| Threat Alias | Number of Incidents |
| Keylog-Perfect.dldr [McAfee] | 781 |
| Mal/Generic-A [Sophos] | 725 |
| Application.Perfect_Keylogger [PC Tools] | 719 |
| not-a-virus:Monitor.Win32.Perflogger.cb [Kaspersky Lab] | 690 |
| Packed/Upack [AhnLab] | 423 |
| New Malware.aj [McAfee] | 386 |
| TrojanDownloader:Win32/Agent.FZ [Microsoft] | 361 |
| Mal/Packer [Sophos] | 327 |
| Spyware.Perfect [Symantec] | 327 |
| Trojan-Spy.Win32.Perfloger.ab [Ikarus] | 268 |
| Trojan-PWS.Win32.QQPass [Ikarus] | 267 |
| Trojan-Spy.Banker [Ikarus] | 246 |
| Generic.dx [McAfee] | 235 |
| Win-Trojan/Hupigon.Gen [AhnLab] | 208 |
| Mal/Packer, Mal/Behav-024, Mal/Behav-204, Mal/Behav-009 [Sophos] | 196 |
| Win32.SuspectCrc [Ikarus] | 181 |
| Mal/Banker-E [Sophos] | 151 |
| New Malware.n [McAfee] | 144 |
| Win-Trojan/Xema.variant [AhnLab] | 143 |
| Trojan-Downloader.Win32.Banload [Ikarus] | 133 |
| Mal/Packer, Mal/EncPk-BW [Sophos] | 119 |
| Trojan-Dropper.Agent [Ikarus] | 119 |
| Virus.Win32.OnLineGames.AHK [Ikarus] | 115 |
| Mal/HckPk-A [Sophos] | 105 |
| Trojan.Crypt [Ikarus] | 105 |
| not-a-virus:Monitor.Win32.Perflogger [Ikarus] | 104 |
| Mal/TibsPk-A [Sophos] | 100 |
| Win-Trojan/OnlineGameHack.B [AhnLab] | 99 |
| Trojan-Spy.Win32.Banker.anv [Ikarus] | 89 |
| Trojan Horse [Symantec] | 88 |
| Mal/Behav-204 [Sophos] | 87 |
| Trojan.Win32.Agent [Ikarus] | 85 |
| Trojan-Dropper.Win32.Malf [Ikarus] | 83 |
| Spy-Agent.cv [McAfee] | 80 |
| Trojan-Spy.Win32.Perfloger.ab [Kaspersky Lab] | 70 |
| Trojan-Spy.Win32.Ardamax [Ikarus] | 66 |
| VirTool.Win32.DelfInject [Ikarus] | 64 |
| Mal/Zlob-AG [Sophos] | 62 |
| PWS:Win32/Stealer.M [Microsoft] | 61 |
| Trojan.Generic [Ikarus] | 61 |
| Backdoor.Win32.Hupigon [Ikarus] | 60 |
| TROJ_ZLOB.AKT [Trend Micro] | 56 |
| Mal/Behav-328, Mal/Emogen-I, Mal/Behav-009 [Sophos] | 54 |
| Mal_Banker [Trend Micro] | 53 |
| Win32/MalPackedB.suspicious [AhnLab] | 52 |
| Trojan-Dropper.Win32.Agent.anpx [Kaspersky Lab] | 50 |
| Trojan-PWS.OnlineGames.ADRD [PC Tools] | 50 |
| W32/Spybot.worm!a [McAfee] | 50 |
| New Malware.u [McAfee] | 49 |
| Trojan-Banker.Win32.Banbra.rcp [Kaspersky Lab] | 49 |
| Trojan-Downloader.Win32.VB.lih [Kaspersky Lab] | 49 |
| Backdoor.Win32.IRCBot [Ikarus] | 48 |
| Trojan-Downloader.VB!sd6 [PC Tools] | 48 |
| PWS-Banker.gen.dh.dldr [McAfee] | 47 |
| Trojan:Win32/Glox.gen!damaged [Microsoft] | 47 |
| VirTool:Win32/DelfInject.gen!AQ [Microsoft] | 47 |
| Trojan.Generic [PC Tools] | 46 |
| Trojan-Dropper.Win32.Agent.amle [Kaspersky Lab] | 46 |
| Virus.Win32.Crypt.CIK [Ikarus] | 46 |
| Infostealer.Gampass [Symantec] | 45 |
| Trojan:Win32/Meredrop [Microsoft] | 45 |
| Trojan:Win32/Tibs.IT [Microsoft] | 45 |
| Mal/EncPk-BU, Mal/Packer, Mal/EncPk-BA [Sophos] | 44 |
| Mal/EncPk-FO [Sophos] | 44 |
| VirTool:Win32/Injector.gen!AD [Microsoft] | 44 |
| Win-Trojan/Buzus.229864 [AhnLab] | 44 |
| New Malware.bl [McAfee] | 43 |
| TROJ_FAKEAV.AC [Trend Micro] | 43 |
| Trojan-Banker.Win32.Banker [Ikarus] | 43 |
| TSPY_ARDAMAX.HR [Trend Micro] | 43 |
| New Win32 [McAfee] | 42 |
| Downloader [Symantec] | 41 |
| Mal/Behav-328, Mal/Behav-103, Mal/Behav-043 [Sophos] | 41 |
| Mal/Behav-103, Mal/Behav-043 [Sophos] | 40 |
| TrojanDownloader:Win32/Renos.JH [Microsoft] | 40 |
| Trojan-GameThief.Win32.OnLineGames [Ikarus] | 40 |
| Trojan-Spy.Win32.Ardamax.t [Kaspersky Lab] | 40 |
| Virus.Win32.Trojan [Ikarus] | 40 |
| Cryp_PESpin [Trend Micro] | 38 |
| Trojan-Spy.Win32.Pophot [Ikarus] | 38 |
| VirTool:Win32/DelfInject.gen!AC [Microsoft] | 38 |
| Gen.Trojan [Ikarus] | 37 |
| Generic.PWS.Games [Ikarus] | 37 |
| Infostealer [Symantec] | 37 |
| Trojan.Win32.Midgare.mqa [Kaspersky Lab] | 37 |
| Trojan.Win32.Bohmini.A [Ikarus] | 36 |
| Win-Trojan/Midgare.34685 [AhnLab] | 36 |
| PWS-Mmorpg.gen [McAfee] | 35 |
| Trojan-Spy.Win32.Ardamax.n [Kaspersky Lab] | 35 |
| TSPY_ARDAMAX.GA [Trend Micro] | 35 |
| VirTool.Win32.Injector [Ikarus] | 35 |
| Mal/Basine-C [Sophos] | 34 |
| Packed.Win32.Klone [Ikarus] | 34 |
| Trojan-Dropper.Win32.Comotor [Ikarus] | 34 |
| AdWare.Win32.BHO [Ikarus] | 33 |
| Trojan.Win32.Buzus.bzes [Kaspersky Lab] | 33 |
| Mal/Behav-130 [Sophos] | 32 |
| Mal/Dropper-T [Sophos] | 32 |
| Packer.PESpin [Ikarus] | 32 |
| W32/Koobfa-Gen [Sophos] | 32 |