| Threat Alias | Number of Incidents |
| Infostealer.Gampass [Symantec] | 9,038 |
| Generic.dx [McAfee] | 8,263 |
| Trojan Horse [Symantec] | 6,099 |
| Exploit.Win32.IMG-WMF.fk [Kaspersky Lab] | 5,798 |
| Trojan:Win32/Alureon.BB [Microsoft] | 5,382 |
| Generic Downloader.x [McAfee] | 5,238 |
| Trojan.Win32.Alureon [Ikarus] | 5,060 |
| Trojan-Spy.Gampass!sd6 [PC Tools] | 4,803 |
| Troj/PWS-AXY [Sophos] | 4,420 |
| Trojan-Downloader.Win32.Small [Ikarus] | 4,294 |
| Hacktool [Symantec] | 4,234 |
| Trojan-Downloader.Small!sd6 [PC Tools] | 4,029 |
| Generic.PWS.Games [Ikarus] | 4,016 |
| Exploit.Win32.IMG-WMF [Ikarus] | 3,874 |
| Trojan:Win32/Abndog.A [Microsoft] | 3,827 |
| Downloader-BJN.sys [McAfee] | 3,825 |
| Trojan-Downloader.Win32.Small.xxh [Kaspersky Lab] | 3,825 |
| Trojan.Drondog [Symantec] | 3,781 |
| Trojan-Downloader.Agent!sd6 [PC Tools] | 3,704 |
| Infostealer [Symantec] | 3,594 |
| Trojan-Downloader.Win32.Agent.agzq [Kaspersky Lab] | 3,480 |
| Exploit.IMG-WMF!sd6 [PC Tools] | 3,094 |
| Virus.Win32.Virut.br [Ikarus] | 2,958 |
| PWS-Mmorpg.gen [McAfee] | 2,831 |
| Downloader [Symantec] | 2,784 |
| Exploit.IMG-WMF [PC Tools] | 2,782 |
| Trojan.Zlob [Ikarus] | 2,460 |
| Packed.Generic.181 [Symantec] | 2,026 |
| Win-Trojan/ExploitTool.3740 [AhnLab] | 1,898 |
| Trojan-GameThief.Win32.MultiFirst [Ikarus] | 1,886 |
| Trojan-PWS.OnlineGames [PC Tools] | 1,597 |
| Generic PWS.y [McAfee] | 1,587 |
| Trojan-GameThief.Win32.Magania.axbn [Kaspersky Lab] | 1,368 |
| New Malware.aj [McAfee] | 1,295 |
| Trojan-GameThief.Win32.Magania.gen [Kaspersky Lab] | 1,269 |
| PWS:Win32/Lolyda.T [Microsoft] | 1,230 |
| Trojan-GameThief.Win32.Magania [Ikarus] | 1,181 |
| Trojan-GameThief.Win32.MultiFirst.ad [Kaspersky Lab] | 1,125 |
| Troj/Rootkit-EM [Sophos] | 1,122 |
| Trojan-Dropper.Agent [Ikarus] | 1,103 |
| Generic.Onlinegames [Ikarus] | 1,087 |
| Generic Dropper.eb [McAfee] | 1,066 |
| Trojan-GameThief.Win32.OnLineGames.trxn [Kaspersky Lab] | 841 |
| Generic BackDoor [McAfee] | 754 |
| Hacktool.Rootkit [Symantec] | 714 |
| Trojan.Popuper [PC Tools] | 686 |
| Trojan.Agent.lsass [Ikarus] | 680 |
| Worm.Win32.Downloader.yv [Kaspersky Lab] | 654 |
| Trojan.Zlob [Symantec] | 617 |
| Backdoor.Trojan [Symantec] | 605 |
| Trojan.Fakeavalert [Symantec] | 576 |
| Downloader.gen.a [McAfee] | 537 |
| Adware-Fastlook [McAfee] | 527 |
| Trojan-GameThief.Win32.MultiFirst.ah [Kaspersky Lab] | 510 |
| Infostealer.Onlinegame [Symantec] | 499 |
| Backdoor.Bifrose [Symantec] | 452 |
| Trojan-PWS.Win32.LdPinch [Ikarus] | 449 |
| Trojan-PSW.Win32.LdPinch.afea [Kaspersky Lab] | 440 |
| Trojan:Win32/Insebro.C [Microsoft] | 433 |
| Rootkit.Win32.Small [Ikarus] | 431 |
| TrojanDownloader:Win32/Perkesh.gen!A [Microsoft] | 411 |
| Generic Downloader.z [McAfee] | 398 |
| Trojan-GameThief.Win32.OnLineGames.uull [Kaspersky Lab] | 378 |
| PWS:Win32/Lolyda.M [Microsoft] | 375 |
| Generic Packed [McAfee] | 352 |
| Trojan:Win32/Tibs.gen!lds [Microsoft] | 341 |
| Trojan-GameThief.Win32.OnLineGames [Ikarus] | 336 |
| Win-Trojan/OnlineGameHack.32256.HH [AhnLab] | 336 |
| W32/Autorun.worm.gen [McAfee] | 335 |
| Trojan-PWS.Win32.Agent [Ikarus] | 331 |
| Hacktool.Rootkit!sd6 [PC Tools] | 327 |
| Adware.PigSearch [Symantec] | 323 |
| Trojan.Vundo [Symantec] | 319 |
| Trojan.Win32.Agent [Ikarus] | 311 |
| W32.SillyFDC [Symantec] | 307 |
| Trojan-PWS.Win32.OnLineGames [Ikarus] | 300 |
| Constructor.Win32.Bifrose.j [Kaspersky Lab] | 298 |
| BackDoor-CEP [McAfee] | 296 |
| Win-Trojan/Xema.variant [AhnLab] | 294 |
| PWS-OnlineGames.co [McAfee] | 293 |
| Worm.Win32.Downloader.zx [Kaspersky Lab] | 293 |
| Downloader.Timber [Ikarus] | 292 |
| Trojan-PSW.Win32.Agent.lsc [Kaspersky Lab] | 288 |
| Worm.Win32.AutoRun [Ikarus] | 286 |
| TSPY_ONLINEG.FSD [Trend Micro] | 281 |
| W32/AutoRun-ADF [Sophos] | 276 |
| Backdoor.Win32.Bifrose [Ikarus] | 273 |
| Trojan:Win32/Tibs.IG [Microsoft] | 273 |
| Win32.SuspectCrc [Ikarus] | 272 |
| Trojan.Fakeavalert!sd6 [PC Tools] | 263 |
| Generic Dropper [McAfee] | 257 |
| Trojan-PSW.Agent!sd6 [PC Tools] | 257 |
| Worm.AutoRun!sd6 [PC Tools] | 256 |
| Rootkit.Win32.Small.le [Kaspersky Lab] | 250 |
| Trojan-Downloader.Small [Ikarus] | 250 |
| Backdoor.Graybird [Symantec] | 246 |
| Puper [McAfee] | 245 |
| Generic Dropper.cb [McAfee] | 244 |
| TrojanSpy:Win32/Treemz.gen!A [Microsoft] | 244 |
| Adware.PigSearch!sd6 [PC Tools] | 238 |