| Virus Name | Prevalence | Percentage | Instances |
|---|---|---|---|
| W32/Bagle |   | 27.63% | 2754822 |
| W32/Netsky | | 23.02% | 2295459 |
| W32/Mytob | | 19.22% | 1916596 |
| W32/MyWife | | 7.62% | 759543 |
| W32/Virut | | 4.04% | 402459 |
| W32/Lovgate | | 4.02% | 400842 |
| W32/Zafi | | 3.29% | 327747 |
| W32/Mydoom | | 1.47% | 146896 |
| W32/Bagz | | 1.31% | 130391 |
| W32/Stration | | 1.05% | 104530 |
| W32/Rontokbro | | 1.02% | 101766 |
| W32/Rjump | | 0.74% | 73867 |
| W32/VB | | 0.67% | 66783 |
| W32/Parite | | 0.6% | 60134 |
| W32/Jeefo | | 0.55% | 54712 |
| VBS/Small | | 0.45% | 45257 |
| W32/Funlove | | 0.43% | 42563 |
| W32/Perlovga | | 0.3% | 30197 |
| W32/Looked | | 0.29% | 28613 |
| VBS/Butsur | | 0.27% | 27391 |
| W32/Klez | | 0.25% | 24855 |
| W32/Fujacks | | 0.23% | 22959 |
| W32/Sality | | 0.18% | 17895 |
| W32/Mabutu | | 0.14% | 14294 |
| W32/Wukill | | 0.11% | 11028 |
| W32/Sohanad | | 0.11% | 11209 |
| W32/Tenga | | 0.11% | 11174 |
| W32/Allaple | | 0.09% | 8794 |
| W32/Bugbear | | 0.07% | 7400 |
| VBS/Redlof | | 0.07% | 6609 |
| W32/Chir | | 0.06% | 5557 |
| W32/Alman | | 0.05% | 5132 |
| W32/Womble | | 0.05% | 5031 |
| W32/Poebot | | 0.04% | 4432 |
| W32/Puce | | 0.04% | 4299 |
| W32/Elkern | | 0.03% | 3430 |
| W32/Opaserv | | 0.03% | 2850 |
| VBS/Areses | | 0.03% | 2587 |
| W32/Banwarum | | 0.02% | 2064 |
| W32/Grum | | 0.02% | 1662 |
| W32/Magistr | | 0.02% | 1933 |
| W32/Moonlight | | 0.02% | 1578 |
| W32/Yaha | | 0.02% | 1828 |
| W32/Maslan | | 0.02% | 1999 |
| W97M/Ethan | | 0.01% | 635 |
| W32/Sober | | 0.01% | 838 |
| W32/Darby | | 0.01% | 1201 |
| VBS/Soraci | | 0.01% | 858 |
| Buendia | | 0.01% | 113 |
| Zeitung | | 0.01% | 1 |
| W32/Lovelorn | | 0.01% | 785 |
| W32/Valla | | 0.01% | 1082 |
| VBS/Solow | | 0.01% | 875 |
| W32/Korgo | | 0.01% | 1378 |
| W32/Dumaru | | 0.01% | 790 |
| W32/Areses | | 0.01% | 889 |
| W32/Reatle | | 0.01% | 774 |
| W32/Plexus | | 0.01% | 678 |
| W32/Mypis | | 0.01% | 1138 |
| Titch | | 0% | 9 |
| W32/Randon | | 0% | 291 |
| W32/Kriz | | 0% | 187 |
| W32/Polip | | 0% | 33 |
| VBS/LoveLetter | | 0% | 309 |
| W95/Lorez | | 0% | 4 |
| Class | | 0% | 41 |
| Concept | | 0% | 3 |
| W32/Sobig | | 0% | 141 |
| W32/Detnat | | 0% | 4 |
| W32/Gibe | | 0% | 38 |
| W32/Goner | | 0% | 1 |
| ALS/Bursted | | 0% | 7 |
| W32/Fizzer | | 0% | 7 |
| Smack | | 0% | 6 |
| AntiEXE | | 0% | 1 |
| JS/Wonka | | 0% | 4 |
| W32/Forbot | | 0% | 41 |
| Nottice | | 0% | 8 |
| W32/Antiman | | 0% | 129 |
| Shiver | | 0% | 4 |
| W32/Mimail | | 0% | 156 |
| Barisadas | | 0% | 2 |
| W32/Codbot | | 0% | 72 |
| W97M/Nometz | | 0% | 11 |
| W32/Vetor | | 0% | 53 |
| W97M/Marker | | 0% | 216 |
| W32/Spybot | | 0% | 308 |
| W32/Nimda | | 0% | 443 |
| Melissa | | 0% | 67 |
| W32/Swen | | 0% | 225 |
| W32/Dref | | 0% | 12 |
| Groov | | 0% | 8 |
| W32/Rbot | | 0% | 25 |
| W32/Chic | | 0% | 1 |
| W95/Tenrobot | | 0% | 338 |
| W32/Funner | | 0% | 11 |
| W32/Opanki | | 0% | 2 |
| W32/Traxg | | 0% | 107 |
| W32/Aimbot | | 0% | 3 |
| W32/Oror | | 0% | 100 |
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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