| Virus Name | Prevalence | Percentage | Instances |
|---|---|---|---|
| W32/Netsky |   | 34.61% | 1985492 |
| W32/Mytob | | 23.68% | 1358652 |
| W32/Bagle | | 12.19% | 699466 |
| W32/MyWife | | 6.06% | 347694 |
| W32/Virut | | 4.75% | 272344 |
| W32/Zafi | | 2.64% | 151562 |
| W32/Mydoom | | 2.5% | 143486 |
| W32/Bagz | | 1.86% | 106980 |
| W32/Stration | | 1.37% | 78441 |
| W32/VB | | 1.29% | 74208 |
| W32/Grum | | 1.03% | 59226 |
| W32/Sality | | 0.96% | 55037 |
| W32/Rontokbro | | 0.72% | 41565 |
| W32/Autorun | | 0.55% | 31506 |
| W32/IRCbot | | 0.51% | 29357 |
| W32/Parite | | 0.49% | 28197 |
| W32/Klez | | 0.48% | 27433 |
| W32/Rjump | | 0.46% | 26636 |
| W32/Sdbot | | 0.39% | 22453 |
| W32/Bugbear | | 0.31% | 17579 |
| VBS/Small | | 0.3% | 17465 |
| W32/Rbot | | 0.25% | 14060 |
| W32/Fujacks | | 0.23% | 13162 |
| W32/Sohanad | | 0.18% | 10565 |
| W32/Jeefo | | 0.17% | 10008 |
| W32/Looked | | 0.15% | 8666 |
| VBS/Butsur | | 0.14% | 7977 |
| W32/Tenga | | 0.12% | 7116 |
| W32/Perlovga | | 0.11% | 6133 |
| W32/Mabutu | | 0.1% | 5667 |
| W32/Fleming | | 0.1% | 5519 |
| W32/Feebs | | 0.1% | 5820 |
| W32/Wukill | | 0.09% | 4889 |
| W32/Womble | | 0.09% | 5297 |
| W32/Alman | | 0.08% | 4750 |
| W32/Allaple | | 0.07% | 4215 |
| W32/Nuwar | | 0.07% | 4037 |
| W32/Chir | | 0.06% | 3519 |
| W32/Choke | | 0.05% | 3002 |
| VBS/Redlof | | 0.05% | 2887 |
| W32/Sober | | 0.03% | 1639 |
| W32/Poebot | | 0.03% | 1916 |
| W32/Valla | | 0.03% | 1724 |
| W32/Agobot | | 0.03% | 1522 |
| W32/Puce | | 0.03% | 1529 |
| VBS/Areses | | 0.03% | 1874 |
| W32/Lovgate | | 0.02% | 905 |
| W32/Drowor | | 0.02% | 1113 |
| VBS/Roor | | 0.02% | 1189 |
| W32/Nimda | | 0.02% | 923 |
| W32/Funlove | | 0.02% | 1423 |
| W32/Traxg | | 0.02% | 1230 |
| W32/Opaserv | | 0.02% | 1412 |
| W32/Deloder | | 0.02% | 865 |
| W32/Navidad | | 0.02% | 1323 |
| W32/Detnat | | 0.01% | 366 |
| W32/Darby | | 0.01% | 412 |
| W32/Banwor | | 0.01% | 312 |
| W32/Mimail | | 0.01% | 535 |
| VBS/Soraci | | 0.01% | 293 |
| W32/Braban | | 0.01% | 573 |
| VBS/Solow | | 0.01% | 491 |
| W32/Banwarum | | 0.01% | 685 |
| W32/Korgo | | 0.01% | 312 |
| W32/Areses | | 0.01% | 752 |
| W32/Plexus | | 0.01% | 290 |
| W32/Myba | | 0.01% | 512 |
| W32/Small | | 0.01% | 362 |
| W32/Moonlight | | 0.01% | 589 |
| W32/Yaha | | 0.01% | 595 |
| W32/Bobax | | 0.01% | 544 |
| W32/Maslan | | 0.01% | 661 |
| W95/Spaces | | 0.01% | 740 |
| W32/Mypis | | 0.01% | 446 |
| W32/BadTrans | | 0% | 5 |
| W32/NewApt | | 0% | 1 |
| W32/Kriz | | 0% | 270 |
| W32/Polip | | 0% | 15 |
| VBS/LoveLetter | | 0% | 176 |
| W95/Lorez | | 0% | 60 |
| Class | | 0% | 1 |
| W32/Duni | | 0% | 2 |
| W32/Bolzano | | 0% | 17 |
| W32/Sobig | | 0% | 83 |
| W32/Gibe | | 0% | 11 |
| W32/Elkern | | 0% | 29 |
| W32/Braid | | 0% | 3 |
| ALS/Bursted | | 0% | 28 |
| W32/Fizzer | | 0% | 11 |
| W32/Mylife | | 0% | 240 |
| JS/Wonka | | 0% | 16 |
| W32/Forbot | | 0% | 74 |
| W32/Antiman | | 0% | 40 |
| W32/Vanbot | | 0% | 45 |
| W32/Etap | | 0% | 16 |
| W32/Vetor | | 0% | 22 |
| W32/Gokar | | 0% | 14 |
| W32/CTX | | 0% | 7 |
| W32/Aliz | | 0% | 6 |
| W32/Arequipa | | 0% | 9 |
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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