| Virus Name | Prevalence | Percentage | Instances |
|---|---|---|---|
| W32/Netsky |   | 61.48% | 64413 |
| W32/Bagle | | 20.98% | 21980 |
| W32/Sober | | 10.45% | 10949 |
| W32/Bagz | | 0.96% | 1010 |
| W32/Zafi | | 0.81% | 846 |
| W32/Mydoom | | 0.74% | 772 |
| W32/Dumaru | | 0.72% | 755 |
| W32/Mabutu | | 0.53% | 552 |
| W32/Funlove | | 0.41% | 434 |
| W32/Sobig | | 0.39% | 412 |
| W32/Klez | | 0.39% | 412 |
| W32/Lovgate | | 0.35% | 363 |
| W32/Valla | | 0.3% | 312 |
| W32/Bugbear | | 0.19% | 203 |
| W32/Mimail | | 0.12% | 129 |
| W32/Swen | | 0.1% | 106 |
| W32/MyWife | | 0.1% | 100 |
| VBS/Redlof | | 0.09% | 90 |
| W32/Pate | | 0.09% | 90 |
| W32/Fizzer | | 0.08% | 84 |
| W32/Mota | | 0.07% | 70 |
| W32/Yaha | | 0.07% | 77 |
| W32/Hybris | | 0.05% | 50 |
| Mumu | | 0.04% | 47 |
| W32/Mylife | | 0.04% | 40 |
| W95/Tenrobot | | 0.04% | 43 |
| W95/Spaces | | 0.04% | 39 |
| W32/Kriz | | 0.03% | 34 |
| W32/Nachi | | 0.03% | 36 |
| W32/Buchon | | 0.03% | 27 |
| W32/BadTrans | | 0.02% | 22 |
| W97M/Marker | | 0.02% | 17 |
| W32/Magistr | | 0.02% | 22 |
| W32/Plexus | | 0.02% | 16 |
| VBS/LoveLetter | | 0.01% | 11 |
| W32/Wukill | | 0.01% | 7 |
| W32/Psyme | | 0.01% | 8 |
| W32/Nimda | | 0.01% | 9 |
| WYX | | 0.01% | 12 |
| W32/Lovelorn | | 0.01% | 13 |
| W32/Torvil | | 0.01% | 7 |
| W32/Chir | | 0.01% | 8 |
| W32/Ganda | | 0.01% | 7 |
| W32/Sdbot | | 0.01% | 6 |
| W95/CIH | | 0.01% | 7 |
| Internal | | 0% | 2 |
| Netlog | | 0% | 2 |
| Class | | 0% | 1 |
| W32/Gibe | | 0% | 1 |
| Form | | 0% | 3 |
| Supil | | 0% | 1 |
| VBS/Soraci | | 0% | 2 |
| IEStart | | 0% | 2 |
| Inor | | 0% | 1 |
| W32/Mofei | | 0% | 1 |
| W32/Opaserv | | 0% | 1 |
| W32/MTX | | 0% | 3 |
| Hope | | 0% | 3 |
| W32/Korgo | | 0% | 10 |
| Cap | | 0% | 1 |
| Cascade | | 0% | 1 |
| W32/SirCam | | 0% | 5 |
| Linux/LION | | 0% | 1 |
| W32/Winur | | 0% | 1 |
| W95/Kuang | | 0% | 2 |
| W32/Lovsan | | 0% | 1 |
| W32/Evaman | | 0% | 2 |
| Freelinks | | 0% | 1 |
| W32/SQLSlammer | | 0% | 1 |
| Divi | | 0% | 1 |
| VBS/Haptime | | 0% | 1 |
| Sic | | 0% | 5 |
| W32/Antinny | | 0% | 3 |
| W32/Bobax | | 0% | 4 |
| AntiCMOS | | 0% | 3 |
| W32/Tecata | | 0% | 4 |
| 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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