| Virus Name | Prevalence | Percentage | Instances |
|---|---|---|---|
| W32/Netsky |   | 59.88% | 35968 |
| W32/Sober | | 13.09% | 7861 |
| W32/Bagz | | 11.93% | 7167 |
| W32/Bagle | | 10% | 6006 |
| W32/Zafi | | 1.34% | 802 |
| W32/Funlove | | 0.84% | 504 |
| W32/Mydoom | | 0.71% | 427 |
| W32/Dumaru | | 0.62% | 372 |
| W32/Mabutu | | 0.38% | 227 |
| W32/Lovgate | | 0.26% | 157 |
| W32/Valla | | 0.19% | 114 |
| W32/Klez | | 0.17% | 103 |
| W32/Bugbear | | 0.13% | 81 |
| W32/Pate | | 0.09% | 57 |
| W95/Tenrobot | | 0.06% | 39 |
| W32/MyWife | | 0.05% | 33 |
| W95/Spaces | | 0.04% | 25 |
| W32/Elkern | | 0.03% | 17 |
| W32/Mytob | | 0.03% | 19 |
| W32/Swen | | 0.02% | 14 |
| W32/Myfip | | 0.02% | 13 |
| VBS/Psyme | | 0.02% | 10 |
| Class | | 0.01% | 4 |
| Hiac | | 0.01% | 7 |
| Lunch | | 0.01% | 6 |
| W32/Ganda | | 0.01% | 4 |
| W32/Kriz | | 0% | 2 |
| W32/Sobig | | 0% | 2 |
| W32/Mimail | | 0% | 2 |
| W97M/Marker | | 0% | 1 |
| VBS/Soraci | | 0% | 1 |
| W32/Spybot | | 0% | 1 |
| IEStart | | 0% | 3 |
| Hope | | 0% | 2 |
| W32/Korgo | | 0% | 1 |
| W32/Magistr | | 0% | 2 |
| VBS/Redlof | | 0% | 2 |
| Cap | | 0% | 3 |
| ColdApe | | 0% | 1 |
| W32/Nachi | | 0% | 2 |
| W32/Sdbot | | 0% | 2 |
| W32/Hybris | | 0% | 1 |
| W95/CIH | | 0% | 1 |
| W32/Yaha | | 0% | 1 |
| W32/Bobax | | 0% | 1 |
| Story | | 0% | 1 |
| W32/Navidad | | 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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