| Threat Alias | Number of Incidents |
| Hacktool.Rootkit [Symantec] | 182 |
| BackDoor-CKB.sys [McAfee] | 174 |
| Backdoor:WinNT/PcClient.gen [Microsoft] | 153 |
| Trojan-Dropper.Win32.Mudrop.mk [Kaspersky Lab] | 135 |
| Dropper/Mudrop.5632 [AhnLab] | 72 |
| Troj/RootF-Gen [Sophos] | 72 |
| Hacktool.Rootkit!sd6 [PC Tools] | 70 |
| Trojan-Downloader.Delf.ADY [PC Tools] | 36 |
| Bloodhound.Unknown [Symantec] | 34 |
| Mal/Generic-A [Sophos] | 29 |
| Trojan.Farfli [Symantec] | 26 |
| Trojan Horse [Symantec] | 24 |
| Generic.dx [McAfee] | 22 |
| Trojan-Dropper.Win32.Mudrop.kv [Kaspersky Lab] | 20 |
| Email-Worm.Win32.Bagle.adk [Kaspersky Lab] | 19 |
| Email-Worm.Bagle!sd6 [PC Tools] | 18 |
| Trojan:WinNT/Koutodoor.A [Microsoft] | 18 |
| Trojan-Downloader.Adload.HO [PC Tools] | 18 |
| Trojan-Dropper.Mudrop!ct [PC Tools] | 18 |
| Email-Worm.Win32.Bagle [Ikarus] | 16 |
| Troj/Bckdr-QQV [Sophos] | 16 |
| BackDoor-DTL.sys [McAfee] | 8 |
| TROJ_FARFLI.FOZQ [Trend Micro] | 8 |
| Win32/Bagle.worm.2112 [AhnLab] | 8 |
| Generic BackDoor [McAfee] | 4 |
| Generic Downloader.x [McAfee] | 4 |
| TrojanDownloader:WinNT/Nupylos.A [Microsoft] | 4 |
| Win-Trojan/Rootkit.16512 [AhnLab] | 4 |
| Win-Trojan/Xema.variant [AhnLab] | 4 |
| BackDoor-DSN!sys [McAfee] | 3 |
| Trojan:WinNT/Chon.gen!A [Microsoft] | 3 |
| Worm:Win32/Forput!rts [Microsoft] | 3 |
| Backdoor.Trojan [Symantec] | 2 |
| Downloader-BLZ [McAfee] | 2 |
| Hacktool.Rootkit [PC Tools] | 2 |
| Infostealer.Gampass [Symantec] | 2 |
| Trojan.Win32.SpBot [Ikarus] | 2 |
| Trojan.Win32.SpBot.q [Kaspersky Lab] | 2 |
| Trojan.Win32.SpBot.t [Kaspersky Lab] | 2 |
| Trojan:Win32/Cinmus.I [Microsoft] | 2 |
| TrojanDownloader:Win32/Ahgepad.A [Microsoft] | 2 |
| Trojan-GameThief.Win32.Magania.alst [Kaspersky Lab] | 2 |
| Adware.Cinmus [PC Tools] | 1 |
| Adware-Cinmus [McAfee] | 1 |
| Adware-Cinmus!sys.gen [McAfee] | 1 |
| Backdoor.Haxdoor [Symantec] | 1 |
| Backdoor.Rustock.B [Symantec] | 1 |
| Backdoor.Trojan [PC Tools] | 1 |
| Backdoor.Win32.Agent.aofm [Kaspersky Lab] | 1 |
| Backdoor.Win32.Agent.aofy [Kaspersky Lab] | 1 |
| Backdoor.Win32.NewRest.ao [Kaspersky Lab] | 1 |
| Backdoor.Win32.PcClient.aif [Kaspersky Lab] | 1 |
| Backdoor.Win32.PcClient.auf [Kaspersky Lab] | 1 |
| Backdoor.Win32.PcClient.cfu [Kaspersky Lab] | 1 |
| Backdoor.Win32.PcClient.xy [Kaspersky Lab] | 1 |
| Backdoor:Win32/PcClient.XY [Microsoft] | 1 |
| Backdoor:WinNT/Nuwar.B!sys [Microsoft] | 1 |
| Backdoor:WinNT/Rustock.E [Microsoft] | 1 |
| Backdoor:WinNT/Rustock.F [Microsoft] | 1 |
| Backdoor:WinNT/Rustock.H [Microsoft] | 1 |
| BackDoor-BAC.gen [McAfee] | 1 |
| Dropper/Koobface.19456 [AhnLab] | 1 |
| Email-Worm.Win32.Zhelatin.pz [Kaspersky Lab] | 1 |
| Generic BackDoor!cn [McAfee] | 1 |
| Generic BackDoor!fu [McAfee] | 1 |
| Generic Rootkit.g [McAfee] | 1 |
| Generic Rootkit.z [McAfee] | 1 |
| Generic.dx!cmk [McAfee] | 1 |
| Generic.dx!hkz [McAfee] | 1 |
| Generic.dx!vx [McAfee] | 1 |
| Mal/Behav-204 [Sophos] | 1 |
| Mal/Kouto-B [Sophos] | 1 |
| Mal/RootKit-Fam [Sophos] | 1 |
| Mal/TDSSPack-G [Sophos] | 1 |
| Mal/UnkPack-Fam [Sophos] | 1 |
| not-a-virus:AdWare.Win32.Cinmus.ehu [Kaspersky Lab] | 1 |
| not-a-virus:AdWare.Win32.Cinmus.syk [Kaspersky Lab] | 1 |
| PWS-Mmorpg.gen [McAfee] | 1 |
| Rootkit.Cinmus.Gen.6 [PC Tools] | 1 |
| Rootkit.Win32.Agent.ask [Kaspersky Lab] | 1 |
| Rootkit.Win32.Agent.iph [Kaspersky Lab] | 1 |
| Rootkit.Win32.Agent.irr [Kaspersky Lab] | 1 |
| Rootkit.Win32.Agent.lya [Kaspersky Lab] | 1 |
| Rootkit.Win32.Agent.mfx [Kaspersky Lab] | 1 |
| Rootkit.Win32.Agent.wqz [Kaspersky Lab] | 1 |
| Troj/Dorf-Fam [Sophos] | 1 |
| Troj/NtRootK-ED [Sophos] | 1 |
| Troj/NTRootk-FE [Sophos] | 1 |
| Troj/RKReg-Fam [Sophos] | 1 |
| Troj/Rootkit-ET [Sophos] | 1 |
| TROJ_DLOADR.FRFL [Trend Micro] | 1 |
| Trojan.Cinmeng [Symantec] | 1 |
| Trojan.DL.Tibs.JQ [PC Tools] | 1 |
| Trojan.Dropper [Symantec] | 1 |
| Trojan.Peacomm.D [Symantec] | 1 |
| Trojan.SpBot!sd6 [PC Tools] | 1 |
| Trojan.Win32.Agent.aqlb [Kaspersky Lab] | 1 |
| Trojan:WinNT/Padstew.A [Microsoft] | 1 |
| Trojan-Downloader.Win32.Agent.agtm [Kaspersky Lab] | 1 |
| Trojan-Downloader.Win32.Agent.aqsw [Kaspersky Lab] | 1 |
