| Threat Alias | Number of Incidents |
| Packed.Generic.233 [Symantec] | 645 |
| Trojan-Downloader.Win32.FakeRean [Ikarus] | 175 |
| TrojanDownloader:Win32/FakeRean [Microsoft] | 174 |
| TROJ_FAKEALE.SMB [Trend Micro] | 144 |
| Trojan-Downloader.Win32.FraudLoad [Ikarus] | 123 |
| Trojan:Win32/Alureon.BH [Microsoft] | 122 |
| Generic FakeAlert.d!gen [McAfee] | 120 |
| FakeAlert-XPSecCenter [McAfee] | 104 |
| Generic Downloader.x!bhm [McAfee] | 101 |
| Trojan-Downloader.Win32.FraudLoad.wsia [Kaspersky Lab] | 100 |
| Trojan-Downloader.Win32.Renos [Ikarus] | 91 |
| Trojan.Win32.Ertfor [Ikarus] | 88 |
| Trojan:Win32/Ertfor.B [Microsoft] | 69 |
| Trojan.Fakeavalert [Symantec] | 67 |
| Trojan-Downloader.Win32.FraudLoad.fkv [Kaspersky Lab] | 62 |
| Trojan.Win32.Alureon [Ikarus] | 56 |
| Generic Downloader.x!wj [McAfee] | 49 |
| Trojan-Downloader.Win32.Small.kdb [Kaspersky Lab] | 49 |
| Generic FakeAlert!bd [McAfee] | 45 |
| Trojan.Win32.FraudPack.rcj [Kaspersky Lab] | 45 |
| FakeAlert-DA [McAfee] | 34 |
| TrojanDownloader:Win32/Renos [Microsoft] | 27 |
| Trojan:Win32/Alureon.BK [Microsoft] | 24 |
| Trojan:Win32/FakeRean [Microsoft] | 24 |
| Win-Trojan/Xema.variant [AhnLab] | 20 |
| Trojan Horse [Symantec] | 19 |
| Trojan-Dropper [Ikarus] | 19 |
| Generic Dropper.ke [McAfee] | 18 |
| Trojan-Clicker.Win32.Vesloruki [Ikarus] | 18 |
| Win32/IRCBot.worm.variant [AhnLab] | 17 |
| Trojan-Downloader.Win32.FraudLoad.fft [Kaspersky Lab] | 16 |
| Trojan-Dropper.Agent [Ikarus] | 16 |
| Win-Trojan/Ertfor.15000.H [AhnLab] | 16 |
| Win-Trojan/Spambot.11264 [AhnLab] | 16 |
| Packed.Generic.218 [Symantec] | 15 |
| Trojan-Clicker.Win32.Klik [Ikarus] | 15 |
| Trojan-Downloader.Win32.FraudLoad.eyw [Kaspersky Lab] | 15 |
| TrojanDownloader:Win32/FakeRean.gen!C [Microsoft] | 15 |
| Downloader.MisleadApp [Symantec] | 14 |
| FakeAlert-CM [McAfee] | 14 |
| Downloader [Symantec] | 13 |
| Packed.Win32.Tdss.x [Kaspersky Lab] | 13 |
| Trojan.Win32.Winwebsec [Ikarus] | 13 |
| Trojan:Win32/Ertfor.A [Microsoft] | 13 |
| PWS:Win32/Zbot.gen!R [Microsoft] | 12 |
| Infostealer.Banker.C [Symantec] | 11 |
| W32/Ertfor.gen [McAfee] | 11 |
| Win-Trojan/Fakealert.238642 [AhnLab] | 11 |
| Generic.dx!cju [McAfee] | 10 |
| HeurEngine.MaliciousPacker [PC Tools] | 10 |
| Trojan.Win32.Wantvi [Ikarus] | 10 |
| Trojan-Downloader.Win32.Agent.clni [Kaspersky Lab] | 10 |
| Win-Trojan/Ertfor.15000.I [AhnLab] | 10 |
| Mal/Generic-A [Sophos] | 9 |
| not-a-virus:FraudTool.Win32.WinPCDefender.bm [Kaspersky Lab] | 9 |
| Packed.Win32.Krap.t [Kaspersky Lab] | 9 |
| Trojan.Win32.FakeRean [Ikarus] | 9 |
| Trojan-Downloader.Win32.Wzhyk.ah [Kaspersky Lab] | 9 |
| Adclicker-HB [McAfee] | 8 |
| Trojan-Clicker.Win32.Hatigh [Ikarus] | 8 |
| TrojanClicker:Win32/Hatigh.C [Microsoft] | 8 |
| Trojan-Downloader.Win32.Agent.cqfg [Kaspersky Lab] | 8 |
| Win-Trojan/Agent.15000.BF [AhnLab] | 8 |
| Downloader-BOI [McAfee] | 7 |
| Trojan:Win32/Alureon.gen!J [Microsoft] | 7 |
| Backdoor.Tidserv [Symantec] | 6 |
| Generic.dx!ezc [McAfee] | 6 |
| not-a-virus:FraudTool.Win32.WinPCDefender [Ikarus] | 6 |
| PWS.Win32 [Ikarus] | 6 |
| PWS:Win32/Zbot.PG [Microsoft] | 6 |
| RogueAntiSpyware.XPAntispyware [PC Tools] | 6 |
| Trojan.Win32.FakeAV [Ikarus] | 6 |
| Trojan.Win32.FraudPack [Ikarus] | 6 |
| TrojanClicker:Win32/Klik [Microsoft] | 6 |
| Trojan-Downloader.Win32.FraudLoad.ehp [Kaspersky Lab] | 6 |
| Trojan-Downloader.Win32.FraudLoad.fdo [Kaspersky Lab] | 6 |
| Trojan-PSW.Banker [PC Tools] | 6 |
| Win-Trojan/Downloader.106499 [AhnLab] | 6 |
| Win-Trojan/FakeAv.189325 [AhnLab] | 6 |
| Win-Trojan/Fakeav.Gen [AhnLab] | 6 |
| Win-Trojan/Fraudload.184393 [AhnLab] | 6 |
| Worm:Win32/Mariofev.A [Microsoft] | 6 |
| Generic Dropper.nu [McAfee] | 5 |
| not-a-virus:FraudTool.Win32.SystemSecurity.ic [Kaspersky Lab] | 5 |
| Trojan.Dropper [Symantec] | 5 |
| Trojan.Win32.FraudPack.udx [Kaspersky Lab] | 5 |
| Virus.Packed.Win32.Tdss [Ikarus] | 5 |
| Win-Trojan/Fakeav.190993.B [AhnLab] | 5 |
| Worm.Win32.Mariofev [Ikarus] | 5 |
| FakeAlert-FH [McAfee] | 4 |
| Gen.Trojan [Ikarus] | 4 |
| Generic Downloader.x!bff [McAfee] | 4 |
| PWS:Win32/Zbot.G [Microsoft] | 4 |
| PWS:Win32/Zbot.gen!B [Microsoft] | 4 |
| Suspicious.Lop [Symantec] | 4 |
| Tool:Win32/Dnschanger.K [Microsoft] | 4 |
| Trojan.Crypt [Ikarus] | 4 |
| Trojan.Win32.Agent.cwri [Kaspersky Lab] | 4 |
| Trojan:Win32/Winwebsec [Microsoft] | 4 |
| Trojan-Clicker.Win32.Vesloruki.cgp [Kaspersky Lab] | 4 |