| Threat Alias | Number of Incidents |
| Trojan:Win32/Tibs.IU [Microsoft] | 187 |
| FakeAlert-XPPoliceAnti [McAfee] | 116 |
| Trojan-Downloader.Win32.FraudLoad [Ikarus] | 76 |
| FakeAlert-CC [McAfee] | 65 |
| Trojan Horse [Symantec] | 64 |
| Trojan-Downloader.Win32.FraudLoad.vpdm [Kaspersky Lab] | 64 |
| Trojan.Adclicker [Symantec] | 57 |
| Backdoor.Win32.Agent.adqt [Kaspersky Lab] | 56 |
| Generic Dropper.dn [McAfee] | 50 |
| Generic.dx [McAfee] | 47 |
| Gen.Trojan [Ikarus] | 42 |
| Packed.Generic.200 [Symantec] | 40 |
| Rootkit.Win32.TDSS [Ikarus] | 40 |
| Trojan:Win32/Insebro.C [Microsoft] | 35 |
| Virus.Win32.VunDrop [Ikarus] | 33 |
| Downloader.MisleadApp [Symantec] | 29 |
| TrojanClicker:Win32/Klik [Microsoft] | 28 |
| not-a-virus:FraudTool.Win32.Agent.ju [Kaspersky Lab] | 27 |
| Downloader-BWS [McAfee] | 25 |
| Trojan.Fakeavalert [Symantec] | 25 |
| DNSChanger.f.gen.a [McAfee] | 24 |
| Suspicious.MH690 [Symantec] | 24 |
| Generic Downloader.x [McAfee] | 22 |
| Trojan.FakeAV!gen [Symantec] | 22 |
| Mal/Generic-A [Sophos] | 19 |
| Backdoor.Agent!sd6 [PC Tools] | 18 |
| Trojan.FakeAV [PC Tools] | 18 |
| Downloader [Symantec] | 17 |
| RogueAntiSpyware.Generic [PC Tools] | 17 |
| Win-Trojan/Xema.variant [AhnLab] | 17 |
| SpywareGuard2008 [Symantec] | 16 |
| Trojan.Initbar [Symantec] | 16 |
| Win-Trojan/Fraudload.27648.C [AhnLab] | 16 |
| not-a-virus:FraudTool.Win32.Agent.kg [Kaspersky Lab] | 15 |
| TrojanDownloader:Win32/Renos.GZ [Microsoft] | 15 |
| Spyware-Ssppyy [McAfee] | 14 |
| Trojan.Win32.Tibs [Ikarus] | 14 |
| VirTool:Win32/DelfInject.gen!X [Microsoft] | 14 |
| Virus.Win32.Trojan [Ikarus] | 13 |
| Backdoor.Trojan [Symantec] | 12 |
| Exploit.Win32.IMG-WMF.oy [Kaspersky Lab] | 12 |
| PWS:Win32/Zbot.gen!R [Microsoft] | 12 |
| Trojan:Win32/Alureon.gen!J [Microsoft] | 12 |
| Trojan:Win32/FakeSpyguard [Microsoft] | 12 |
| Trojan-Downloader.Win32.Agent.bdvd [Kaspersky Lab] | 12 |
| Trojan-Downloader.Win32.Agent.bifo [Kaspersky Lab] | 12 |
| WiniGuard [Symantec] | 12 |
| Trojan.Vundo.B [Symantec] | 11 |
| TrojanDownloader:Win32/Renos.FJ [Microsoft] | 11 |
| FakeAlert-SpywareGuard [McAfee] | 10 |
| Generic Dropper.bw [McAfee] | 10 |
| Trojan.Win32.FraudPack.kfe [Kaspersky Lab] | 10 |
| Trojan-Spy.Win32.Zbot.njy [Kaspersky Lab] | 10 |
| Backdoor.Win32.Agent.wci [Kaspersky Lab] | 9 |
| FakeAlert-AB [McAfee] | 9 |
| Trojan.FakeAV!gen13 [Symantec] | 9 |
| Trojan.Win32.BHO.mme [Kaspersky Lab] | 9 |
| Trojan-Downloader.Win32.FraudLoad.vjna [Kaspersky Lab] | 9 |
| VirTool.Win32.DelfInject [Ikarus] | 9 |
| Win32/IRCBot.worm.variant [AhnLab] | 9 |
| Packed.Generic.187 [Symantec] | 8 |
| Rootkit.Win32.TDSS.eyj [Kaspersky Lab] | 8 |
| Trojan.Adclicker!sd6 [PC Tools] | 8 |
| Trojan.Win32.FraudPack [Ikarus] | 8 |
| Trojan:Win32/Iceroe.gen!A [Microsoft] | 8 |
| TrojanDownloader:Win32/Renos.GN [Microsoft] | 8 |
| Packed.Win32.Krap.ai [Kaspersky Lab] | 7 |
| Packed.Win32.Tdss.c [Kaspersky Lab] | 7 |
| RealAV [Symantec] | 7 |
| Trojan.Peed [Ikarus] | 7 |
| Trojan-Downloader.Win32.FraudLoad.vozi [Kaspersky Lab] | 7 |
| Virus.Win32.Fasec [Ikarus] | 7 |
| AntiVirus2009 [Symantec] | 6 |
| Backdoor.Win32.Agent.admr [Kaspersky Lab] | 6 |
| Downloader-BON [McAfee] | 6 |
| not-a-virus:FraudTool.Win32.Agent.kc [Kaspersky Lab] | 6 |
| not-a-virus:FraudTool.Win32.Agent.kd [Kaspersky Lab] | 6 |
| Trojan.BHO!sd6 [PC Tools] | 6 |
| Trojan.Win32.Agent [Ikarus] | 6 |
| Trojan.Win32.Iceroe [Ikarus] | 6 |
| Trojan:Win32/Winwebsec [Microsoft] | 6 |
| Trojan-Dropper.Agent [Ikarus] | 6 |
| Win-Trojan/Katusha.192512.D [AhnLab] | 6 |
| Win-Trojan/Katusha.212992.E [AhnLab] | 6 |
| Downloader-BPX [McAfee] | 5 |
| Generic PWS.y [McAfee] | 5 |
| not-a-virus:FraudTool.Win32.Agent.kj [Kaspersky Lab] | 5 |
| PWS:Win32/Zbot.G [Microsoft] | 5 |
| Trojan.TDss [Ikarus] | 5 |
| Trojan.Win32.Pakes.mmh [Kaspersky Lab] | 5 |
| Trojan.Win32.Pakes.mzt [Kaspersky Lab] | 5 |
| Trojan:Win32/Adept.B [Microsoft] | 5 |
| Trojan:Win32/Tibs.gen!lds [Microsoft] | 5 |
| TrojanClicker:Win32/Delf.P [Microsoft] | 5 |
| Trojan-Downloader.Agent!sd6 [PC Tools] | 5 |
| Trojan-Downloader.MisleadApp!sd6 [PC Tools] | 5 |
| Trojan-Downloader.Win32.FraudLoad.ddk [Kaspersky Lab] | 5 |
| TrojanDownloader:Win32/Fakeinit [Microsoft] | 5 |
| Virus.Win32.Delf.m [Ikarus] | 5 |
| Win-Trojan/Fraudpack.1190912 [AhnLab] | 5 |