| Virus Name | Prevalence | Percentage | Instances |
|---|---|---|---|
| W32/Netsky |   | 30.11% | 2076653 |
| W32/Mytob | | 24.58% | 1695000 |
| W32/Bagle | | 12.85% | 886328 |
| W32/MyWife | | 10.69% | 737206 |
| W32/Virut | | 6.59% | 454248 |
| W32/Zafi | | 6.03% | 416147 |
| W32/Lovgate | | 2.83% | 195217 |
| W32/Mydoom | | 2.06% | 142380 |
| W32/Bagz | | 0.88% | 60811 |
| W32/Tenga | | 0.76% | 52323 |
| W32/Funlove | | 0.44% | 30300 |
| W32/Parite | | 0.38% | 26002 |
| W32/Klez | | 0.32% | 22402 |
| W32/Bugbear | | 0.23% | 15699 |
| W32/Womble | | 0.23% | 16063 |
| W32/Mabutu | | 0.21% | 14474 |
| W32/Valla | | 0.14% | 9995 |
| VBS/Redlof | | 0.11% | 7412 |
| W32/Stration | | 0.1% | 6763 |
| W32/Sality | | 0.08% | 5610 |
| W32/Sober | | 0.07% | 4771 |
| W32/Yaha | | 0.05% | 3438 |
| W32/Dref | | 0.03% | 1913 |
| W32/Maslan | | 0.03% | 2255 |
| W32/Elkern | | 0.02% | 1280 |
| W97M/Thus | | 0.02% | 1123 |
| W32/Dumaru | | 0.02% | 1292 |
| W32/Plexus | | 0.02% | 1074 |
| W32/Kriz | | 0.01% | 481 |
| W32/Darby | | 0.01% | 748 |
| W32/Mimail | | 0.01% | 685 |
| W32/Swen | | 0.01% | 513 |
| W95/Tenrobot | | 0.01% | 1011 |
| W32/Magistr | | 0.01% | 611 |
| W95/Dupator | | 0.01% | 361 |
| W32/Hybris | | 0.01% | 352 |
| VBS/Psyme | | 0.01% | 365 |
| W95/Spaces | | 0.01% | 795 |
| W97M/Ethan | | 0% | 60 |
| Trivial | | 0% | 2 |
| W32/Jeefo | | 0% | 308 |
| Class | | 0% | 1 |
| W32/Sobig | | 0% | 202 |
| W32/Gibe | | 0% | 101 |
| W32/Puper | | 0% | 2 |
| JS/Wonka | | 0% | 53 |
| W32/Forbot | | 0% | 133 |
| W97M/Marker | | 0% | 2 |
| VBS/Soraci | | 0% | 1 |
| VBS/Roor | | 0% | 5 |
| W32/Nimda | | 0% | 6 |
| W32/Allaple | | 0% | 14 |
| W32/Lovelorn | | 0% | 85 |
| W32/Banwarum | | 0% | 237 |
| W32/VB | | 0% | 3 |
| W32/Kedebe | | 0% | 73 |
| W32/Chir | | 0% | 123 |
| W32/Areses | | 0% | 65 |
| W32/Reatle | | 0% | 107 |
| W32/Rontokbro | | 0% | 170 |
| W32/Sdbot | | 0% | 10 |
| W95/Weird | | 0% | 57 |
| W32/Feebs | | 0% | 24 |
| DOS/Nafazit | | 0% | 1 |
| Sic | | 0% | 20 |
| W32/Bofra | | 0% | 2 |
| W32/Kipis | | 0% | 154 |
| VMPCK | | 0% | 2 |
| Story | | 0% | 1 |
| W32/Rungbu | | 0% | 1 |
| W32/Eyeveg | | 0% | 99 |
| VBS/Gedza | | 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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