| Threat Alias | Number of Incidents |
| Trojan-Spy.Win32.Zbot [Ikarus] | 365 |
| Trojan-Spy.Win32.Zbot.gen [Kaspersky Lab] | 346 |
| PWS:Win32/Zbot.gen!R [Microsoft] | 336 |
| Win32/IRCBot.worm.variant [AhnLab] | 298 |
| Trojan-PSW.Banker [PC Tools] | 216 |
| Mal/Generic-A [Sophos] | 171 |
| PWS-Zbot.gen.c [McAfee] | 151 |
| Generic PWS.y [McAfee] | 137 |
| Mal/EncPk-CZ [Sophos] | 130 |
| TrojanSpy:Win32/Zbot.gen!C [Microsoft] | 128 |
| Mal/Zbot-O [Sophos] | 125 |
| PWS:Win32/Zbot.G [Microsoft] | 94 |
| Spy-Agent.bw.gen.e [McAfee] | 86 |
| Troj/ZbotPP-Fam [Sophos] | 77 |
| TSPY_BANKRYPT.X [Trend Micro] | 73 |
| Cryp_Pai-5 [Trend Micro] | 70 |
| PWS:Win32/Zbot.J [Microsoft] | 70 |
| PWS-Banker.gen.bw [McAfee] | 67 |
| TrojanSpy.ZBot.Gen!Pac.3 [PC Tools] | 67 |
| Trojan-Spy.Banker!sd6 [PC Tools] | 63 |
| TrojanSpy.Bancos.AAM [PC Tools] | 59 |
| Trojan-Spy.Win32.Zbot.zr [Kaspersky Lab] | 59 |
| Trojan-Spy.Win32.Bancos.aam [Ikarus] | 58 |
| PWS:Win32/Zbot.gen!B [Microsoft] | 54 |
| Win-Trojan/Bancos.40960.Z [AhnLab] | 53 |
| Mal/Behav-045, Mal/Zbot-A [Sophos] | 52 |
| PWS:Win32/Zbot.PG [Microsoft] | 46 |
| Trojan-Spy.Win32.Zbot.anp [Ikarus] | 45 |
| PWS:Win32/Zbot [Microsoft] | 42 |
| Mal/Zbot-I [Sophos] | 40 |
| PWS.Win32 [Ikarus] | 40 |
| TrojanSpy.ZBot.Gen!Pac.4 [PC Tools] | 40 |
| Spy-Agent.bw [McAfee] | 36 |
| Troj/Zbot-L [Sophos] | 36 |
| Trojan:Win32/Zbot.BX [Microsoft] | 36 |
| Trojan-Spy.Zbot!sd6 [PC Tools] | 35 |
| Generic.dx [McAfee] | 34 |
| Spy-Agent.bw.gen.i [McAfee] | 33 |
| Trojan.Win32.Zbot [Ikarus] | 33 |
| Win-Trojan/Xema.variant [AhnLab] | 33 |
| Troj/ZbotPP-Fam, Mal/EncPk-CZ [Sophos] | 31 |
| PWS:Win32/Zbot.I [Microsoft] | 30 |
| Trojan-Spy.Zbot [Ikarus] | 30 |
| Spy-Agent.bw.gen.d [McAfee] | 29 |
| Backdoor.Win32.Bredavi.ahy [Kaspersky Lab] | 28 |
| Mal/EncPk-HZ [Sophos] | 28 |
| Troj/Zbot-DX [Sophos] | 28 |
| PWS:Win32/Zbot.UO [Microsoft] | 26 |
| PWS-Zbot [McAfee] | 26 |
| VirTool:Win32/DelfInject.gen!AC [Microsoft] | 26 |
| Mal/EncPk-HJ [Sophos] | 25 |
| Mal/WaledPak-A [Sophos] | 25 |
| Mal/Dropper-T [Sophos] | 23 |
| Mal/Zbot-O, Mal/EncPk-CZ [Sophos] | 21 |
| Mal/Zbot-P [Sophos] | 21 |
| Trojan.Win32.Obfuscater [Ikarus] | 20 |
| Downloader-BNY [McAfee] | 19 |
| FakeAlert-DA [McAfee] | 19 |
| Spy-Agent.bw.gen.c [McAfee] | 19 |
| TSPY_ZBOT.CAR [Trend Micro] | 19 |
| Mal/Dorf-F [Sophos] | 18 |
| Win-Trojan/Zbot.66048 [AhnLab] | 18 |
| Mal/Zbot-H [Sophos] | 17 |
| Backdoor:Win32/Poebot.gen [Microsoft] | 15 |
| Downloader-BON [McAfee] | 15 |
| HackTool.Win32.Crypt [Ikarus] | 15 |
| Trojan-Spy.Win32.Zbot.soo [Kaspersky Lab] | 15 |
| Mal/EncPk-HF, Mal/EncPk-CZ [Sophos] | 14 |
| Mal/TibsPak [Sophos] | 14 |
| PWS:Win32/Zbot.M [Microsoft] | 14 |
| Trojan-Dropper.Delf [Ikarus] | 14 |
| Mal/Zbot-D [Sophos] | 13 |
| PWS:Win32/Zbot.PK [Microsoft] | 13 |
| Backdoor.Win32.Nepoe.po [Kaspersky Lab] | 12 |
| Mal/EncPk-DB [Sophos] | 12 |
| Mal/EncPk-FS [Sophos] | 12 |
| Mal/EncPk-IY [Sophos] | 12 |
| Troj/Musor-Gen [Sophos] | 12 |
| Trojan:Win32/Malagent [Microsoft] | 12 |
| Trojan:Win32/Malat [Microsoft] | 12 |
| Trojan:Win32/Zbot.BY [Microsoft] | 12 |
| Virus.Win32.Zbot [Ikarus] | 12 |
| Mal/EncPk-IF [Sophos] | 11 |
| VirTool:Win32/Vbinder.gen!G [Microsoft] | 11 |
| Virus.Win32.Enteos [Ikarus] | 11 |
| Generic Dropper.bw [McAfee] | 10 |
| Mal/EncPk-HF, Mal/EncPk-CZ, Mal/TibsPak [Sophos] | 10 |
| Mal/EncPk-HP [Sophos] | 10 |
| PWS:Win32/Zbot.PI [Microsoft] | 10 |
| PWS-Zbot.gen.i [McAfee] | 10 |
| Spy-Agent.bw.gen.b [McAfee] | 10 |
| Troj/FakeAle-LE [Sophos] | 10 |
| TrojanSpy:Win32/Mafod!rts [Microsoft] | 10 |
| TSPY_ZBOT.SM [Trend Micro] | 10 |
| Win-Trojan/Zbot.73216 [AhnLab] | 10 |
| Generic BackDoor!bgj [McAfee] | 9 |
| Mal/Behav-353 [Sophos] | 9 |
| PWS:Win32/Zbot.gen!E [Microsoft] | 9 |
| PWS:Win32/Zbot.NK [Microsoft] | 9 |
| PWS-Banker [McAfee] | 9 |