| Threat Alias | Number of Incidents |
| W32/Vetor-A [Sophos] | 263 |
| PE_VIRUT.XO [Trend Micro] | 259 |
| Virus.Win32.Virut.q [Kaspersky Lab] | 254 |
| W32/Virut.gen [McAfee] | 250 |
| W32.Virut.U [Symantec] | 241 |
| Win32.Virut.Gen.5 [PC Tools] | 239 |
| Trojan-Downloader.Win32.VB.bbi [Ikarus] | 49 |
| Virus.Win32.Sality [Ikarus] | 18 |
| W32.SillyFDC [Symantec] | 14 |
| Win32/Virut.D [AhnLab] | 13 |
| Virus.Win32.Virut [Ikarus] | 9 |
| Email-Worm.Win32.Runouce.b [Kaspersky Lab] | 8 |
| PE_Chir.B [Trend Micro] | 6 |
| W32/Chir.b@MM [McAfee] | 6 |
| W32/Chir-B [Sophos] | 6 |
| Generic VB.c [McAfee] | 5 |
| Virus.Win32.Virut.bo [Ikarus] | 5 |
| Worm.VB.YVF [PC Tools] | 5 |
| Worm.Win32.VB.du [Ikarus] | 5 |
| Email-Worm.Win32.Runouce.B [Ikarus] | 4 |
| Spam-Mailbot [McAfee] | 4 |
| Virus.Win32.Virut.ak [Ikarus] | 4 |
| W32.Spybot.Worm [Symantec] | 4 |
| Worm.Win32.AutoRun [Ikarus] | 4 |
| Email-Worm.Win32.Tanatos.B [Ikarus] | 3 |
| Trojan.Win32.Agent [Ikarus] | 3 |
| Trojan.Win32.Pakes.cob [Kaspersky Lab] | 3 |
| Trojan-Dropper.Delf [Ikarus] | 3 |
| Trojan-Spy.Win32.Banker.RM [Ikarus] | 3 |
| Virus.Win32.Sality.s [Ikarus] | 3 |
| Virus.Win32.Virut.q [Ikarus] | 3 |
| Worm.VB.FMU [PC Tools] | 3 |
| Backdoor.Win32.Rbot.rqg [Kaspersky Lab] | 2 |
| Backdoor.Win32.VanBot [Ikarus] | 2 |
| Email-Worm.Win32.Brontok.A [Ikarus] | 2 |
| Email-Worm.Win32.Mydoom.bj [Ikarus] | 2 |
| FakeAlert-AG.gen.c [McAfee] | 2 |
| JS.Chir.B [PC Tools] | 2 |
| Mal/Dorf-A [Sophos] | 2 |
| Mal_Banker [Trend Micro] | 2 |
| PWS-Gamania.gen.a [McAfee] | 2 |
| Trojan.Agent.DEL [PC Tools] | 2 |
| Trojan.Agent.VYJ [PC Tools] | 2 |
| Trojan.DL.AutoIt.DO [PC Tools] | 2 |
| Trojan.Dropper [Symantec] | 2 |
| Trojan.Win32.Agent.aec [Kaspersky Lab] | 2 |
| Trojan-Banker.Win32.Bancos [Ikarus] | 2 |
| Trojan-Dropper.Win32.Small.azk [Ikarus] | 2 |
| Virus.Win32.VB.bg [Ikarus] | 2 |
| W32.Chir.B@mm [Symantec] | 2 |
| W32.Mytob@mm [Symantec] | 2 |
| W32.Rajump [Symantec] | 2 |
| W32.Svich [Symantec] | 2 |
| W32/Dref-AW [Sophos] | 2 |
| W32/Nuwar@MM [McAfee] | 2 |
| Win32.Virtob.2 [Ikarus] | 2 |
| Worm.Poebot.FG [PC Tools] | 2 |
| Worm.VB.AAWD [PC Tools] | 2 |
| Backdoor.Win32.Breplibot [Ikarus] | 1 |
| Backdoor.Win32.Refpron [Ikarus] | 1 |
| BackDoor-DIY [McAfee] | 1 |
| Downloader [Symantec] | 1 |
| Downloader.Zlob!gen.3 [Symantec] | 1 |
| FakeAlert-AR [McAfee] | 1 |
| IM-Worm.Win32.Sohanad.dz [Kaspersky Lab] | 1 |
| IM-Worm.Win32.VB.as [Ikarus] | 1 |
| I-Worm.Brontok.DE [PC Tools] | 1 |
| Mal/Dorf-E, Mal/Heuri-E [Sophos] | 1 |
| Net-Worm.Win32.Kolab.vl [Kaspersky Lab] | 1 |
| not-a-virus:Porn-Dialer.Win32.Agent.bk [Ikarus] | 1 |
| Packer.PrivateExeProtector.A [Ikarus] | 1 |
| PE_DZAN.A [Trend Micro] | 1 |
| PE_SALITY.AM [Trend Micro] | 1 |
| Possible_DLDER [Trend Micro] | 1 |
| PWS-Banker.gen.aa [McAfee] | 1 |
| QHosts-77 [McAfee] | 1 |
| Troj/QHost-AD [Sophos] | 1 |
| Trojan Horse [Symantec] | 1 |
| Trojan.Qhost.EU [PC Tools] | 1 |
| Trojan.Win32.Anomaly.D [Ikarus] | 1 |
| Trojan.Win32.Crypt.mv [Ikarus] | 1 |
| Trojan.Win32.Disabler [Ikarus] | 1 |
| Trojan.Win32.Disabler.i [Kaspersky Lab] | 1 |
| Trojan.Win32.FakePowav [Ikarus] | 1 |
| Trojan.Win32.KillAV.iy [Ikarus] | 1 |
| Trojan.Win32.Pakes [Ikarus] | 1 |
| Trojan.Win32.Pakes.kgb [Kaspersky Lab] | 1 |
| Trojan.Win32.Pakes.may [Kaspersky Lab] | 1 |
| Trojan.Win32.Patched [Ikarus] | 1 |
| Trojan-Downloader.Win32.AutoIt.aa [Ikarus] | 1 |
| Trojan-Downloader.Win32.AutoIt.aa [Kaspersky Lab] | 1 |
| Trojan-Downloader.Win32.Banload [Ikarus] | 1 |
| Trojan-Downloader.Win32.Small [Ikarus] | 1 |
| Trojan-Dropper.Agent [Ikarus] | 1 |
| Trojan-Dropper.Small.axz [PC Tools] | 1 |
| Trojan-Dropper.Win32.Agent.vvp [Kaspersky Lab] | 1 |
| Trojan-Dropper.Win32.Cutwail [Ikarus] | 1 |
| Trojan-Dropper.Win32.Cutwail.AL [Ikarus] | 1 |
| Trojan-Dropper.Win32.Renos.H [Ikarus] | 1 |
| Trojan-Dropper.Win32.Vaultac [Ikarus] | 1 |