| Virus Name | Prevalence | Percentage | Instances |
|---|---|---|---|
| W32/Netsky |   | 40.85% | 2269246 |
| W32/Mytob | | 18.26% | 1014397 |
| W32/Bagle | | 11.52% | 639923 |
| W32/MyWife | | 8.6% | 477942 |
| W32/Virut | | 7.29% | 405205 |
| W32/Mydoom | | 3.49% | 194056 |
| W32/Bagz | | 2.04% | 113515 |
| W32/Zafi | | 2.03% | 112638 |
| W32/Sality | | 1.56% | 86928 |
| W32/Stration | | 0.94% | 52313 |
| W32/Grum | | 0.9% | 49918 |
| W32/Parite | | 0.46% | 25421 |
| W32/Klez | | 0.36% | 19926 |
| W32/SirCam | | 0.24% | 13606 |
| W32/CTX | | 0.17% | 9402 |
| W32/Tenga | | 0.13% | 7045 |
| W32/Mabutu | | 0.12% | 6580 |
| W32/Jeefo | | 0.1% | 5306 |
| W32/Yaha | | 0.1% | 5305 |
| W32/Funlove | | 0.08% | 4464 |
| VBS/Redlof | | 0.07% | 4107 |
| W32/Looked | | 0.06% | 3110 |
| W32/Womble | | 0.05% | 2849 |
| W32/Sober | | 0.04% | 2017 |
| W32/Spybot | | 0.04% | 2003 |
| W32/Allaple | | 0.04% | 2210 |
| W32/VB | | 0.04% | 2433 |
| W32/Bugbear | | 0.03% | 1512 |
| W32/Lovelorn | | 0.03% | 1394 |
| W32/Oporto | | 0.03% | 1554 |
| W32/Sdbot | | 0.03% | 1821 |
| W32/Sobig | | 0.02% | 1351 |
| W32/Tariprox | | 0.02% | 1286 |
| W32/Valla | | 0.02% | 1145 |
| W32/Plexus | | 0.02% | 875 |
| W32/Agobot | | 0.02% | 1090 |
| W32/Kaze | | 0.02% | 1286 |
| W32/Maslan | | 0.02% | 1094 |
| W32/Elkern | | 0.01% | 434 |
| W32/Forbot | | 0.01% | 324 |
| W32/Mimail | | 0.01% | 786 |
| W32/Choke | | 0.01% | 549 |
| W32/Vetor | | 0.01% | 442 |
| W32/Fujacks | | 0.01% | 294 |
| W32/MTX | | 0.01% | 475 |
| W32/Dumaru | | 0.01% | 667 |
| W32/Rontokbro | | 0.01% | 389 |
| W95/Weird | | 0.01% | 336 |
| W32/Hybris | | 0.01% | 292 |
| VBS/Psyme | | 0.01% | 305 |
| W32/SillyFDC | | 0.01% | 6 |
| W32/BadTrans | | 0% | 27 |
| W32/Randon | | 0% | 6 |
| W32/NewApt | | 0% | 11 |
| W32/Kriz | | 0% | 77 |
| W32/Lovgate | | 0% | 227 |
| W32/Polip | | 0% | 122 |
| VBS/LoveLetter | | 0% | 109 |
| W32/Detnat | | 0% | 12 |
| W32/Wukill | | 0% | 96 |
| W32/Perlovga | | 0% | 2 |
| W32/Gibe | | 0% | 4 |
| W32/Braid | | 0% | 2 |
| W32/Mylife | | 0% | 16 |
| W95/Lovesong | | 0% | 3 |
| W32/Drowor | | 0% | 2 |
| W32/Apost | | 0% | 4 |
| W32/Gokar | | 0% | 15 |
| W97M/Marker | | 0% | 4 |
| W32/Nimda | | 0% | 94 |
| W32/Swen | | 0% | 266 |
| W32/Dref | | 0% | 2 |
| W32/ExploreZip | | 0% | 7 |
| W32/Vote | | 0% | 20 |
| W32/Rbot | | 0% | 162 |
| W32/Nahata | | 0% | 161 |
| JS/Kak | | 0% | 2 |
| W32/Appflet | | 0% | 4 |
| W95/Tenrobot | | 0% | 194 |
| W32/Traxg | | 0% | 239 |
| W32/Lirva | | 0% | 1 |
| W32/Braban | | 0% | 23 |
| W32/Opaserv | | 0% | 55 |
| W32/Oror | | 0% | 2 |
| W32/QAZ | | 0% | 1 |
| W32/Banwarum | | 0% | 125 |
| W32/Acebot | | 0% | 4 |
| W32/Zoher | | 0% | 10 |
| W32/Maldal | | 0% | 9 |
| W32/Magistr | | 0% | 64 |
| W32/Gurong | | 0% | 10 |
| W97M/Thus | | 0% | 2 |
| W95/Dupator | | 0% | 144 |
| W32/BleBla | | 0% | 3 |
| W32/Frethem | | 0% | 127 |
| W32/Torvil | | 0% | 2 |
| W32/Sohanad | | 0% | 99 |
| W32/Onamu | | 0% | 2 |
| W32/Plage | | 0% | 11 |
| Wazzu | | 0% | 1 |
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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