| Threat Alias | Number of Incidents |
| W32.Virut.CF [Symantec] | 2,871 |
| Virus.Win32.Virut.ce [Kaspersky Lab] | 2,772 |
| Virus:Win32/Virut.BM [Microsoft] | 2,324 |
| Win32/Virut.F [AhnLab] | 2,074 |
| W32/Virut.n.gen [McAfee] | 1,883 |
| Win32/Virut.E [AhnLab] | 808 |
| Malware.Virut [PC Tools] | 470 |
| New Win32 [McAfee] | 420 |
| Virus:Win32/Virut.gen!O [Microsoft] | 340 |
| New Win32.g4 [McAfee] | 147 |
| W32/Virut.n [McAfee] | 133 |
| Virus.Win32.Virut [Ikarus] | 116 |
| PE_VIRUX.H-3 [Trend Micro] | 111 |
| Virus:Win32/Virut.gen!E [Microsoft] | 92 |
| Virus.Win32.Sality [Ikarus] | 83 |
| New Poly Win32 [McAfee] | 57 |
| PE_VIRUX.E-2 [Trend Micro] | 56 |
| Virus.Win32.Virut.bo [Ikarus] | 41 |
| PE_VIRUX.E-3 [Trend Micro] | 36 |
| Trojan-Downloader.Win32.Agent.czsd [Kaspersky Lab] | 34 |
| Trojan-Banker.Win32.Bancos [Ikarus] | 32 |
| PE_VIRUX.A-1 [Trend Micro] | 30 |
| PE_VIRUX.F-2 [Trend Micro] | 28 |
| Virus.Win32.Bifrose [Ikarus] | 25 |
| Spam-Mailbot [McAfee] | 24 |
| New Win32.g2 [McAfee] | 23 |
| not-a-virus:Porn-Dialer.Win32.Agent.bk [Ikarus] | 23 |
| W32.Virut [Ikarus] | 22 |
| PE_VIRUX.F-3 [Trend Micro] | 21 |
| Virus.Virut.j [PC Tools] | 21 |
| Backdoor.Win32.Small.uc [Kaspersky Lab] | 20 |
| Trojan-Spy.Win32.Banker.RM [Ikarus] | 20 |
| Trojan.Win32.Banker [Ikarus] | 19 |
| Trojan-Downloader.Win32.Cutwail [Ikarus] | 19 |
| PE_VIRUX.A [Trend Micro] | 17 |
| Trojan:Win32/Puzlice.A [Microsoft] | 17 |
| Exploit.Win32.IMG-WMF [Ikarus] | 16 |
| Trojan-Dropper.Agent [Ikarus] | 16 |
| TrojanDropper:Win32/Puzlice.A [Microsoft] | 16 |
| Trojan-Spy.Win32.VB [Ikarus] | 16 |
| Backdoor.Win32.Popwin [Ikarus] | 15 |
| Spammer [Ikarus] | 13 |
| Virus.Win32.Virut.q [Ikarus] | 13 |
| Backdoor.Win32.Beastdoor [Ikarus] | 12 |
| Backdoor.Win32.Bifrose [Ikarus] | 12 |
| New Win32.g3 [McAfee] | 12 |
| VirTool.Win32.DelfInject [Ikarus] | 11 |
| Virus.Win32.Virtob [Ikarus] | 11 |
| Generic PWS.ak [McAfee] | 10 |
| Spam-Mailbot.h.gen.a [McAfee] | 10 |
| Trojan.Win32.Agent2.hxw [Kaspersky Lab] | 10 |
| Trojan-Downloader.Win32.Banload [Ikarus] | 10 |
| Backdoor.Win32.Refpron [Ikarus] | 9 |
| Packed.Win32.Koblu [Ikarus] | 9 |
| PE_VIRUX.E-4 [Trend Micro] | 9 |
| Trojan-Clicker.Win32.Delf [Ikarus] | 9 |
| Trojan-Clicker.Win32.VB [Ikarus] | 9 |
| Trojan-Downloader.Win32.Small [Ikarus] | 9 |
| TrojanProxy:Win32/Slenugga.A [Microsoft] | 9 |
| Virus.Win32.Virut.n [Ikarus] | 9 |
| PE_VIRUX.D-1 [Trend Micro] | 8 |
| PE_VIRUX.J-4 [Trend Micro] | 8 |
| Spy-Agent.bv.gen.b [McAfee] | 8 |
| Trojan Horse [Symantec] | 8 |
| Virus:Win32/Virut.gen!N [Microsoft] | 8 |
| Trojan.Win32.Patched [Ikarus] | 7 |
| Trojan-Dropper [Ikarus] | 7 |
| Win32.Cadoiac.A [Ikarus] | 7 |
| Backdoor:Win32/Refpron.M [Microsoft] | 6 |
| Downloader [Symantec] | 6 |
| Gen.Malware [Ikarus] | 6 |
| Trojan-Dropper.VB.ggm [PC Tools] | 6 |
| W32.SillyFDC [Symantec] | 6 |
| Win32.Virtob [Ikarus] | 6 |
| Win-Trojan/Spammer.31744 [AhnLab] | 6 |
| Backdoor.Win32.Small.uh [Kaspersky Lab] | 5 |
| Packed.Win32.Krap.b [Kaspersky Lab] | 5 |
| Trojan.Crypt [Ikarus] | 5 |
| Trojan.Win32.VB [Ikarus] | 5 |
| Trojan-Clicker.VB.cwf [PC Tools] | 5 |
| Trojan-Clicker.Win32.VB.cvg [Ikarus] | 5 |
| Trojan-Downloader.LoadAdv [Ikarus] | 5 |
| Trojan-Downloader.Win32.Zlob [Ikarus] | 5 |
| Trojan-PWS.Win32.LdPinch [Ikarus] | 5 |
| Trojan-Spy.Win32.Banker [Ikarus] | 5 |
| VirTool.Win32.VBInject [Ikarus] | 5 |
| Vundo.gen.aq [McAfee] | 5 |
| W32.Imaut [Symantec] | 5 |
| W32.IRCBot [Symantec] | 5 |
| W32/Sality.gen [McAfee] | 5 |
| Win32/ReaBot.worm.60929 [AhnLab] | 5 |
| Worm.Win32.AutoRun [Ikarus] | 5 |
| Worm:Win32/Taterf.B [Microsoft] | 5 |
| Backdoor.Win32.Poison [Ikarus] | 4 |
| Backdoor.Win32.PoisonIvy.az [Ikarus] | 4 |
| Backdoor.Win32.VB [Ikarus] | 4 |
| P2P-Worm.Win32.Palevo [Ikarus] | 4 |
| PE_VIRUX.J-3 [Trend Micro] | 4 |
| PWS-Banker [McAfee] | 4 |
| Trojan.Autoit [Ikarus] | 4 |