| Threat Alias | Number of Incidents |
| Downloader-BMN [McAfee] | 217 |
| Troj/Agent-INP [Sophos] | 134 |
| P2P-Worm.Win32.Nugg [Ikarus] | 125 |
| Backdoor.Trojan [Symantec] | 117 |
| Trojan Horse [Symantec] | 98 |
| Trojan-Downloader.Win32.Tracur [Ikarus] | 66 |
| Mal/Generic-A [Sophos] | 51 |
| Trojan-Dropper.Agent [Ikarus] | 42 |
| P2P-Worm.Win32.Nugg.an [Kaspersky Lab] | 38 |
| P2P-Worm.Win32.Nugg.al [Kaspersky Lab] | 35 |
| P2P-Worm.Win32.Nugg.af [Kaspersky Lab] | 33 |
| Generic Downloader.x [McAfee] | 31 |
| WORM_NUGG.C [Trend Micro] | 31 |
| P2P-Worm.Nugg!sd6 [PC Tools] | 27 |
| Win-Trojan/Agent.135168.EJ [AhnLab] | 26 |
| Mal/Behav-027, Mal/Behav-010 [Sophos] | 24 |
| Win32/Nugg.worm.5169152 [AhnLab] | 23 |
| Trojan-Downloader.Agent!sd6 [PC Tools] | 21 |
| Troj/Agent-IKQ [Sophos] | 18 |
| Win32/Nugg.worm.471040 [AhnLab] | 18 |
| Downloader [Symantec] | 17 |
| Trojan-Dropper.Win32.Agent.anpy [Kaspersky Lab] | 17 |
| Trojan-Downloader.Agent.ACR [PC Tools] | 16 |
| Trojan-Downloader.Win32.Agent.aoal [Kaspersky Lab] | 16 |
| P2P-Worm.Win32.Nugg.w [Kaspersky Lab] | 15 |
| Mal/Behav-010, Mal/Behav-027 [Sophos] | 12 |
| Mal/Generic-E [Sophos] | 12 |
| Trojan-Downloader.Win32.Agent.atko [Kaspersky Lab] | 10 |
| P2P-Worm.Win32.Nugg.aw [Kaspersky Lab] | 9 |
| Trojan-Downloader.Win32.Agent.arsg [Kaspersky Lab] | 9 |
| Win32/Nugg.worm.135168 [AhnLab] | 9 |
| Win-Trojan/Nugg.139264 [AhnLab] | 9 |
| Win-Trojan/Agent.151552.CY [AhnLab] | 8 |
| Trojan-Downloader.Tracur [PC Tools] | 7 |
| TrojanDownloader:Win32/Tracur.B [Microsoft] | 7 |
| Trojan.Win32.Inject [Ikarus] | 6 |
| Trojan.Win32.Inject.ryn [Kaspersky Lab] | 6 |
| P2P-Worm.Win32.Nugg.v [Kaspersky Lab] | 5 |
| Trojan-Downloader.Win32.Agent.aseo [Kaspersky Lab] | 5 |
| Trojan-Dropper.Win32.Agent.apig [Kaspersky Lab] | 5 |
| Downloader.Trojan [Symantec] | 4 |
| Generic.dx [McAfee] | 4 |
| P2P-Worm.Win32.Nugg.ao [Kaspersky Lab] | 4 |
| P2P-Worm.Win32.Nugg.av [Kaspersky Lab] | 4 |
| Win32/Nugg.worm.139264.C [AhnLab] | 4 |
| Win-Trojan/Inject.4165632 [AhnLab] | 4 |
| Dropper/Agent.176128.X [AhnLab] | 3 |
| Dropper/MulDrop.6480896 [AhnLab] | 3 |
| P2P-Worm.Win32.Nugg.as [Kaspersky Lab] | 3 |
| Troj/Agent-ISY [Sophos] | 3 |
| Trojan.Win32.Agent.cvwe [Kaspersky Lab] | 3 |
| Trojan-Dropper.Win32.Agent.aupk [Kaspersky Lab] | 3 |
| P2P-Worm.Nugg [PC Tools] | 2 |
| P2P-Worm.Win32.Nugg.ae [Kaspersky Lab] | 2 |
| P2P-Worm.Win32.Nugg.ah [Kaspersky Lab] | 2 |
| P2P-Worm.Win32.Nugg.aj [Kaspersky Lab] | 2 |
| P2P-Worm.Win32.Nugg.ar [Kaspersky Lab] | 2 |
| P2P-Worm.Win32.Nugg.ay [Kaspersky Lab] | 2 |
| Trojan.Generic [PC Tools] | 2 |
| Trojan.Inject!sd6 [PC Tools] | 2 |
| Trojan-Downloader.Trojan!sd6 [PC Tools] | 2 |
| Virus.P2P.Worm.Win32.Nugg [Ikarus] | 2 |
| Win32/Nugg.worm.139264 [AhnLab] | 2 |
| Win32/Nugg.worm.139264.B [AhnLab] | 2 |
| Win32/Nugg.worm.159744 [AhnLab] | 2 |
| Win-Trojan/Xema.variant [AhnLab] | 2 |
| Downloader.Delphi [Ikarus] | 1 |
| Downloader-BMN!a [McAfee] | 1 |
| Dropper/Agent.317552 [AhnLab] | 1 |
| Dropper/Malware.532480.I [AhnLab] | 1 |
| Generic Downloader.x!bah [McAfee] | 1 |
| Generic Downloader.x!bga [McAfee] | 1 |
| Generic Downloader.x!bid [McAfee] | 1 |
| Generic Downloader.x!yv [McAfee] | 1 |
| P2P-Worm.Win32.Nugg.bn [Kaspersky Lab] | 1 |
| P2P-Worm.Win32.Nugg.z [Kaspersky Lab] | 1 |
| Troj/DwnLdr-HNI [Sophos] | 1 |
| Troj/DwnLdr-HNW [Sophos] | 1 |
| Trojan.Win32.Agent.blxw [Kaspersky Lab] | 1 |
| Trojan.Win32.Inject.rya [Kaspersky Lab] | 1 |
| Trojan-Downloader.Win32.Agent.akpo [Kaspersky Lab] | 1 |
| Trojan-Downloader.Win32.Agent.aoer [Kaspersky Lab] | 1 |
| Trojan-Downloader.Win32.Agent.cmnj [Kaspersky Lab] | 1 |
| Trojan-Downloader.Win32.Agent.cmnk [Kaspersky Lab] | 1 |
| Trojan-Dropper.Agent!sd6 [PC Tools] | 1 |
| Trojan-Dropper.Win32.Agent.agaw [Kaspersky Lab] | 1 |
| Win-Trojan/Agent.135168.DV [AhnLab] | 1 |
| Win-Trojan/Agent.190976.DN [AhnLab] | 1 |
| Win-Trojan/Agent.214528.AB [AhnLab] | 1 |
| Win-Trojan/Tracur.139264 [AhnLab] | 1 |