| Threat Alias | Number of Incidents |
| W32.Fontra [Symantec] | 8,210 |
| Worm.Fontra.F [PC Tools] | 8,210 |
| Virus.Win32.Fontra.c [Kaspersky Lab] | 7,895 |
| Trojan:Win32/VB.ZC [Microsoft] | 210 |
| W32/Fontra-F [Sophos] | 210 |
| WORM_VB.GZP [Trend Micro] | 210 |
| Virus.Win32.Fontra.c [Ikarus] | 105 |
| Win32/Fontra.worm.417792 [AhnLab] | 105 |
| Mal/Generic-A [Sophos] | 41 |
| Packed.Generic.237 [Symantec] | 37 |
| Trojan.Crypt [Ikarus] | 35 |
| Trojan Horse [Symantec] | 12 |
| Mal/VBDldr-Gen [Sophos] | 11 |
| Generic.dx!bew [McAfee] | 10 |
| Trojan.Win32.Agent2.kyn [Kaspersky Lab] | 10 |
| Win-Trojan/Agent2.11264.Y [AhnLab] | 10 |
| Generic Downloader.x [McAfee] | 7 |
| BehavesLike.Win32.Malware [Ikarus] | 5 |
| Downloader [Symantec] | 5 |
| FakeAlert-ES [McAfee] | 4 |
| Trojan.Win32.FraudPack.pjs [Kaspersky Lab] | 4 |
| Trojan-Downloader.Win32.Dontovo [Ikarus] | 4 |
| Trojan-Downloader.Win32.VB.izu [Kaspersky Lab] | 4 |
| Win-Trojan/Downloader.27648.IF [AhnLab] | 4 |
| Trojan.Generic [PC Tools] | 3 |
| Trojan-Downloader.Win32.VB [Ikarus] | 3 |
| Backdoor.Win32.Bifrose [Ikarus] | 2 |
| Mal/FakeAV-WEB [Sophos] | 2 |
| Troj/Agent-ICO [Sophos] | 2 |
| Trojan-Downloader.Win32.VB.iqj [Kaspersky Lab] | 2 |
| Trojan-Downloader.Win32.VB.irq [Kaspersky Lab] | 2 |
| Trojan-Downloader.Win32.VB.jbe [Kaspersky Lab] | 2 |
| Trojan-Dropper.Win32.WinAD.h [Kaspersky Lab] | 2 |
| VirTool:Win32/VBInject.gen!CG [Microsoft] | 2 |
| W32.Alcra.D [Symantec] | 2 |
| W32/Sdbot.dr.gen [McAfee] | 2 |
| Worm.Spybot [PC Tools] | 2 |
| Backdoor.Bifrose [Ikarus] | 1 |
| Backdoor.IRC.Bot [Symantec] | 1 |
| Backdoor.IrcContact [Symantec] | 1 |
| Backdoor.IrcContact.B [PC Tools] | 1 |
| Backdoor.Trojan [Symantec] | 1 |
| Backdoor.Win32.Clar.d [Kaspersky Lab] | 1 |
| Backdoor.Win32.IrcContact.30 [Kaspersky Lab] | 1 |
| Backdoor.Win32.SdBot [Ikarus] | 1 |
| Backdoor.Win32.SdBot.klm [Kaspersky Lab] | 1 |
| Backdoor:Win32/Bifrose.ACI [Microsoft] | 1 |
| Backdoor:Win32/Bifrose.FO [Microsoft] | 1 |
| BackDoor-CEP.svr [McAfee] | 1 |
| BackDoor-DWZ [McAfee] | 1 |
| Backdoor-DZP [McAfee] | 1 |
| BKDR_BIFROSE.MIC [Trend Micro] | 1 |
| BKDR_IRCCONTAC.C [Trend Micro] | 1 |
| Infostealer.Bancos.AA [Symantec] | 1 |
| IRC-Contact [McAfee] | 1 |
| Mal/Behav-285 [Sophos] | 1 |
| Mal/Bifrose-R, Mal/Bifrose-S [Sophos] | 1 |
| Mal/Generic-A, Mal/EncPk-LV [Sophos] | 1 |
| Mal/Generic-E, Mal/Bifrose-R, Mal/Bifrose-E, Mal/Bifrose-G, Mal/Bifrose-D, Mal/Bifrose-A [Sophos] | 1 |
| MemScanBackdoor.Bifrose.NQ [Ikarus] | 1 |
| New Malware.jn [McAfee] | 1 |
| not-a-virus:AdWare.Win32.Zhongsou.bb [Kaspersky Lab] | 1 |
| not-a-virus:Monitor.Win32.Keylogger.af [Ikarus] | 1 |
| not-a-virus:Monitor.Win32.KeyLogger.af [Kaspersky Lab] | 1 |
| Packed.Win32.Black.a [Kaspersky Lab] | 1 |
| Packer.RLPack [Ikarus] | 1 |
| PE_PARITE.A [Trend Micro] | 1 |
| PE_SALITY.AL [Trend Micro] | 1 |
| Troj/Spy-AO [Sophos] | 1 |
| TROJ_DROPPER.OX [Trend Micro] | 1 |
| Trojan.Agent.CZZK [PC Tools] | 1 |
| Trojan.Buzus.acfn [PC Tools] | 1 |
| Trojan.Win32.Agent.bcn [Kaspersky Lab] | 1 |
| Trojan.Win32.Agent.vpq [Kaspersky Lab] | 1 |
| Trojan.Win32.Vilsel [Ikarus] | 1 |
| Trojan.Win32.Vilsel.mtf [Kaspersky Lab] | 1 |
| Trojan:Win32/Bumat!rts [Microsoft] | 1 |
| Trojan-DDoS.Win32.Resod [Ikarus] | 1 |
| Trojan-Downloader.FraudLoad [PC Tools] | 1 |
| Trojan-Downloader.VB!sd6 [PC Tools] | 1 |
| Trojan-Downloader.Win32.Agent.clib [Kaspersky Lab] | 1 |
| Trojan-Downloader.Win32.VB.iws [Kaspersky Lab] | 1 |
| Trojan-Downloader.Win32.VB.iyg [Kaspersky Lab] | 1 |
| TrojanDownloader:Win32/Matcash.O [Microsoft] | 1 |
| Trojan-Dropper.Win32.VB.aatz [Kaspersky Lab] | 1 |
| Trojan-PWS.Win32.LdPinch [Ikarus] | 1 |
| VirTool:Win32/Vbinder.gen!G [Microsoft] | 1 |
| VirTool:Win32/VBInject.gen!CI [Microsoft] | 1 |
| Virus.Trojan.Win32.Agent.abpb [Ikarus] | 1 |
| Virus.Win32.Bifrose [Ikarus] | 1 |
| Virus.Win32.Parite.b [Kaspersky Lab] | 1 |
| Virus.Win32.Sality.s [Kaspersky Lab] | 1 |
| Virus:Win32/Parite.B [Microsoft] | 1 |
| W32.IRCBot [Symantec] | 1 |
| W32.Pinfi [Symantec] | 1 |
| W32.Sality.X [Symantec] | 1 |
| W32/Parite-B [Sophos] | 1 |
| W32/Pate.b [McAfee] | 1 |
| W32/Sality.ac [McAfee] | 1 |
| W32/Sdbot.worm [McAfee] | 1 |