| Virus Name | Prevalence | Percentage | Instances |
|---|---|---|---|
| W32/Mytob |   | 31.97% | 4849754 |
| W32/Netsky | | 25.3% | 3836891 |
| W32/Bagle | | 17.22% | 2611984 |
| W32/MyWife | | 10.71% | 1624333 |
| W32/Lovgate | | 3.51% | 532378 |
| W32/Mydoom | | 3.34% | 507211 |
| W32/Zafi | | 3.14% | 475643 |
| W32/Bagz | | 2.28% | 345794 |
| W32/Parite | | 1.02% | 154328 |
| W32/Funlove | | 0.26% | 38896 |
| W32/Mabutu | | 0.2% | 29638 |
| W32/Bugbear | | 0.16% | 23743 |
| W32/Klez | | 0.15% | 23261 |
| W32/Valla | | 0.14% | 21238 |
| W32/Lovelorn | | 0.07% | 9979 |
| W32/Sober | | 0.06% | 9219 |
| VBS/Redlof | | 0.06% | 9557 |
| W32/Agobot | | 0.06% | 9280 |
| W32/Elkern | | 0.05% | 8265 |
| JS/Kak | | 0.04% | 5341 |
| W32/Maslan | | 0.04% | 6292 |
| W32/Darby | | 0.03% | 4158 |
| W32/Dumaru | | 0.02% | 2431 |
| W32/Kipis | | 0.02% | 3163 |
| W95/Spaces | | 0.02% | 3581 |
| W32/Mimail | | 0.01% | 1361 |
| W32/Swen | | 0.01% | 1031 |
| W95/Tenrobot | | 0.01% | 1101 |
| W97M/Thus | | 0.01% | 1625 |
| W32/Reatle | | 0.01% | 787 |
| W97M/Ethan | | 0% | 22 |
| W32/Kriz | | 0% | 610 |
| W32/Jeefo | | 0% | 166 |
| VBS/LoveLetter | | 0% | 23 |
| W95/Lorez | | 0% | 17 |
| W32/Sobig | | 0% | 111 |
| W32/Gibe | | 0% | 46 |
| W32/Fizzer | | 0% | 103 |
| JS/Wonka | | 0% | 28 |
| W32/Stration | | 0% | 260 |
| W97M/Marker | | 0% | 4 |
| VBS/Soraci | | 0% | 1 |
| W32/Cabanas | | 0% | 4 |
| W32/Nimda | | 0% | 14 |
| IEStart | | 0% | 2 |
| W32/Warezov | | 0% | 2 |
| W32/Rbot | | 0% | 66 |
| Stoned | | 0% | 1 |
| W32/Kidala | | 0% | 24 |
| W32/Traxg | | 0% | 391 |
| W32/Opaserv | | 0% | 9 |
| W32/Banwarum | | 0% | 503 |
| W32/Korgo | | 0% | 7 |
| W32/Magistr | | 0% | 170 |
| W32/Gurong | | 0% | 549 |
| W95/Dupator | | 0% | 4 |
| W32/Torvil | | 0% | 15 |
| W32/Chir | | 0% | 193 |
| W32/Areses | | 0% | 429 |
| W32/Weird | | 0% | 1 |
| W32/Rontokbro | | 0% | 96 |
| W32/Rants | | 0% | 56 |
| W32/Sdbot | | 0% | 90 |
| W32/Sality | | 0% | 19 |
| W95/Weird | | 0% | 1 |
| W32/Small | | 0% | 515 |
| W32/Hybris | | 0% | 570 |
| W32/Feebs | | 0% | 53 |
| W32/Evaman | | 0% | 1 |
| W32/Blaster | | 0% | 8 |
| W32/Womble | | 0% | 10 |
| W32/Alcra | | 0% | 66 |
| W32/Sasser | | 0% | 1 |
| VBS/Psyme | | 0% | 93 |
| VBS/Haptime | | 0% | 1 |
| W32/Locksky | | 0% | 3 |
| Sic | | 0% | 1 |
| W32/Yaha | | 0% | 395 |
| W32/Bobax | | 0% | 685 |
| W32/Amibot | | 0% | 262 |
| W32/Eyeveg | | 0% | 110 |
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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