| Threat Alias | Number of Incidents |
| W32.Virut.CF [Symantec] | 342 |
| W32/Scribble-B [Sophos] | 340 |
| Virus.Win32.Virut.ce [Kaspersky Lab] | 294 |
| W32/Virut.n.gen [McAfee] | 248 |
| Win32/Virut.F [AhnLab] | 223 |
| Win32/Virut.E [AhnLab] | 178 |
| New Win32 [McAfee] | 81 |
| Malware.Virut [PC Tools] | 64 |
| New Win32.g4 [McAfee] | 25 |
| Mal/Scribble-C, W32/Scribble-B [Sophos] | 14 |
| Backdoor.Win32.Small.uc [Kaspersky Lab] | 13 |
| New Poly Win32 [McAfee] | 12 |
| Virus.Win32.Virut [Ikarus] | 10 |
| Virus.Win32.JunkPoly [Ikarus] | 9 |
| not-a-virus:Porn-Dialer.Win32.Agent.bk [Ikarus] | 8 |
| Virus.Win32.Sality [Ikarus] | 8 |
| Mal/Scribble-D [Sophos] | 5 |
| Trojan-Downloader.LoadAdv [Ikarus] | 5 |
| Trojan-Spy.Win32.Banker.RM [Ikarus] | 5 |
| Virus.Win32.Virut.bo [Ikarus] | 5 |
| Suspicious.MH690 [Symantec] | 4 |
| Trojan-Banker.Win32.Bancos [Ikarus] | 4 |
| Virus.Win32.Virut.n [Ikarus] | 4 |
| Backdoor.Rustock [Ikarus] | 3 |
| Mal/FakeAV-AX [Sophos] | 3 |
| Mal/HckPk-A [Sophos] | 3 |
| PE_VIRUX.F-2 [Trend Micro] | 3 |
| Spam-Mailbot [McAfee] | 3 |
| Trojan.Pandex [PC Tools] | 3 |
| Trojan.Pandex [Symantec] | 3 |
| Trojan-Clicker.Win32.VB [Ikarus] | 3 |
| Trojan-Downloader.Win32.Zlob [Ikarus] | 3 |
| Backdoor.Win32.Bifrose [Ikarus] | 2 |
| Backdoor.Win32.HareBot.anq [Kaspersky Lab] | 2 |
| Backdoor.Win32.Small.tv [Kaspersky Lab] | 2 |
| Backdoor.Win32.Small.uh [Kaspersky Lab] | 2 |
| Cutwail [McAfee] | 2 |
| Mal/EncPk-HJ, W32/Scribble-B [Sophos] | 2 |
| Mal/FakeAV-AX, W32/Scribble-B [Sophos] | 2 |
| New Malware.fa [McAfee] | 2 |
| Trojan-Downloader.Win32.Cutwail [Ikarus] | 2 |
| W32.Virut [Ikarus] | 2 |
| W32/DelpBck-Gen [Sophos] | 2 |
| Win32/ReaBot.worm.60929 [AhnLab] | 2 |
| Win-Trojan/Agent.11776.KS [AhnLab] | 2 |
| Win-Trojan/Agent.35328.KG [AhnLab] | 2 |
| Backdoor.Win32.Popwin [Ikarus] | 1 |
| Backdoor.Win32.Rbot.hyj [Kaspersky Lab] | 1 |
| Downloader.Delphi [Ikarus] | 1 |
| Exploit.Win32.IMG-WMF [Ikarus] | 1 |
| Gen.Trojan [Ikarus] | 1 |
| Mal/Behav-043, W32/Scribble-B [Sophos] | 1 |
| Mal/Behav-103, Mal/Behav-043, W32/Scribble-B [Sophos] | 1 |
| Mal/Behav-116, Mal/Emogen-Y, W32/Scribble-B [Sophos] | 1 |
| Mal/Bifrose-S [Sophos] | 1 |
| Mal/Bifrose-X, Mal/Midgar-A, Mal/Bifrose-Z, W32/Scribble-B [Sophos] | 1 |
| Mal/Bifrose-Z, W32/Scribble-B [Sophos] | 1 |
| Mal/Generic-A, W32/Scribble-B [Sophos] | 1 |
| Mal/Krap-B, W32/Scribble-B [Sophos] | 1 |
| Mal/MDrop-Gen, W32/Scribble-B [Sophos] | 1 |
| Mal/Scribble-C, Mal/TibsPak, W32/Scribble-B [Sophos] | 1 |
| Mal/SkimTrim-C, W32/Scribble-B [Sophos] | 1 |
| Mal/TibsPak, W32/Scribble-B [Sophos] | 1 |
| Mal/Zlob-AG, W32/Scribble-B [Sophos] | 1 |
| New Win32.g2 [McAfee] | 1 |
| New Win32.g3 [McAfee] | 1 |
| not-a-virus:AdWare.Win32.ISearch [Ikarus] | 1 |
| Packed.Win32.Krap.w [Kaspersky Lab] | 1 |
| PE_VIRUX.F-3 [Trend Micro] | 1 |
| Trojan.Buzus [PC Tools] | 1 |
| Trojan.CryptRedol [Ikarus] | 1 |
| Trojan.Generic [Ikarus] | 1 |
| Trojan.Win32.LipGame.cd [Kaspersky Lab] | 1 |
| Trojan.Win32.Obfuscated [Ikarus] | 1 |
| Trojan.Win32.Patched [Ikarus] | 1 |
| Trojan-Clicker.VB.cwf [PC Tools] | 1 |
| Trojan-Clicker.Win32.Delf [Ikarus] | 1 |
| Trojan-Downloader.Agent [Ikarus] | 1 |
| Trojan-Downloader.Win32.Cbeplay [Ikarus] | 1 |
| Trojan-Downloader.Win32.Delf [Ikarus] | 1 |
| Trojan-Downloader.Win32.Fload [Ikarus] | 1 |
| Trojan-Downloader.Win32.Small [Ikarus] | 1 |
| Trojan-Downloader.Win32.Ufraie [Ikarus] | 1 |
| Trojan-Downloader.Win32.VB.IP [Ikarus] | 1 |
| Trojan-Dropper.Delf [Ikarus] | 1 |
| Trojan-GameThief.Win32.WOW [Ikarus] | 1 |
| Trojan-Proxy.Win32.Agent [Ikarus] | 1 |
| Trojan-PSW.LdPinch.abbc [PC Tools] | 1 |
| Virus.Win32.Virtob [Ikarus] | 1 |
| Virus.Win32.Virut.q [Ikarus] | 1 |
| W32/Autorun.worm.f [McAfee] | 1 |
| Win-Trojan/Downloader.35328.JD [AhnLab] | 1 |