| Virus Name | Prevalence | Percentage | Instances |
|---|---|---|---|
| W32/Netsky |   | 82.41% | 215228 |
| W32/Bagle | | 11.32% | 29557 |
| W32/Zafi | | 2.49% | 6508 |
| W32/Sober | | 1.9% | 4953 |
| W32/Dumaru | | 0.58% | 1521 |
| W32/Klez | | 0.19% | 491 |
| W32/Lovgate | | 0.12% | 317 |
| W32/Bugbear | | 0.11% | 282 |
| W32/Mydoom | | 0.1% | 266 |
| W32/MyWife | | 0.08% | 206 |
| W32/Swen | | 0.07% | 190 |
| W32/Funlove | | 0.07% | 181 |
| VBS/Redlof | | 0.07% | 183 |
| W32/Mimail | | 0.06% | 161 |
| W32/Fizzer | | 0.04% | 112 |
| W32/Valla | | 0.04% | 113 |
| W32/Parite | | 0.03% | 71 |
| W32/Hybris | | 0.03% | 72 |
| VBS/Psyme | | 0.03% | 82 |
| W95/Spaces | | 0.03% | 72 |
| W32/Sobig | | 0.02% | 48 |
| WYX | | 0.02% | 42 |
| W32/Magistr | | 0.02% | 54 |
| W32/Nachi | | 0.02% | 43 |
| W32/Sasser | | 0.02% | 46 |
| W32/Yaha | | 0.02% | 55 |
| W32/BadTrans | | 0.01% | 28 |
| W32/Gibe | | 0.01% | 33 |
| W32/Nimda | | 0.01% | 14 |
| Inor | | 0.01% | 18 |
| W32/Korgo | | 0.01% | 26 |
| XM/Laroux | | 0.01% | 29 |
| W32/Lovsan | | 0.01% | 33 |
| W32/Gaobot | | 0.01% | 14 |
| JS/Fortnight | | 0.01% | 24 |
| W32/Antinny | | 0.01% | 16 |
| W97M/Ethan | | 0% | 1 |
| Internal | | 0% | 1 |
| Netlog | | 0% | 4 |
| VBS/LoveLetter | | 0% | 2 |
| W32/Wukill | | 0% | 2 |
| Mumu | | 0% | 1 |
| W97M/Marker | | 0% | 6 |
| JS/Kak | | 0% | 5 |
| W95/Tenrobot | | 0% | 2 |
| Poorboy | | 0% | 2 |
| Debeski | | 0% | 2 |
| W32/Opaserv | | 0% | 9 |
| W32/Oror | | 0% | 2 |
| W32/Sachiel | | 0% | 1 |
| Cap | | 0% | 1 |
| WelcomB | | 0% | 1 |
| Cascade | | 0% | 1 |
| W32/SirCam | | 0% | 3 |
| W32/Frethem | | 0% | 2 |
| Nsi | | 0% | 1 |
| W32/Chir | | 0% | 1 |
| Opey | | 0% | 1 |
| Toraja | | 0% | 2 |
| W32/Ganda | | 0% | 13 |
| Bablas | | 0% | 3 |
| W32/Ska | | 0% | 2 |
| W32/Marburg | | 0% | 1 |
| Freelinks | | 0% | 1 |
| W95/CIH | | 0% | 2 |
| Divi | | 0% | 4 |
| VBS/Haptime | | 0% | 2 |
| Sic | | 0% | 2 |
| Tristate | | 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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