| Threat Alias | Number of Incidents |
| not-a-virus:NetTool.Win32.Agent.b [Kaspersky Lab] | 155,630 |
| Trojan:Win32/Pepatch.E [Microsoft] | 144,992 |
| Trojan-Downloader.Agent.AEN [PC Tools] | 120,170 |
| BackDoor-AWQ [McAfee] | 94,958 |
| Mal/Packer, Mal/EncPk-AI [Sophos] | 77,224 |
| Mal/EncPk-AI [Sophos] | 68,950 |
| Generic Malware.bc [McAfee] | 43,340 |
| Trojan-Dropper.Agent [Ikarus] | 42,349 |
| Mal_MLWR-5 [Trend Micro] | 40,582 |
| Generic.dx [McAfee] | 36,900 |
| Exploit.Win32.IMG-WMF.fk [Kaspersky Lab] | 36,675 |
| Troj/PWS-AXY [Sophos] | 28,036 |
| Exploit.Win32.IMG-WMF [Ikarus] | 23,472 |
| Virus.Win32.Virtualizer [Ikarus] | 22,458 |
| Exploit.IMG-WMF!sd6 [PC Tools] | 19,397 |
| not-a-virus:PSWTool.Win32.MailPassView.as [Kaspersky Lab] | 17,693 |
| Exploit.IMG-WMF [PC Tools] | 16,952 |
| Rootkit.DR.CryptPack.A [PC Tools] | 16,770 |
| Generic PWS.y!q [McAfee] | 16,640 |
| Generic Dropper.ex [McAfee] | 14,904 |
| not-a-virus:PSWTool.Win32.Messen [Ikarus] | 14,898 |
| Win-Trojan/ExploitTool.3740 [AhnLab] | 12,877 |
| Trojan.Win32.KillAV.ne [Kaspersky Lab] | 12,870 |
| Troj/RkSal-A [Sophos] | 11,830 |
| Packed.Generic.181 [Symantec] | 11,573 |
| Worm:WinNT/Sality.AH!sys [Microsoft] | 11,570 |
| not-a-virus:NetTool.Win32.Agent.b [Ikarus] | 10,638 |
| Trojan.Zlob [Ikarus] | 10,595 |
| NTRootKit-AB [McAfee] | 10,014 |
| PSWTool.MailPassView!sd6 [PC Tools] | 8,648 |
| Backdoor.Win32.Popwin [Ikarus] | 7,486 |
| Trojan.Win32.KillAV [Ikarus] | 6,890 |
| ProcKill-EC [McAfee] | 6,760 |
| HackTool:Win32/Mailpassview [Microsoft] | 6,500 |
| TROJ_KILLAV.GN [Trend Micro] | 6,110 |
| Win-Trojan/AVKill.5077 [AhnLab] | 5,590 |
| Mal/Generic-A [Sophos] | 4,890 |
| Trojan-PWS.Win32.Maran [Ikarus] | 4,728 |
| not-a-virus:NetTool.Win32.Agent [Ikarus] | 4,334 |
| Win-Trojan/HackTool.13531 [AhnLab] | 3,940 |
| PWSTool.MailPassView!sd6 [PC Tools] | 2,244 |
| Generic PUP.x [McAfee] | 2,068 |
| Mal/EncPk-AI, Mal/Packer [Sophos] | 1,970 |
| TROJ_NSPM.RD [Trend Micro] | 1,576 |
| Trojan-Spy.Banker.GEN [PC Tools] | 1,560 |
| Trojan.Win32.KillAV.ne [Ikarus] | 1,430 |
| Backdoor.Win32.Popwin.beg [Ikarus] | 1,182 |
| Packed/NSPack [PC Tools] | 1,182 |
| Win-Trojan/Xema.variant [AhnLab] | 1,147 |
| not-a-virus:PSWTool.Win32.NetPass.et [Kaspersky Lab] | 992 |
| Exploit.Win32.IMG-WMF.ex [Kaspersky Lab] | 978 |
| Virus.Win32.Sality [Ikarus] | 915 |
| Tool:Win32/IEPassRecover.A [Microsoft] | 841 |
| Trojan.StartPage.AKF [PC Tools] | 815 |
| PSWTool.NetPass!sd6 [PC Tools] | 698 |
| not-a-virus:PSWTool.Win32.NetPass [Ikarus] | 652 |
| not-a-virus:PSWTool.Win32.NetPass.q [Kaspersky Lab] | 484 |
| HackTool.Win32.Homac [Kaspersky Lab] | 476 |
| HackTool.Homac!sd5 [PC Tools] | 401 |
| not-a-virus:PSWTool.Win32.NetPass.b [Ikarus] | 396 |
| not-a-virus:PSWTool.Win32.MailPassView.ae [Kaspersky Lab] | 380 |
| not-a-virus:PSWTool.Win32.FirePass.af [Kaspersky Lab] | 378 |
| PSWTool.NetPass!sd5 [PC Tools] | 374 |
| PSWTool.FirePass!sd6 [PC Tools] | 344 |
| not-a-virus:PSWTool.Win32.PasswordFox [Ikarus] | 342 |
| Generic PWS.y [McAfee] | 331 |
| HackTool:Win32/Homac.A [Microsoft] | 330 |
| Mal/Packer [Sophos] | 311 |
| HackTool.Win32.Homac [Ikarus] | 289 |
| HackTool.Agent!sd5 [PC Tools] | 256 |
| Hacktool.Generic [PC Tools] | 256 |
| Win-Trojan/HackTool.7200 [AhnLab] | 242 |
| Virus.Win32.Trojan [Ikarus] | 235 |
| not-a-virus:PSWTool.Win32.NetPass.et [Ikarus] | 232 |
| HackTool.Win32.Agent.eh [Kaspersky Lab] | 224 |
| not-a-virus:PSWTool.Win32.NetPass.eg [Kaspersky Lab] | 220 |
| TSPY_ONLINE.BRU [Trend Micro] | 196 |
| PWSTool.NetPass!sd6 [PC Tools] | 188 |
| HackTool.Win32.Agent [Ikarus] | 178 |
| Generic PUP.b [McAfee] | 173 |
| Trojan-PSW.OnLineGames!sd5 [PC Tools] | 162 |
| Troj/Xarp-A [Sophos] | 137 |
| Win-Trojan/ARPSpoof.20480 [AhnLab] | 128 |
| not-a-virus:PSWTool.Win32.NetPass.jd [Kaspersky Lab] | 126 |
| Trojan-PSW.Win32.OnLineGames.xkv [Kaspersky Lab] | 84 |
| Generic PUP.z [McAfee] | 80 |
| not-a-virus:PSWTool.Win32.NetPass.fv [Kaspersky Lab] | 78 |
| PSWTool.RAS!sd5 [PC Tools] | 70 |
| Mal/Heuri-D [Sophos] | 66 |
| not-a-Virus.Keygen.Adobe [Ikarus] | 66 |
| not-a-virus:PSWTool.Win32.NetPass.ju [Kaspersky Lab] | 64 |
| not-a-virus:PSWTool.Win32.FirePass.a [Kaspersky Lab] | 63 |
| not-a-virus:PSWTool.Win32.NetPass.jj [Kaspersky Lab] | 63 |
| not-a-virus:Client-IRC.Win32.mIRC.603 [Kaspersky Lab] | 56 |
| not-a-virus:PSWTool.Win32.SnadBoy.2011 [Kaspersky Lab] | 56 |
| not-a-virus:PSWTool.Win32.RAS.a [Kaspersky Lab] | 52 |
| Generic PWS.y!zy [McAfee] | 49 |
| Generic PWS.y!za [McAfee] | 48 |
| HackTool:Win32/Passview [Microsoft] | 48 |
| not-a-virus:PSWTool.Win32.IEPassView.ar [Kaspersky Lab] | 48 |