| Threat Alias | Number of Incidents |
| REG_ZAPCHAST.ED [Trend Micro] | 18,908 |
| Reg/IRCSpoolsv [McAfee] | 18,444 |
| Backdoor.IRC.Zapchast.zwrc [Kaspersky Lab] | 15,196 |
| Backdoor.IRC.Zapchast [Ikarus] | 13,804 |
| IRC.Backdoor.Trojan [Symantec] | 13,224 |
| REG/Zapchast [AhnLab] | 3,712 |
| Backdoor.Zapchast [Ikarus] | 2,204 |
|