| Threat Alias | Number of Incidents |
| W32/Hakaglan.inf [McAfee] | 278,226 |
| Worm.Autorun.BJ [PC Tools] | 222,894 |
| Trojan.Win32.AutoRun.a [Kaspersky Lab] | 130,500 |
| BackDoor-CZP [McAfee] | 63,154 |
| Troj/Agent-GMF [Sophos] | 59,079 |
| Backdoor.Win32.Turkojan.ake [Kaspersky Lab] | 58,261 |
| BKDR_TURKOJAN.AT [Trend Micro] | 56,028 |
| Backdoor.Turkojan [PC Tools] | 54,000 |
| Trojan:Win32/Turkojan.A!dll [Microsoft] | 54,000 |
| W32/AutoRun-KU [Sophos] | 52,200 |
| Trojan.Win32.AutoRun [Ikarus] | 45,003 |
| Win-Trojan/Turkojan.7168.M [AhnLab] | 38,773 |
| Generic.dx [McAfee] | 38,256 |
| Worm:Win32/Autorun!inf [Microsoft] | 34,975 |
| Backdoor.Turkojan.AO [Ikarus] | 26,999 |
| W32/AutoRun-MO [Sophos] | 23,446 |
| Backdoor.Ciadoor [Symantec] | 20,538 |
| Generic!atr [McAfee] | 19,133 |
| Trojan.Win32.Agent.abt [Kaspersky Lab] | 17,870 |
| BAT.Botget.C [PC Tools] | 17,867 |
| Mal/Generic-A [Sophos] | 15,962 |
| Backdoor.Win32.Turkojan [Ikarus] | 15,736 |
| not-a-virus:AdWare.Win32.BHO.ee [Kaspersky Lab] | 13,124 |
| Trojan.Generic [PC Tools] | 9,766 |
| Adware.BHO!sd5 [PC Tools] | 8,131 |
| TROJ_DELF.EFH [Trend Micro] | 7,511 |
| Worm.AutoRun.GEN [PC Tools] | 6,869 |
| Worm.Win32.AutoRun.lxz [Kaspersky Lab] | 6,786 |
| Packed/Upack [AhnLab] | 6,730 |
| WORM_PALEVO.SMI [Trend Micro] | 6,540 |
| Trojan.Win32.Agent [Ikarus] | 6,493 |
| Mal/Packer, Mal/EncPk-BW [Sophos] | 6,471 |
| Trojan:Win32/Alureon.gen!J [Microsoft] | 6,267 |
| Trojan-PWS.Win32.Small [Ikarus] | 6,258 |
| Trojan-GameThief.Win32.OnLineGames.abrf.a [Kaspersky Lab] | 5,767 |
| Packed.Win32.Krap.af [Kaspersky Lab] | 5,403 |
| BKDR_MIRCHACK.CE [Trend Micro] | 5,329 |
| DNSChanger.gen [McAfee] | 5,174 |
| Mal/AdvPatch-A, Mal/Broute-A [Sophos] | 5,138 |
| Trojan.Win32.Agent.akwc [Kaspersky Lab] | 5,110 |
| Worm.Win32.AutoRun [Ikarus] | 4,907 |
| Trojan.Zapchast [PC Tools] | 4,893 |
| Trojan-Dropper.Agent [Ikarus] | 4,583 |
| W32/Rimecud [McAfee] | 4,570 |
| Generic Downloader.x [McAfee] | 4,523 |
| W32/AHKHeap [McAfee] | 4,482 |
| Trojan.BAT.Runner.i [Kaspersky Lab] | 4,453 |
| W32/LCJump-B [Sophos] | 3,712 |
| Trojan-Downloader.Agent!sd6 [PC Tools] | 3,674 |
| Trojan-Downloader.Win32.Agent.agzq [Kaspersky Lab] | 3,600 |
| Troj/Agent-FWS [Sophos] | 3,431 |
| Trojan.BAT.Runner [Ikarus] | 3,415 |
| Trojan.Generic.CJ [Ikarus] | 3,125 |
| Virus.Win32.Virut.br [Ikarus] | 3,060 |
| Win-Trojan/Obfuscator.88576.B [AhnLab] | 3,060 |
| Trojan:Win32/Sisproc [Microsoft] | 2,980 |
| Trojan.BAT.Runner.b [Kaspersky Lab] | 2,580 |
| Trojan.Win32.Alureon.J [Ikarus] | 2,486 |
| Rootkit.Win32.Agent [Ikarus] | 2,456 |
| Generic.dx!gzf [McAfee] | 2,401 |
| VirTool:WinNT/Koobface.gen!D [Microsoft] | 2,401 |
| Rootkit.Win32.Agent.wqv [Kaspersky Lab] | 2,352 |
| Mal/Rimecud-A, Mal/Zbot-I [Sophos] | 2,282 |
| Win-Trojan/Xema.variant [AhnLab] | 2,281 |
| JS_SMALLTROJ.XSG [Trend Micro] | 2,256 |
| Trojan.Win32.AutoHK.a [Kaspersky Lab] | 2,256 |
| Adware.BHO.EE [PC Tools] | 2,232 |
| AHKS.Muha.C [PC Tools] | 2,209 |
| VBS.Muha.B [PC Tools] | 2,184 |
| JS_AHKHEAP.A [Trend Micro] | 2,162 |
| Backdoor.Win32.IRCBot.aro [Kaspersky Lab] | 2,091 |
| Trojan-PSW.Win32.Steam.dj [Kaspersky Lab] | 1,908 |
| Worm:Win32/Autorun.GY!inf [Microsoft] | 1,856 |
| Trojan.Win32.Agent.aoe [Kaspersky Lab] | 1,796 |
| Worm.Autorun.BK [PC Tools] | 1,786 |
| Trojan.BAT.KillFiles.gh [Kaspersky Lab] | 1,755 |
| Trojan-PSW.Steam!sd6 [PC Tools] | 1,484 |
| Win-Trojan/Xema.149742 [AhnLab] | 1,460 |
| Adware:Win32/Owlforce [Microsoft] | 1,398 |
| W32/AHKHeap.inf [McAfee] | 1,363 |
| Backdoor.IRCBot.UUX [PC Tools] | 1,343 |
| Downloader.gen.a [McAfee] | 1,318 |
| W32/AHKHeap-A [Sophos] | 1,231 |
| Trojan.Peed [Ikarus] | 1,203 |
| Trojan.Alureon.J [PC Tools] | 1,190 |
| Mal/EncPk-GF [Sophos] | 1,175 |
| W32/Sdbot.worm [McAfee] | 1,166 |
| Trojan-Downloader.Agent.NZW [PC Tools] | 1,106 |
| Trojan-Downloader.Win32.Small [Ikarus] | 1,099 |
| Win-Trojan/Agent.1097728.B [AhnLab] | 1,078 |
| VBS/InfSR-A [Sophos] | 1,034 |
| Trojan.Crypt [Ikarus] | 1,016 |
| Trojan:Win32/Insebro.C [Microsoft] | 976 |
| VBS/Xema [AhnLab] | 967 |
| BackDoor-CJV [McAfee] | 954 |
| Application.Whitelist [PC Tools] | 945 |
| VBS_FAKEALER.HJ [Trend Micro] | 932 |
| Mal/Packer [Sophos] | 929 |
| VBS/FakeAlert-AB [McAfee] | 916 |
| Trojan.BHO!sd6 [PC Tools] | 905 |
|