| Threat Alias | Number of Incidents |
| TrojanDownloader:Win32/Tracur.A [Microsoft] | 217 |
| Troj/Agent-INP [Sophos] | 150 |
| P2P-Worm.Win32.Nugg [Ikarus] | 131 |
| Backdoor.Trojan [Symantec] | 118 |
| Trojan Horse [Symantec] | 90 |
| P2P-Worm.Win32.Nugg.af [Kaspersky Lab] | 35 |
| P2P-Worm.Win32.Nugg.al [Kaspersky Lab] | 35 |
| WORM_NUGG.C [Trend Micro] | 35 |
| Mal/Generic-A [Sophos] | 30 |
| P2P-Worm.Nugg!sd6 [PC Tools] | 30 |
| Win-Trojan/Agent.135168.EJ [AhnLab] | 26 |
| Trojan-Downloader.Win32.Tracur [Ikarus] | 23 |
| TrojanDownloader:Win32/Tracur.B [Microsoft] | 22 |
| Trojan-Dropper.Agent [Ikarus] | 22 |
| Trojan-Downloader.Agent.ACR [PC Tools] | 19 |
| P2P-Worm.Win32.Nugg.an [Kaspersky Lab] | 18 |
| Win32/Nugg.worm.471040 [AhnLab] | 17 |
| Win32/Nugg.worm.5169152 [AhnLab] | 17 |
| Mal/Behav-010, Mal/Behav-027 [Sophos] | 16 |
| Mal/Behav-027, Mal/Behav-010 [Sophos] | 13 |
| Trojan-Downloader.Win32.Agent.aoal [Kaspersky Lab] | 13 |
| Trojan-Dropper.Win32.Agent.anpy [Kaspersky Lab] | 13 |
| Win32/Nugg.worm.135168 [AhnLab] | 13 |
| Mal/Generic-E [Sophos] | 11 |
| P2P-Worm.Win32.Nugg.w [Kaspersky Lab] | 11 |
| Win-Trojan/Agent.151552.CY [AhnLab] | 10 |
| P2P-Worm.Win32.Nugg.av [Kaspersky Lab] | 9 |
| Trojan-Downloader.Agent!sd6 [PC Tools] | 9 |
| Win32/Nugg.worm.139264.C [AhnLab] | 9 |
| P2P-Worm.Win32.Nugg.ay [Kaspersky Lab] | 8 |
| P2P-Worm.Win32.Nugg.aw [Kaspersky Lab] | 7 |
| Troj/Agent-IKQ [Sophos] | 7 |
| Win-Trojan/Nugg.139264 [AhnLab] | 7 |
| Downloader [Symantec] | 6 |
| Generic Downloader.x [McAfee] | 6 |
| P2P-Worm.Win32.Nugg.az [Kaspersky Lab] | 5 |
| Trojan:Win32/Vundo.IZ [Microsoft] | 5 |
| Trojan-Dropper.Win32.Agent.apig [Kaspersky Lab] | 5 |
| Win32/Nugg.worm.139264.D [AhnLab] | 5 |
| Win-Trojan/Tracur.139264 [AhnLab] | 5 |
| P2P-Worm.Win32.Nugg.ao [Kaspersky Lab] | 4 |
| P2P-Worm.Win32.Nugg.v [Kaspersky Lab] | 4 |
| Trojan.Win32.Inject [Ikarus] | 4 |
| Trojan-Downloader.Win32.Agent.alqz [Kaspersky Lab] | 4 |
| Trojan-Downloader.Win32.Agent.atko [Kaspersky Lab] | 4 |
| Dropper/Agent.176128.X [AhnLab] | 3 |
| P2P-Worm.Win32.Nugg.as [Kaspersky Lab] | 3 |
| Trojan.Win32.Inject.ryn [Kaspersky Lab] | 3 |
| Trojan-Downloader.Win32.Agent.arsg [Kaspersky Lab] | 3 |
| Trojan-Dropper.Win32.Agent.aupk [Kaspersky Lab] | 3 |
| Win-Trojan/Inject.4165632 [AhnLab] | 3 |
| Downloader.Trojan [Symantec] | 2 |
| P2P-Worm.Nugg [PC Tools] | 2 |
| P2P-Worm.Win32.Nugg.ae [Kaspersky Lab] | 2 |
| P2P-Worm.Win32.Nugg.ar [Kaspersky Lab] | 2 |
| Trojan.Generic [PC Tools] | 2 |
| Win32/Nugg.worm.139264 [AhnLab] | 2 |
| Win32/Nugg.worm.139264.B [AhnLab] | 2 |
| Win-Trojan/Xema.variant [AhnLab] | 2 |
| P2P-Worm.Win32.Nugg.z [Kaspersky Lab] | 1 |
| Trojan.Inject!sd6 [PC Tools] | 1 |
| Trojan.Win32.Inject.rya [Kaspersky Lab] | 1 |
| Trojan-Downloader.Trojan!sd6 [PC Tools] | 1 |
| Trojan-Downloader.Win32.Agent.ahba [Kaspersky Lab] | 1 |
| Trojan-Downloader.Win32.Agent.akpo [Kaspersky Lab] | 1 |
| Trojan-Downloader.Win32.Agent.aoer [Kaspersky Lab] | 1 |
| Trojan-Dropper.Agent!sd6 [PC Tools] | 1 |
| Win-Trojan/Agent.126976.DD [AhnLab] | 1 |
| Win-Trojan/Agent.131072.DJ [AhnLab] | 1 |
| Win-Trojan/Agent.135168.DJ [AhnLab] | 1 |
| Win-Trojan/Agent.135168.DV [AhnLab] | 1 |