| Threat Alias | Number of Incidents |
| Virus:Win32/Virut.BI [Microsoft] | 111 |
| W32/Virut.j [McAfee] | 100 |
| W32.Virut.W [Symantec] | 95 |
| W32/Virut-Gen [Sophos] | 87 |
| Virus.Win32.Virut.bw [Kaspersky Lab] | 53 |
| Virus.Win32.Virut.bu [Kaspersky Lab] | 42 |
| Win32/Virut.Gen [AhnLab] | 38 |
| Win32.Virut.U [Ikarus] | 29 |
| Mal/HckPk-A, W32/Virut-Gen [Sophos] | 21 |
| Virus.Win32.Virut.bv [Kaspersky Lab] | 17 |
| Virus.Win32.Virut [Ikarus] | 10 |
| Generic FakeAlert.d [McAfee] | 7 |
| Trojan.Virantix.C [Symantec] | 7 |
| Trojan-Downloader.Win32.Pakernat.A [Ikarus] | 6 |
| Virus.Win32.Sality [Ikarus] | 6 |
| Virus.Win32.Virut.bi [Ikarus] | 6 |
| VirTool.Win32.Obfuscator.DF [Ikarus] | 4 |
| Backdoor.Win32.Bifrose [Ikarus] | 3 |
| Packer.Malware.Lighty.O [Ikarus] | 3 |
| Trojan.Pandex [Symantec] | 3 |
| Backdoor.Win32.PoisonIvy.az [Ikarus] | 2 |
| Downloader-ASH.gen.b [McAfee] | 2 |
| FakeAlert-AG.gen.c [McAfee] | 2 |
| Generic PWS.ak [McAfee] | 2 |
| Infostealer [Symantec] | 2 |
| Mal/Bifrose-S, W32/Virut-Gen [Sophos] | 2 |
| Virus.Virut.bv [PC Tools] | 2 |
| Virus.Win32.Virut.bu [Ikarus] | 2 |
| Backdoor [Ikarus] | 1 |
| Backdoor.Bifrose [Symantec] | 1 |
| Backdoor.Pigeon [Ikarus] | 1 |
| Backdoor.Prorat [Symantec] | 1 |
| Backdoor.Rustock [Ikarus] | 1 |
| Backdoor.SdBot [Ikarus] | 1 |
| Backdoor.Win32.Beastdoor [Ikarus] | 1 |
| Backdoor.Win32.Hupigon [Ikarus] | 1 |
| Backdoor.Win32.Prorat.dz [Kaspersky Lab] | 1 |
| Backdoor.Win32.VB [Ikarus] | 1 |
| Backdoor:Win32/Prorat.K [Microsoft] | 1 |
| Downloader [Symantec] | 1 |
| Email-Worm.Win32.Generic [Ikarus] | 1 |
| Email-Worm.Win32.Mydoom.bj [Ikarus] | 1 |
| I-Worm.Chir.B [PC Tools] | 1 |
| Mal/Generic-A, W32/Virut-Gen [Sophos] | 1 |
| Mal/TinyDL-T, Mal/HckPk-A, W32/Virut-Gen [Sophos] | 1 |
| Malware.Virut [PC Tools] | 1 |
| Packed.Win32.Koblu [Ikarus] | 1 |
| Packed.Win32.Krap [Ikarus] | 1 |
| Spam-Mailbot [McAfee] | 1 |
| Troj/SpamToo-AX [Sophos] | 1 |
| Trojan Horse [Symantec] | 1 |
| Trojan.Agent.DEL [PC Tools] | 1 |
| Trojan.Midgare.EYZ [PC Tools] | 1 |
| Trojan.StartPage.WZ [PC Tools] | 1 |
| Trojan.Win32.Pakes [Ikarus] | 1 |
| Trojan.Win32.ProcessHijack [Ikarus] | 1 |
| Trojan.Win32.Tibs [Ikarus] | 1 |
| Trojan-Banker.Win32.Bancos [Ikarus] | 1 |
| Trojan-Downloader.Win32.Tibs.kue [Ikarus] | 1 |
| Trojan-Downloader.Win32.Tiny.byx [Kaspersky Lab] | 1 |
| Trojan-Dropper.Kobcka [Ikarus] | 1 |
| Trojan-Dropper.Win32.Cutwail.AL [Ikarus] | 1 |
| Trojan-Dropper.Win32.Small.aww [Ikarus] | 1 |
| TrojanDropper:Win32/Cutwail [Microsoft] | 1 |
| Trojan-Proxy.Win32.Delf.av [Ikarus] | 1 |
| VirTool.Win32.DelfInject [Ikarus] | 1 |
| Virus.Trojan.Win32.Agent.agsl [Ikarus] | 1 |
| Virus.Trojan.Win32.VB [Ikarus] | 1 |
| Virus.Win32.Prorat [Ikarus] | 1 |
| Virus.Win32.Sality.s [Ikarus] | 1 |
| Virus.Win32.Virut.bw [Ikarus] | 1 |
| W32.Gammima.AG [Symantec] | 1 |
| W32.Mytob@mm [Symantec] | 1 |
| W32.Sality.Y [Ikarus] | 1 |
| W32.Traxg@mm [Symantec] | 1 |
| W32/Chir-B [Sophos] | 1 |
| Win32.Alman.B [PC Tools] | 1 |
| Win32.NGVCK.TTD [Ikarus] | 1 |
| Worm:Win32/VB.AM [Microsoft] | 1 |