| Threat Alias | Number of Incidents |
| VirTool.Win32.CeeInject [Ikarus] | 397 |
| Trojan Horse [Symantec] | 156 |
| Generic.dx [McAfee] | 104 |
| Mal/Behav-243 [Sophos] | 92 |
| Win-Trojan/Xema.variant [AhnLab] | 84 |
| Backdoor.Trojan [Symantec] | 61 |
| W32.Spybot.Worm [Symantec] | 61 |
| Mal/Generic-A [Sophos] | 56 |
| Infostealer [Symantec] | 53 |
| W32/Inject-DE [Sophos] | 50 |
| W32/Koobface.worm.gen [McAfee] | 45 |
| Downloader [Symantec] | 43 |
| W32/Spybot.worm.gen [McAfee] | 43 |
| Trojan.Win32.Midgare.ppr [Kaspersky Lab] | 42 |
| Virus.Win32.Poison.HJ [Ikarus] | 41 |
| Trojan-Dropper.Agent [Ikarus] | 38 |
| Generic Dropper.dq [McAfee] | 34 |
| Trojan-Downloader.Win32.Small [Ikarus] | 29 |
| Backdoor.IRCBot!sd6 [PC Tools] | 28 |
| Trojan.Dropper [Symantec] | 27 |
| Generic PUP.x [McAfee] | 26 |
| VirTool.Win32.CeeInject.J [Ikarus] | 26 |
| Trojan.Midgare!sd6 [PC Tools] | 25 |
| W32.IRCBot [Symantec] | 23 |
| Worm.Win32.AutoRun.erh [Kaspersky Lab] | 23 |
| Backdoor.Bifrose [Symantec] | 21 |
| Backdoor.Win32.Bifrose [Ikarus] | 21 |
| Troj/Mdrop-BZI [Sophos] | 21 |
| W32/Xirtem@MM [McAfee] | 21 |
| Mal/Generic-E [Sophos] | 20 |
| Win-Trojan/Buzus.29184.AK [AhnLab] | 20 |
| Mudgare [McAfee] | 19 |
| Packed.Win32.Tdss.c [Kaspersky Lab] | 19 |
| Trojan.Win32.Agent.aeep [Kaspersky Lab] | 17 |
| Trojan-Dropper.Poison.B [Ikarus] | 17 |
| Troj/Agent-HSW [Sophos] | 16 |
| Trojan.Agent.aeep [PC Tools] | 15 |
| VirTool.Win32.Injector.b [Ikarus] | 15 |
| Backdoor.IRC.Bot [Symantec] | 14 |
| Generic BackDoor [McAfee] | 14 |
| Generic Downloader.x [McAfee] | 14 |
| Trojan.Generic [PC Tools] | 14 |
| Trojan.Win32.Agent.aodx [Kaspersky Lab] | 14 |
| W32/Sdbot.worm [McAfee] | 14 |
| Backdoor.Win32.IRCBot [Ikarus] | 13 |
| Backdoor.Rbot [Ikarus] | 12 |
| Backdoor.Win32.IRCBot.hrx [Kaspersky Lab] | 12 |
| BackDoor-DVT [McAfee] | 12 |
| Mal/Behav-043 [Sophos] | 12 |
| VirTool.Win32.Injector [Ikarus] | 12 |
| Virus.Win32.CeeInject [Ikarus] | 12 |
| W32/Patcher [McAfee] | 12 |
| Win-Trojan/Midgare.69091 [AhnLab] | 12 |
| Mal/Bifrose-O [Sophos] | 11 |
| Mal/EncPk-FL [Sophos] | 11 |
| not-a-virus:RiskTool.Win32.Crypter.c [Kaspersky Lab] | 11 |
| Trojan.Agent!sd6 [PC Tools] | 11 |
| Trojan-Downloader.Small.aftm [PC Tools] | 11 |
| Trojan-Downloader.Win32.Small.adjy [Kaspersky Lab] | 11 |
| Win32/IRCBot.worm.variant [AhnLab] | 11 |
| Backdoor.Win32.Bifrose.afqy [Kaspersky Lab] | 10 |
| New Win32 [McAfee] | 10 |
| Suspicious.MH690 [Symantec] | 10 |
| Trojan.KillAV [Symantec] | 10 |
| Trojan.Win32.AntiAV.tz [Kaspersky Lab] | 10 |
| VirTool:Win32/Injector.gen!AH [Microsoft] | 10 |
| Worm.Win32.AutoRun [Ikarus] | 10 |
| Worm.Win32.AutoRun.rkz [Kaspersky Lab] | 10 |
| Backdoor.Win32.IRCBot.gmv [Kaspersky Lab] | 9 |
| Backdoor.Win32.IRCBot.hlq [Kaspersky Lab] | 9 |
| Backdoor.Win32.IRCBot.hsy [Kaspersky Lab] | 9 |
| Backdoor.Win32.IRCBot.htj [Kaspersky Lab] | 9 |
| Backdoor.Win32.IRCBot.huv [Kaspersky Lab] | 9 |
| Backdoor.Win32.SdBot.kiy [Kaspersky Lab] | 9 |
| Troj/Agent-IXG [Sophos] | 9 |
| Troj/Agent-IXM [Sophos] | 9 |
| Trojan.Crypt [Ikarus] | 9 |
| Trojan.Win32.Buzus.amfz [Kaspersky Lab] | 9 |
| W32/Autorun-XI [Sophos] | 9 |
| Backdoor.Bifrose!sd6 [PC Tools] | 8 |
| Backdoor.IRCBot.gix [PC Tools] | 8 |
| Mal/Dropper-AB [Sophos] | 8 |
| Packed.Win32.Krap [Ikarus] | 8 |
| Packed.Win32.Krap.k [Kaspersky Lab] | 8 |
| Troj/IRCBot-ADQ [Sophos] | 8 |
| Trojan.Win32.Agent.aefh [Kaspersky Lab] | 8 |
| Trojan.Win32.Agent2.dfj [Kaspersky Lab] | 8 |
| Trojan.Win32.Buzus [Ikarus] | 8 |
| Trojan.Win32.Midgare.qnl [Kaspersky Lab] | 8 |
| Virus.Win32.Agent.GZY [Ikarus] | 8 |
| W32.Ackantta@mm [Symantec] | 8 |
| Backdoor-CEP [McAfee] | 7 |
| Mal/Behav-103, Mal/Behav-043 [Sophos] | 7 |
| Mal/Bifrose-K [Sophos] | 7 |
| Mal/Packer [Sophos] | 7 |
| Rootkit.TDSS!sd6 [PC Tools] | 7 |
| Trojan-Downloader.Win32.Injecter [Ikarus] | 7 |
| Trojan-Dropper.Win32.Agent.fdl [Kaspersky Lab] | 7 |
| Backdoor.Win32.Bifrose.ains [Kaspersky Lab] | 6 |
| Backdoor.Win32.IRCBot.hzd [Kaspersky Lab] | 6 |