| Virus Name | Prevalence | Percentage | Instances |
|---|---|---|---|
| W32/Netsky |   | 46.78% | 47552 |
| W32/Mytob | | 18.29% | 18589 |
| W32/Bagle | | 17.37% | 17659 |
| W32/Mydoom | | 8.05% | 8180 |
| W32/MyWife | | 5.04% | 5124 |
| W32/Bugbear | | 1.48% | 1500 |
| W32/Pate | | 1.46% | 1487 |
| W32/Lovgate | | 0.3% | 303 |
| W32/Zafi | | 0.17% | 169 |
| W32/Sdbot | | 0.17% | 172 |
| W32/Mimail | | 0.12% | 119 |
| VBS/Psyme | | 0.1% | 104 |
| W32/Dumaru | | 0.09% | 87 |
| W32/Sality | | 0.09% | 91 |
| W32/Feebs | | 0.09% | 90 |
| W32/Gibe | | 0.07% | 75 |
| W32/Valla | | 0.07% | 67 |
| W32/Mabutu | | 0.06% | 60 |
| W32/Maslan | | 0.06% | 66 |
| W32/Klez | | 0.03% | 33 |
| JS/Wonka | | 0.02% | 21 |
| W32/Reatle | | 0.02% | 25 |
| W32/Kriz | | 0.01% | 8 |
| W32/Elkern | | 0.01% | 6 |
| W32/Swen | | 0.01% | 10 |
| Yamanner | | 0.01% | 5 |
| W32/Gael | | 0.01% | 9 |
| W32/Chir | | 0.01% | 7 |
| W32/Areses | | 0.01% | 7 |
| W32/Small | | 0.01% | 6 |
| W32/BadTrans | | 0% | 1 |
| Concept | | 0% | 1 |
| W32/Sobig | | 0% | 2 |
| Tiny | | 0% | 2 |
| W97M/Marker | | 0% | 1 |
| VBS/Roor | | 0% | 1 |
| W32/Nimda | | 0% | 4 |
| W32/Funlove | | 0% | 1 |
| W32/Rbot | | 0% | 1 |
| W32/Banwarum | | 0% | 2 |
| W32/Magistr | | 0% | 1 |
| VBS/Redlof | | 0% | 1 |
| W97M/Thus | | 0% | 4 |
| W32/Torvil | | 0% | 2 |
| W32/Higuy | | 0% | 1 |
| Temple | | 0% | 1 |
| Mirror | | 0% | 1 |
| W97M/Verlor | | 0% | 1 |
| Sic | | 0% | 1 |
| JS/Fortnight | | 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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