| Threat Alias | Number of Incidents |
| W32/Sdbot.worm [McAfee] | 501 |
| Generic.dx [McAfee] | 365 |
| Mal/Generic-A [Sophos] | 259 |
| Backdoor.Win32.Rbot.gen [Kaspersky Lab] | 252 |
| Win32/IRCBot.worm.variant [AhnLab] | 223 |
| W32/Sdbot.worm.gen.g [McAfee] | 204 |
| Backdoor:Win32/Rbot [Microsoft] | 198 |
| W32/Sdbot.worm.gen.a [McAfee] | 181 |
| Backdoor.IRCBot!sd6 [PC Tools] | 164 |
| Trojan.Win32.Crypt [Ikarus] | 163 |
| Trojan.Win32.Crypt.aqt [Kaspersky Lab] | 160 |
| Worm.Akbot.Gen [PC Tools] | 131 |
| Virus.Win32.Rbot [Ikarus] | 124 |
| Backdoor.Rbot [Ikarus] | 120 |
| W32/Sdbot.worm.gen.x [McAfee] | 117 |
| Worm:Win32/Pushbot.gen [Microsoft] | 117 |
| Generic PWS.y [McAfee] | 114 |
| Backdoor:Win32/Rbot.gen [Microsoft] | 113 |
| WORM_SPYBOT.GEN [Trend Micro] | 111 |
| W32/Rbot-GSL [Sophos] | 109 |
| Worm.Rbot.MCG [PC Tools] | 106 |
| Virus.Win32.IRCBot.BSX [Ikarus] | 95 |
| WORM_RBOT.GEN-1 [Trend Micro] | 81 |
| Trojan.Crypt!sd6 [PC Tools] | 80 |
| W32/Virut.gen [McAfee] | 79 |
| WORM_RBOT.GEN [Trend Micro] | 79 |
| Backdoor.SpyBoter [PC Tools] | 78 |
| BKDR_RBOT.ASA [Trend Micro] | 75 |
| Win-Trojan/Xema.variant [AhnLab] | 71 |
| Generic BackDoor [McAfee] | 65 |
| Backdoor.Rbot!sd5 [PC Tools] | 64 |
| Troj/Agent-JKY [Sophos] | 64 |
| Worm.RBot.Gen.14 [PC Tools] | 63 |
| Backdoor.Win32.Rbot.aeu [Kaspersky Lab] | 62 |
| Backdoor.Win32.SdBot.eba [Kaspersky Lab] | 61 |
| WORM_SDBOT.GAV [Trend Micro] | 61 |
| W32/Sdbot.worm.gen.h [McAfee] | 60 |
| Backdoor.Win32.Rbot.aea [Kaspersky Lab] | 59 |
| Backdoor.Win32.Rbot.aus [Kaspersky Lab] | 57 |
| Virus.Win32.Virut.n [Kaspersky Lab] | 57 |
| VirTool:Win32/CeeInject.gen!J [Microsoft] | 56 |
| Packed/Themida [PC Tools] | 54 |
| W32/Sdbot.worm.gen [McAfee] | 54 |
| W32/Virut.gen.a [McAfee] | 53 |
| Trojan:Win32/Ircbrute [Microsoft] | 51 |
| W32/Sdbot.worm.gen.ci [McAfee] | 49 |
| Worm.RBot.Gen.16 [PC Tools] | 49 |
| Backdoor.Win32.IRCBot.gen [Kaspersky Lab] | 48 |
| Mal/Behav-285 [Sophos] | 46 |
| New Malware.bl [McAfee] | 46 |
| Mal/Packer [Sophos] | 45 |
| VirTool.Win32.CeeInject [Ikarus] | 42 |
| Backdoor.IRCBot!sd5 [PC Tools] | 41 |
| Win32.Virut.Gen [PC Tools] | 41 |
| Backdoor.Win32.EggDrop.v [Kaspersky Lab] | 40 |
| AdWare.BHO [Ikarus] | 39 |
| Backdoor.SdBot!sd5 [PC Tools] | 39 |
| Backdoor.Win32.SdBot [Ikarus] | 39 |
| Win32/IRCBot.worm.Gen [AhnLab] | 39 |
| Backdoor:Win32/Poebot.gen [Microsoft] | 38 |
| Worm.IRCBot.UXP [PC Tools] | 38 |
| W32/Gaobot.worm.gen.u [McAfee] | 37 |
| Backdoor.Rbot.Gen [PC Tools] | 35 |
| Generic BackDoor.k [McAfee] | 35 |
| Generic Downloader.x [McAfee] | 34 |
| Win32.Virut.Gen.4 [PC Tools] | 34 |
| Backdoor.Rbot [PC Tools] | 33 |
| Backdoor.Win32.IRCBot [Ikarus] | 33 |
| W32/Sdbot.worm.gen.ca [McAfee] | 33 |
| PE_VIRUT.AV [Trend Micro] | 32 |
| W32/Spybot.worm.gen [McAfee] | 32 |
| Worm.Kolab.xc [PC Tools] | 32 |
| Worm.RBot.UPX [PC Tools] | 32 |
| Net-Worm.Win32.Kolab [Ikarus] | 31 |
| WORM_GAOBOT.DF [Trend Micro] | 31 |
| Backdoor.Win32.Ciadoor.gn [Kaspersky Lab] | 30 |
| StartPage-KG [McAfee] | 29 |
| TROJ_XPACK.TY [Trend Micro] | 29 |
| Backdoor.Win32.SdBot.aad [Kaspersky Lab] | 28 |
| BKDR_MYBOT.AH [Trend Micro] | 28 |
| Exploit-DcomRpc.gen [McAfee] | 28 |
| New Malware.b [McAfee] | 28 |
| Trojan-Dropper.Agent [Ikarus] | 28 |
| Backdoor.Win32.Rbot.bqj [Kaspersky Lab] | 27 |
| Trojan.Win32.Buzus [Ikarus] | 27 |
| W32/Sdbot.worm.gen.ax [McAfee] | 26 |
| Net-Worm.Win32.Kolab.bdk [Kaspersky Lab] | 25 |
| PE_VIRUT.D [Trend Micro] | 25 |
| W32/Sdbot.worm.gen.as [McAfee] | 25 |
| Worm.Rbot.ABCC [PC Tools] | 24 |
| Trojan.Obfuscated.QB [PC Tools] | 23 |
| Trojan.Win32.Obfuscated.hf [Kaspersky Lab] | 23 |
| Mal/EncPk-DM [Sophos] | 22 |
| Virus.Win32.Virut.av [Kaspersky Lab] | 22 |
| Virus.Win32.Virut.q [Kaspersky Lab] | 22 |
| Worm.RBot.Gen.23 [PC Tools] | 22 |
| Backdoor.SdBot [PC Tools] | 21 |
| Packed.Win32.Black.a [Kaspersky Lab] | 21 |
| Trojan-Downloader.Win32.Agent.bl [Kaspersky Lab] | 21 |
| W32/IRCbot.gen.a [McAfee] | 21 |