| Threat Alias | Number of Incidents |
| Spy-Agent.bw [McAfee] | 10 |
| Win32/IRCBot.worm.variant [AhnLab] | 8 |
| Trojan.Wsnpoem [Symantec] | 6 |
| Troj/Agent-HFZ [Sophos] | 4 |
| Troj/Spy-AS [Sophos] | 4 |
| Trojan:Win32/Zbot.AR [Microsoft] | 4 |
| Trojan-Spy.Win32.Zbot.dip [Ikarus] | 4 |
| Trojan-Spy.Win32.Zbot.dip [Kaspersky Lab] | 4 |
| PWS:Win32/Zbot.gen!G [Microsoft] | 3 |
| Backdoor.Paproxy [Symantec] | 2 |
| Backdoor.Trojan [Symantec] | 2 |
| Infostealer.Banker.C [Symantec] | 2 |
| Mal/EncPk-CZ [Sophos] | 2 |
| NTRootKit-H [McAfee] | 2 |
| PWS:Win32/Zbot.LS [Microsoft] | 2 |
| Trojan.Agent [Ikarus] | 2 |
| Trojan:Win32/Zbot.AT [Microsoft] | 2 |
| Trojan-Spy.Win32.Zbot.dji [Kaspersky Lab] | 2 |
| Trojan-Spy.Win32.Zbot.dkf [Ikarus] | 2 |
| Trojan-Spy.Win32.Zbot.dkf [Kaspersky Lab] | 2 |
| Trojan-Spy.Win32.Zbot.dqu [Kaspersky Lab] | 2 |
| Trojan-Spy.Win32.Zbot.dri [Kaspersky Lab] | 2 |
| Win32.Outbreak.UPSRechnung [Ikarus] | 2 |
| Backdoor.Paproxy!sd6 [PC Tools] | 1 |
| Backdoor.Win32.Kbot.fg [Ikarus] | 1 |
| Backdoor.Win32.Kbot.fg [Kaspersky Lab] | 1 |
| Backdoor:Win32/Phdet.gen!A [Microsoft] | 1 |
| Generic BackDoor [McAfee] | 1 |
| Mal/EncPk-EI [Sophos] | 1 |
| New Malware.ix [McAfee] | 1 |
| Packed.Generic.187 [Symantec] | 1 |
| Troj/Agent-HJG [Sophos] | 1 |
| Troj/Agent-HJN [Sophos] | 1 |
| Troj/Spy-AT [Sophos] | 1 |
| Trojan-Spy.Zbot!ct [PC Tools] | 1 |
| Worm.Socks!sd6 [PC Tools] | 1 |
| Worm.Win32.Socks.agw [Ikarus] | 1 |
| Worm.Win32.Socks.agw [Kaspersky Lab] | 1 |