 0% | 56 |
| W32/Apost | | 0% | 6 |
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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