| Threat Alias | Number of Incidents |
| Backdoor.IRC.Zapchast [Ikarus] | 153 |
| IRC/Flood.gen.b [McAfee] | 141 |
| Backdoor.IRC.Zapchast.zwrc [Kaspersky Lab] | 137 |
| mIRC/Zapchast [AhnLab] | 49 |
| Backdoor.IRC.Zapchast [Kaspersky Lab] | 16 |
| Backdoor.IRC.Aladinz [Symantec] | 14 |
| Backdoor.IRC.Zapchast [PC Tools] | 9 |
| Backdoor:IRC/IRCFlood [Microsoft] | 3 |
| Backdoor.IRC.Zapchast.h [Kaspersky Lab] | 2 |
| mIRC/Zapchas [AhnLab] | 2 |
| BackDoor-GI.ini [McAfee] | 1 |