| Threat Alias | Number of Incidents |
| W32/Virut-Gen [Sophos] | 69 |
| W32/Virut.j [McAfee] | 48 |
| Virus:Win32/Virut.BB [Microsoft] | 43 |
| PE_VIRUT.ABY [Trend Micro] | 42 |
| Virus.Win32.Virut.bl [Kaspersky Lab] | 40 |
| Virus.Win32.Virut.n [Kaspersky Lab] | 38 |
| W32/Virut.gen [McAfee] | 36 |
| W32/Vetor-A [Sophos] | 33 |
| Win32.Virut.Gen [PC Tools] | 28 |
| Win32/Virut.Gen [AhnLab] | 28 |
| New Win32 [McAfee] | 24 |
| Virus:Win32/Virut.AH [Microsoft] | 24 |
| PE_VIRUT.XQ [Trend Micro] | 23 |
| PE_VIRUT.ASA [Trend Micro] | 21 |
| Virus:Win32/Virut.BD [Microsoft] | 21 |
| Virus.Win32.Virut.br [Kaspersky Lab] | 19 |
| PE_VIRUT.BO [Trend Micro] | 14 |
| Virus.Win32.Virut.bl [Ikarus] | 14 |
| Virus:Win32/Virut.BL [Microsoft] | 14 |
| Virus.Win32.Virut.cd [Kaspersky Lab] | 10 |
| Trojan.Autorun.UA [Ikarus] | 9 |
| Virus.Win32.Virut.br [Ikarus] | 8 |
| Virus.Win32.Virut [Ikarus] | 7 |
| Trojan-Downloader.Win32.Small [Ikarus] | 5 |
| Virus.Win32.Virut.bd [Kaspersky Lab] | 5 |
| W32/Virut.d [McAfee] | 5 |
| Win32.Virut.Gen.4 [PC Tools] | 5 |
| Worm.Bobax.AB [PC Tools] | 5 |
| WORM_BOBAX.BD [Trend Micro] | 5 |
| Backdoor.Win32.IRCBot.hfw [Kaspersky Lab] | 4 |
| Mal/HckPk-A, W32/Virut-Gen [Sophos] | 4 |
| Trojan-Downloader.Win32.Pakernat.A [Ikarus] | 4 |
| Virus:Win32/Virut.M [Microsoft] | 4 |
| W32/Virut-T [Sophos] | 4 |
| Win32.Virut.N [Ikarus] | 4 |
| Net-Worm.Win32.Bobic.k [Kaspersky Lab] | 3 |
| PE_BOBAX.AK [Trend Micro] | 3 |
| Trojan.DR.Small.AAE [PC Tools] | 3 |
| Trojan-Dropper.Kobcka [Ikarus] | 3 |
| Virus.Virut.cd [PC Tools] | 3 |
| Virus:Win32/Virut.E [Microsoft] | 3 |
| Virus:Win32/Virut.I [Microsoft] | 3 |
| W32/Bobax.worm.gen [McAfee] | 3 |
| Backdoor.Dumador.AV [PC Tools] | 2 |
| FakeAlert-AG.gen.c [McAfee] | 2 |
| Malware.Virut [PC Tools] | 2 |
| Net-Worm.Win32.Bobic.N [Ikarus] | 2 |
| Virus.Win32.RainSong [Ikarus] | 2 |
| W32/Virut-L [Sophos] | 2 |
| Worm:Win32/Bobax.U [Microsoft] | 2 |
| AdWare.Win32.ZenoSearch [Ikarus] | 1 |
| Adware.Zenosearch.T [PC Tools] | 1 |
| Adware-Zeno [McAfee] | 1 |
| Backdoor.Nepoe!sd6 [PC Tools] | 1 |
| Backdoor.Win32.Agent.sca [Kaspersky Lab] | 1 |
| Backdoor.Win32.Frauder.fb [Ikarus] | 1 |
| Backdoor.Win32.IRCBot.gdj [Kaspersky Lab] | 1 |
| Backdoor.Win32.Nepoe.em [Kaspersky Lab] | 1 |
| Backdoor:Win32/Poebot.BA [Microsoft] | 1 |
| Backdoor:Win32/Poebot.BG [Microsoft] | 1 |
| BehavesLike.Trojan-Downloader [Ikarus] | 1 |
| Downloader-ASH.gen.b [McAfee] | 1 |
| Exploit-DcomRpc.gen [McAfee] | 1 |
| Mal/Behav-066, W32/Virut-Gen [Sophos] | 1 |
| Mal/Generic-A [Sophos] | 1 |
| Net-Worm.Win32.Kolabc.bsb [Kaspersky Lab] | 1 |
| New Malware.cc [McAfee] | 1 |
| Packed.Win32.Krap.b [Kaspersky Lab] | 1 |
| Packer.RLPack [Ikarus] | 1 |
| Packer.RLPack.D [Ikarus] | 1 |
| PE_TRATS.A [Trend Micro] | 1 |
| PE_VIRUT.WY [Trend Micro] | 1 |
| PWS:Win32/QQpass.KA [Microsoft] | 1 |
| PWS-Gamania.gen.a [McAfee] | 1 |
| Spy-Agent.bv.gen.b [McAfee] | 1 |
| TROJ_NUWAR.DDJ [Trend Micro] | 1 |
| Trojan.Crypt.NSPM [Ikarus] | 1 |
| Trojan.PWS.QQPass.ALN [PC Tools] | 1 |
| Trojan.Win32.Anomaly.D [Ikarus] | 1 |
| Trojan:Win32/Anomaly.gen!D [Microsoft] | 1 |
| Trojan-Banker.Win32.Bancos [Ikarus] | 1 |
| Trojan-Downloader.Win32.Cutwail [Ikarus] | 1 |
| Trojan-Dropper.Win32.VB.bld [Kaspersky Lab] | 1 |
| Trojan-PSW.Win32.QQPass.aom [Kaspersky Lab] | 1 |
| Trojan-Spy.Drivec [Ikarus] | 1 |
| Virus.Win32.Virut.d [Kaspersky Lab] | 1 |
| Virus.Win32.Virut.f [Ikarus] | 1 |
| Virus.Win32.Virut.n [Ikarus] | 1 |
| Virus.Worm.Win32.AutoRun.dht [Ikarus] | 1 |
| Virus:Win32/Virut.AM [Microsoft] | 1 |
| W32/Koobface.worm.gen.u [McAfee] | 1 |
| W32/Nuwar@MM [McAfee] | 1 |
| W32/Virut.remnants [McAfee] | 1 |
| Win32.SuspectCrc [Ikarus] | 1 |
| Win32.Trats.Gen [PC Tools] | 1 |
| Win32.Virtob.6 [Ikarus] | 1 |
| Win32/Virut.C [AhnLab] | 1 |
| Win-Trojan/Downloader.24474 [AhnLab] | 1 |
| Worm.PoeBot.NN [PC Tools] | 1 |
| Worm:Win32/Hamweq.A [Microsoft] | 1 |