| Threat Alias | Number of Incidents |
| Backdoor.Trojan [Symantec] | 322 |
| Generic BackDoor [McAfee] | 270 |
| Mal/Generic-A [Sophos] | 193 |
| Trojan Horse [Symantec] | 128 |
| Backdoor.VB!sd6 [PC Tools] | 120 |
| Backdoor.VB.GEN [PC Tools] | 107 |
| Backdoor.Win32.Shark.dxa [Kaspersky Lab] | 99 |
| Backdoor.Win32.VB.fdi [Kaspersky Lab] | 72 |
| Win-Trojan/Xema.variant [AhnLab] | 66 |
| Trojan.Dropper [Symantec] | 54 |
| W32/AutoRun-XU [Sophos] | 48 |
| Troj/Prorat-19 [Sophos] | 44 |
| BackDoor-AVW [McAfee] | 43 |
| Trojan-Downloader.MisleadApp!sd6 [PC Tools] | 43 |
| Backdoor.Prorat.AR1 [PC Tools] | 40 |
| Backdoor.Win32.Prorat.19.i [Kaspersky Lab] | 40 |
| Backdoor:Win32/Prorat.L [Microsoft] | 40 |
| not-a-virus:AdWare.Win32.BHO.ejh [Kaspersky Lab] | 40 |
| Trojan.Fakeavalert [Symantec] | 40 |
| Generic Downloader.x [McAfee] | 38 |
| Backdoor.Win32.VB.frn [Kaspersky Lab] | 36 |
| Backdoor.Win32.VB.gsx [Kaspersky Lab] | 36 |
| FakeAlert-AB [McAfee] | 35 |
| Downloader.MisleadApp [Symantec] | 28 |
| not-a-virus:AdWare.Win32.BHO.eag [Kaspersky Lab] | 28 |
| BKDR_PRORAT.F [Trend Micro] | 27 |
| Downloader [Symantec] | 24 |
| Infostealer [Symantec] | 23 |
| Mal/EncPk-C [Sophos] | 23 |
| Generic.dx [McAfee] | 21 |
| Mal/Behav-216, Mal/Emogen-F [Sophos] | 20 |
| StartPage-KN [McAfee] | 20 |
| TrojanDropper:Win32/Startpage.DE [Microsoft] | 20 |
| BKDR_AVW.A [Trend Micro] | 18 |
| Win-Trojan/Shark.28160 [AhnLab] | 18 |
| PWS-LegMir [McAfee] | 16 |
| Troj/FakeAle-KF [Sophos] | 16 |
| Backdoor:Win32/VB.ANS [Microsoft] | 15 |
| Trojan.Fakeavalert!sd6 [PC Tools] | 15 |
| Backdoor.Win32.VB.brg [Kaspersky Lab] | 14 |
| Trojan:Win32/Malagent [Microsoft] | 14 |
| Backdoor.VB!sd5 [PC Tools] | 13 |
| Backdoor.Win32.VB.hkf [Kaspersky Lab] | 12 |
| Backdoor.Win32.VB.hxa [Kaspersky Lab] | 12 |
| Win-Trojan/Agent.47717.B [AhnLab] | 12 |
| Backdoor:Win32/VB.AT [Microsoft] | 11 |
| Generic Downloader.s [McAfee] | 11 |
| Troj/Bckdr-QPB [Sophos] | 11 |
| Generic PUP.x [McAfee] | 10 |
| Trojan.Win32.VB.hvz [Kaspersky Lab] | 10 |
| Win-Trojan/Agent.65536.ML [AhnLab] | 10 |
| Backdoor.Win32.Shark [Ikarus] | 9 |
| Mal/Delf-Y [Sophos] | 9 |
| Mal/VB-AD [Sophos] | 9 |
| Trojan:Win32/Bumat!rts [Microsoft] | 9 |
| TrojanDropper:Win32/VB.AF [Microsoft] | 9 |
| W32.SillyFDC [Symantec] | 9 |
| Generic BackDoor.k [McAfee] | 8 |
| TrojanSpy:Win32/Bancos.OO [Microsoft] | 8 |
| W32/Autorun.worm.h [McAfee] | 8 |
| Win32.SuspectCrc [Ikarus] | 8 |
| Win-Trojan/Agent.182272.U [AhnLab] | 8 |
| Mal/Behav-109 [Sophos] | 7 |
| VirTool:Win32/VBInject.gen!AV [Microsoft] | 7 |
| Backdoor:Win32/VB [Microsoft] | 6 |
| Mal/VB-F [Sophos] | 6 |
| Trojan-PWS.OnlineGames.SYHE [PC Tools] | 6 |
| VB-BackDoor.a.gen [McAfee] | 6 |
| W32.IRCBot [Symantec] | 6 |
| W32.Spybot.Worm [Symantec] | 6 |
| Adware.BHO.DIN [PC Tools] | 5 |
| Adware.VB.GKZ [PC Tools] | 5 |
| Backdoor.Win32.VB.grp [Kaspersky Lab] | 5 |
| Backdoor.Win32.VB.gw [Kaspersky Lab] | 5 |
| Backdoor.Win32.VB.hku [Kaspersky Lab] | 5 |
| Backdoor.Win32.VB.hmj [Kaspersky Lab] | 5 |
| Backdoor.Win32.VB.lea [Kaspersky Lab] | 5 |
| Generic BackDoor.b [McAfee] | 5 |
| Mal/VB-F, Mal/Behav-232 [Sophos] | 5 |
| Troj/VB-GW [Sophos] | 5 |
| Trojan:Win32/Meredrop [Microsoft] | 5 |
| Trojan-Dropper.Agent [PC Tools] | 5 |
| TrojanDropper:Win32/Delfdru.A [Microsoft] | 5 |
| Worm:Win32/VB.AM [Microsoft] | 5 |
| Backdoor.Prorat [Symantec] | 4 |
| Backdoor.Trojan.Client [Symantec] | 4 |
| Backdoor.Win32.Inject.aav [Kaspersky Lab] | 4 |
| Backdoor.Win32.VB.aoi [Kaspersky Lab] | 4 |
| Backdoor.Win32.VB.ggs [Kaspersky Lab] | 4 |
| Backdoor.Win32.VB.ghl [Kaspersky Lab] | 4 |
| Backdoor.Win32.VB.gom [Kaspersky Lab] | 4 |
| Backdoor.Win32.VB.gqz [Kaspersky Lab] | 4 |
| Backdoor:Win32/VB.GE [Microsoft] | 4 |
| Generic Dropper [McAfee] | 4 |
| Hacktool [Symantec] | 4 |
| Mal/Behav-221 [Sophos] | 4 |
| Mal/Emogen-F [Sophos] | 4 |
| Mal/EncPk-GT, Mal/HckPk-A [Sophos] | 4 |
| Mal/VBDrop-B [Sophos] | 4 |
| not-a-virus:AdWare.Win32.BHO.div [Kaspersky Lab] | 4 |