| Threat Alias | Number of Incidents |
| Mal/Generic-A [Sophos] | 158 |
| Trojan Horse [Symantec] | 117 |
| Generic.PWS.Games [Ikarus] | 114 |
| Generic.dx [McAfee] | 112 |
| Infostealer.Gampass [Symantec] | 98 |
| Trojan-GameThief.Win32.OnLineGames [Ikarus] | 93 |
| PWS:Win32/Lolyda.AD [Microsoft] | 78 |
| Infostealer [Symantec] | 72 |
| Trojan:Win32/Perkesh.A [Microsoft] | 72 |
| Trojan.Win32.Hooker [Ikarus] | 68 |
| Trojan.Win32.Hooker.ae [Kaspersky Lab] | 68 |
| Trojan.Hooker!sd6 [PC Tools] | 64 |
| Backdoor.Bifrose [Symantec] | 63 |
| Trojan-GameThief.Win32.OnLineGames.uwtl [Kaspersky Lab] | 59 |
| Win-Trojan/OnlineGameHack.3584.J [AhnLab] | 52 |
| Constructor/Bifrose.1466368 [AhnLab] | 44 |
| Backdoor.Trojan [Symantec] | 43 |
| Constructor.Win32.Bifrose.j [Kaspersky Lab] | 43 |
| Backdoor.Win32.HacDef.h [Kaspersky Lab] | 42 |
| Constructor.Bifrose!sd6 [PC Tools] | 41 |
| Backdoor.HackDefender [Symantec] | 39 |
| HackerDefender [McAfee] | 39 |
| VirTool:WinNT/Hackdef.BJ [Microsoft] | 39 |
| W32.SillyFDC [Symantec] | 35 |
| Win-Trojan/Xema.variant [AhnLab] | 35 |
| Constructor:Win32/Bifrose.A [Microsoft] | 34 |
| Generic PWS.ak [McAfee] | 33 |
| Virus.Win32.Bifrose [Ikarus] | 31 |
| Backdoor.HacDef!sd6 [PC Tools] | 30 |
| Trojan.Packed.NsAnti [Symantec] | 29 |
| Trojan.Win32.Inhoo [Ikarus] | 29 |
| BackDoor-CEP.gen.au [McAfee] | 28 |
| TrojanDownloader:Win32/Frethog.C [Microsoft] | 28 |
| Win32/IRCBot.worm.variant [AhnLab] | 28 |
| Backdoor.Win32.HacDef [Ikarus] | 27 |
| PWS:Win32/Frethog.gen!B [Microsoft] | 25 |
| Backdoor.Win32.IRCBot [Ikarus] | 24 |
| BackDoor-DVR [McAfee] | 24 |
| Win-Trojan/HackDef.3156 [AhnLab] | 24 |
| Backdoor.Bifrose!sd6 [PC Tools] | 21 |
| PWS-Mmorpg!h [McAfee] | 20 |
| Email-Worm.Win32.Bagle.adk [Kaspersky Lab] | 19 |
| Worm.Win32.AutoRun [Ikarus] | 19 |
| Backdoor:Win32/Bifrose [Microsoft] | 18 |
| Email-Worm.Bagle!sd6 [PC Tools] | 18 |
| Worm.AutoRun!sd6 [PC Tools] | 18 |
| Email-Worm.Win32.Bagle [Ikarus] | 16 |
| Packed.Win32.Krap [Ikarus] | 16 |
| Trojan-Dropper.Agent [Ikarus] | 16 |
| Trojan-Dropper.Win32.Flystud [Ikarus] | 16 |
| W32.Gammima.AG [Symantec] | 16 |
| W32/Autorun.worm.gen [McAfee] | 16 |
| Backdoor.IRCBot!sd6 [PC Tools] | 15 |
| VirTool:Win32/CeeInject.gen!R [Microsoft] | 15 |
| PWS:Win32/Lolyda.AF [Microsoft] | 14 |
| PWS-Gamania.gen.c [McAfee] | 14 |
| W32/Autorun.worm.dp [McAfee] | 14 |
| Worm:Win32/Autorun.DM [Microsoft] | 14 |
| Generic Downloader.ab [McAfee] | 13 |
| PWS:Win32/OnLineGames.ABK [Microsoft] | 13 |
| Trojan.Win32.Agent2 [Ikarus] | 13 |
| Trojan.Win32.Agent2.fvv [Kaspersky Lab] | 13 |
| Trojan:Win32/Meredrop [Microsoft] | 13 |
| Trojan-Spy.Gampass!sd6 [PC Tools] | 13 |
| Backdoor.Win32.IRCBot.irl [Kaspersky Lab] | 12 |
| Backdoor.Win32.IRCBot.jvw [Kaspersky Lab] | 12 |
| BKDR_HACDEF.FZ [Trend Micro] | 12 |
| Gen.Trojan [Ikarus] | 12 |
| Generic Downloader.x [McAfee] | 12 |
| Mal/Bifrose-S [Sophos] | 12 |
| Mal/Bifrose-S, Mal/Bifrose-S [Sophos] | 12 |
| Packed.Win32.Krap.b [Kaspersky Lab] | 12 |
| Trojan-GameThief.Win32.OnLineGames.uyhx [Kaspersky Lab] | 12 |
| Win-Trojan/Agent.172032.DJ [AhnLab] | 12 |
| Worm.Win32.AutoRun.eae [Kaspersky Lab] | 12 |
| Mal/Inject-M [Sophos] | 11 |
| New Malware.ix [McAfee] | 11 |
| TROJ_AGENT.YOS [Trend Micro] | 11 |
| Trojan.Crypt [Ikarus] | 11 |
| TrojanDropper:Win32/Opachki.A [Microsoft] | 11 |
| VirTool:Win32/Vtub.WL [Microsoft] | 11 |
| Worm.Win32.Viking [Ikarus] | 11 |
| Backdoor.Win32.SdBot [Ikarus] | 10 |
| Mal/EncPk-IG [Sophos] | 10 |
| Trojan-Dropper.Delf [Ikarus] | 10 |
| Adware:Win32/IEHlpr [Microsoft] | 9 |
| Backdoor.Hacdef!ct [PC Tools] | 9 |
| Downloader [Symantec] | 9 |
| PWS-Banker.dll [McAfee] | 9 |
| PWS-Mmorpg!i [McAfee] | 9 |
| Trojan.Adclicker [Symantec] | 9 |
| Trojan.Agent2!sd6 [PC Tools] | 9 |
| Trojan-Downloader.Win32.Agent.bjnr [Kaspersky Lab] | 9 |
| Trojan-Dropper [Ikarus] | 9 |
| Trojan-GameThief.Win32.Magania.ajqe [Kaspersky Lab] | 9 |
| Trojan-GameThief.Win32.OnLineGames.blxt [Kaspersky Lab] | 9 |
| Trojan-GameThief.Win32.OnLineGames.uwuj [Kaspersky Lab] | 9 |
| Trojan-Spy.Win32.Agent [Ikarus] | 9 |
| Win-Trojan/Magania.86016.Q [AhnLab] | 9 |
| Backdoor.Win32.Bifrose.acci [Kaspersky Lab] | 8 |