| Threat Alias | Number of Incidents |
| Email-Worm.Win32.Agent.bx [Kaspersky Lab] | 662 |
| Mal/Basine-C [Sophos] | 662 |
| Trojan.Pandex [Symantec] | 662 |
| Win32/Agent.worm.62464 [AhnLab] | 570 |
| I-Worm.Wigon.Gen [PC Tools] | 438 |
| Email-Worm.Win32.Agent.bx [Ikarus] | 419 |
| Spammer:Win32/Talwadig.A [Microsoft] | 292 |
| Spammer:Win32/Cutwail.gen!B [Microsoft] | 233 |
| Downloader [Symantec] | 51 |
| Trojan-Downloader.Win32.Agent.bnm [Kaspersky Lab] | 40 |
| Troj/Pushu-Gen [Sophos] | 38 |
| Trojan.DL.Wigon.Gen.6 [PC Tools] | 38 |
| Trojan-Downloader.Win32.Mutant.aim [Kaspersky Lab] | 38 |
| VirTool:WinNT/Cutwail.F [Microsoft] | 37 |
| TROJ_DLOADER.BXM [Trend Micro] | 34 |
| Trojan.Wigon.Gen.2 [PC Tools] | 18 |
| TROJ_AGENT.ADPQ [Trend Micro] | 16 |
| Trojan-Downloader.Agent!sd5 [PC Tools] | 14 |
| Rootkit.Win32.Agent.ey [Kaspersky Lab] | 12 |
| Rootkit.Posh.A [PC Tools] | 11 |
| TROJ_AGENT.BJN [Trend Micro] | 9 |
| Mal/Emogen-Y, Mal/Basine-C, Mal/Behav-010 [Sophos] | 5 |
| Trojan-Dropper.Cutwail [Ikarus] | 4 |
| Win-Trojan/Agent.25472 [AhnLab] | 4 |
| Mal/Generic-A [Sophos] | 3 |
| Trojan.DL.Agent.KNF [PC Tools] | 3 |
| Trojan.DL.Agent.MLD [PC Tools] | 3 |
| Trojan:Win32/Dahrwam.A [Microsoft] | 3 |
| Trojan-Downloader.Win32.Agent.ici [Kaspersky Lab] | 3 |
| Trojan-Dropper.Agent [Ikarus] | 3 |
| Win-Trojan/Agent.53248.DA [AhnLab] | 3 |
| Mal/Behav-010, Mal/Emogen-Y, Mal/Basine-C [Sophos] | 2 |
| Trojan.DR.Pandex.T [PC Tools] | 2 |
| Trojan.Wigon.C [PC Tools] | 2 |
| Trojan.Win32.Agent.jyq [Kaspersky Lab] | 2 |
| Email-Worm.Win32.Agent.geu [Kaspersky Lab] | 1 |
| Rootkit.Agent.EY [PC Tools] | 1 |
| Troj/DropRk-A [Sophos] | 1 |
| TROJ_AGENT.ABTV [Trend Micro] | 1 |
| TROJ_PANDEX.CH [Trend Micro] | 1 |
| TROJ_PANDEX.EW [Trend Micro] | 1 |
| TROJ_PUSHDO.A [Trend Micro] | 1 |
| Trojan-Downloader.Diehard [PC Tools] | 1 |
| TrojanDropper:Win32/Cutwail.AA [Microsoft] | 1 |
| TrojanDropper:Win32/Cutwail.K [Microsoft] | 1 |
| Virus.Win32.Agent.NGJ [Ikarus] | 1 |
| Win32/Agent.worm.64512.F [AhnLab] | 1 |
| Win-Trojan/Agent.21632.B [AhnLab] | 1 |