| Virus Name | Prevalence | Percentage | Instances |
|---|---|---|---|
| W32/Netsky |   | 44.57% | 66222 |
| W32/Mytob | | 21.15% | 31420 |
| W32/Bagle | | 10.5% | 15600 |
| W32/Mydoom | | 10.38% | 15429 |
| W32/MyWife | | 6.25% | 9281 |
| W32/Lovgate | | 2.28% | 3393 |
| W32/Sdbot | | 1.51% | 2251 |
| W32/Pate | | 1.08% | 1608 |
| W32/Zafi | | 0.35% | 514 |
| W32/Bugbear | | 0.31% | 462 |
| W32/Funlove | | 0.31% | 460 |
| W32/Feebs | | 0.28% | 417 |
| W32/Bagz | | 0.24% | 353 |
| W32/Sality | | 0.15% | 216 |
| W32/Valla | | 0.1% | 147 |
| W32/Gibe | | 0.08% | 115 |
| W32/Mabutu | | 0.08% | 120 |
| W32/Chir | | 0.08% | 112 |
| W32/Brepibot | | 0.06% | 86 |
| W32/Dumaru | | 0.04% | 53 |
| W32/Maslan | | 0.04% | 58 |
| W32/Mimail | | 0.02% | 36 |
| W32/Gael | | 0.02% | 27 |
| W32/Small | | 0.02% | 28 |
| W32/Scano | | 0.02% | 31 |
| W32/Elkern | | 0.01% | 16 |
| JS/Wonka | | 0.01% | 9 |
| W32/Klez | | 0.01% | 22 |
| W32/Magistr | | 0.01% | 12 |
| W32/Kedebe | | 0.01% | 13 |
| W32/Reatle | | 0.01% | 20 |
| W32/Kriz | | 0% | 6 |
| W32/Sober | | 0% | 2 |
| W97M/Marker | | 0% | 1 |
| W32/Nimda | | 0% | 2 |
| Melissa | | 0% | 2 |
| W95/Tenrobot | | 0% | 4 |
| W32/Lirva | | 0% | 1 |
| W32/Banwarum | | 0% | 5 |
| W32/Yamanner | | 0% | 5 |
| Burglar | | 0% | 2 |
| W32/SirCam | | 0% | 1 |
| W97M/Thus | | 0% | 6 |
| W32/Frethem | | 0% | 1 |
| W32/Higuy | | 0% | 3 |
| W32/Weird | | 0% | 1 |
| W95/Weird | | 0% | 1 |
| W95/CIH | | 0% | 1 |
| VBS/Psyme | | 0% | 1 |
| Sic | | 0% | 1 |
| JS/Fortnight | | 0% | 5 |
| W95/Spaces | | 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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