| Threat Alias | Number of Incidents |
| Trojan-Spy.Win32.Zbot.gen [Kaspersky Lab] | 611 |
| Mal/Zbot-O [Sophos] | 424 |
| HeurEngine.MaliciousPacker [PC Tools] | 305 |
| PWS:Win32/Zbot.gen!R [Microsoft] | 259 |
| PWS:Win32/Zbot.PG [Microsoft] | 247 |
| Spy-Agent.bw.gen.e [McAfee] | 180 |
| Trojan-Spy.Win32.Zbot [Ikarus] | 145 |
| PWS:Win32/Zbot.gen!W [Microsoft] | 95 |
| Mal/Behav-353, Mal/EncPk-LE [Sophos] | 94 |
| Spy-Agent.eh [McAfee] | 55 |
| Mal/EncPk-LE, Mal/Behav-353 [Sophos] | 46 |
| BackDoor-DKI.gen.bf [McAfee] | 40 |
| Mal/Zbot-O, Mal/EncPk-CZ [Sophos] | 37 |
| PWS:Win32/Zbot.M [Microsoft] | 31 |
| Win32/IRCBot.worm.variant [AhnLab] | 18 |
| Generic PWS.cf [McAfee] | 15 |
| Mal/Generic-A [Sophos] | 10 |
| Mal/EncPk-KD [Sophos] | 7 |
| PWS.Win32 [Ikarus] | 7 |
| PWS-Zbot.gen.p [McAfee] | 6 |
| Trojan-Spy.Win32.Zbot.wtb [Kaspersky Lab] | 6 |
| Generic PWS.y!dp [McAfee] | 5 |
| Trojan-Banker.Win32.Bancos [Ikarus] | 5 |
| Mal/EncPk-LE [Sophos] | 4 |
| Mal/Generic-A, Mal/Zbot-O [Sophos] | 4 |
| PWS:Win32/Zbot.J [Microsoft] | 4 |
| PWS-Zbot [McAfee] | 4 |
| Trojan-Spy.Win32.Zbot.xud [Kaspersky Lab] | 4 |
| Win32/Ircbot.worm.variant [AhnLab] | 4 |
| Win-Trojan/Zbot.92160 [AhnLab] | 4 |
| Generic PWS.y!rt [McAfee] | 3 |
| Win-Trojan/Zbot.62976.X [AhnLab] | 3 |
| Mal/EncPk-LE, Mal/Zbot-R, Mal/Behav-353 [Sophos] | 2 |
| Mal/Zbot-O, Mal/Zbot-I, Mal/EncPk-CZ [Sophos] | 2 |
| PWS:Win32/Zbot.I [Microsoft] | 2 |
| PWS:Win32/Zbot.ZJ [Microsoft] | 2 |
| PWS-Banker!yn [McAfee] | 2 |
| Troj/QakBot-H [Sophos] | 2 |
| Trojan-Dropper.Win32.Zbot.i [Kaspersky Lab] | 2 |
| Trojan-Spy.Win32.Zbot.aadz [Kaspersky Lab] | 2 |
| Trojan-Spy.Win32.Zbot.aaec [Kaspersky Lab] | 2 |
| Trojan-Spy.Win32.Zbot.aajs [Kaspersky Lab] | 2 |
| Trojan-Spy.Win32.Zbot.xdk [Kaspersky Lab] | 2 |
| Trojan-Spy.Win32.Zbot.xep [Kaspersky Lab] | 2 |
| Trojan-Spy.Win32.Zbot.xet [Kaspersky Lab] | 2 |
| Trojan-Spy.Win32.Zbot.xez [Kaspersky Lab] | 2 |
| Win-Trojan/Injector.95744 [AhnLab] | 2 |
| Win-Trojan/Zbot.62976.S [AhnLab] | 2 |
| Win-Trojan/Zbot.62976.U [AhnLab] | 2 |
| Win-Trojan/Zbot.63488.Z [AhnLab] | 2 |
| Win-Trojan/Zbot.67584.O [AhnLab] | 2 |
| Win-Trojan/Zbot.81920.C [AhnLab] | 2 |
| Win-Trojan/Zbot.90624.D [AhnLab] | 2 |
| Win-Trojan/ZBot.95744 [AhnLab] | 2 |
| Generic PWS.y!bbm [McAfee] | 1 |
| Generic PWS.y!bhu [McAfee] | 1 |
| Generic PWS.y!bkt [McAfee] | 1 |
| Generic PWS.y!dh [McAfee] | 1 |
| Generic PWS.y!dk [McAfee] | 1 |
| Generic PWS.y!fp [McAfee] | 1 |
| Generic PWS.y!fr [McAfee] | 1 |
| Generic PWS.y!pr [McAfee] | 1 |
| Generic PWS.y!rf [McAfee] | 1 |
| Generic PWS.y!tx [McAfee] | 1 |
| Generic PWS.y!uj [McAfee] | 1 |
| Mal/Behav-353 [Sophos] | 1 |
| Mal/Generic-A, Mal/Behav-353, Mal/EncPk-LE [Sophos] | 1 |
| PWS:Win32/Zbot.PM [Microsoft] | 1 |
| PWS-Banker!wn [McAfee] | 1 |
| Troj/Farfli-Gen, Mal/EncPk-LE [Sophos] | 1 |
| Troj/Spy-CU [Sophos] | 1 |
| Troj/Zbot-GH [Sophos] | 1 |
| Trojan-Banker.Win32.Bancos.ezp [Kaspersky Lab] | 1 |
| Trojan-Banker.Win32.Bancos.fed [Kaspersky Lab] | 1 |
| Trojan-Banker.Win32.Bancos.fgb [Kaspersky Lab] | 1 |
| Trojan-Dropper.Win32.Zbot [Ikarus] | 1 |
| Trojan-Spy.Win32.Zbot.aadr [Kaspersky Lab] | 1 |
| Trojan-Spy.Win32.Zbot.aafh [Kaspersky Lab] | 1 |
| Trojan-Spy.Win32.Zbot.yyj [Kaspersky Lab] | 1 |
| Trojan-Spy.Zbot [Ikarus] | 1 |
| Trojan-Spy.Zbot.YETH [PC Tools] | 1 |
| Win-Trojan/Malware.89088.K [AhnLab] | 1 |
| Win-Trojan/Zbot.61952.J [AhnLab] | 1 |
| Win-Trojan/Zbot.62464.AD [AhnLab] | 1 |
| Win-Trojan/ZBot.62464.C [AhnLab] | 1 |
| Win-Trojan/Zbot.62976.AI [AhnLab] | 1 |
| Win-Trojan/Zbot.63488.AN [AhnLab] | 1 |
| Win-Trojan/ZBot.63488.B [AhnLab] | 1 |
| Win-Trojan/Zbot.63488.Q [AhnLab] | 1 |
| Win-Trojan/Zbot.63488.Y [AhnLab] | 1 |
| Win-Trojan/ZBot.64000.I [AhnLab] | 1 |
| Win-Trojan/ZBot.64000.O [AhnLab] | 1 |
| Win-Trojan/Zbot.64000.X [AhnLab] | 1 |
| Win-Trojan/Zbot.81408.N [AhnLab] | 1 |
| Win-Trojan/Zbot.83456.AJ [AhnLab] | 1 |
| Win-Trojan/Zbot.83456.E [AhnLab] | 1 |
| Win-Trojan/ZBot.88576.H [AhnLab] | 1 |
| Win-Trojan/Zbot.89088.Q [AhnLab] | 1 |
| Win-Trojan/Zbot.89088.Z [AhnLab] | 1 |
| Win-Trojan/ZBot.89600.K [AhnLab] | 1 |