| Threat Alias | Number of Incidents |
| VirTool:WinNT/Xantvi.gen!A [Microsoft] | 448 |
| Hacktool.Rootkit [Symantec] | 440 |
| FakeAlert-C.dr [McAfee] | 323 |
| Backdoor.Win32.UltimateDefender [Ikarus] | 284 |
| Backdoor.Win32.UltimateDefender.a [Kaspersky Lab] | 233 |
| Rootkit.Renos.Gen.11 [PC Tools] | 215 |
| Backdoor.Win32.UltimateDefender.igv [Kaspersky Lab] | 195 |
| NTRootKit-AC [McAfee] | 177 |
| Trojan.Virantix.C [Symantec] | 107 |
| Adware.Agent.ZO [PC Tools] | 56 |
| not-a-virus:FraudTool.Win32.UltimateDefender.cm [Ikarus] | 52 |
| Backdoor.Win32.UltimateDefender.xm [Kaspersky Lab] | 50 |
| not-a-virus:FraudTool.Win32.UltimateDefender.cm [Kaspersky Lab] | 50 |
| VirTool:WinNT/Xantvi.A [Microsoft] | 50 |
| not-a-virus:.FraudTool.Win32.UltimateDefender.cm [Ikarus] | 44 |
| TROJ_RENOS.AKQ [Trend Micro] | 8 |
| not-a-virus:.FraudTool [Ikarus] | 5 |
| TROJ_VIRANTIX.AQ [Trend Micro] | 4 |
| Win-Trojan/Rootkit.29184.C [AhnLab] | 4 |
| Backdoor.UltimateDefender [PC Tools] | 3 |
| Hacktool.Rootkit!sd6 [PC Tools] | 3 |
| Backdoor.UltimateDefender!sd6 [PC Tools] | 2 |
| Backdoor.Win32.UltimateDefender.ict [Kaspersky Lab] | 2 |
| Generic BackDoor!l [McAfee] | 2 |
| TROJ_VIRANTIX.C [Trend Micro] | 2 |
| Win-Trojan/Ultimatedefender.20992.B [AhnLab] | 2 |
| Win-Trojan/Ultimatedefender.28160.AT [AhnLab] | 2 |
| Win-Trojan/Ultimatedefender.28672.B [AhnLab] | 2 |
| Backdoor.Win32.UltimateDefender.ifz [Kaspersky Lab] | 1 |
| Backdoor.Win32.UltimateDefender.igl [Kaspersky Lab] | 1 |
| Generic PUP.x [McAfee] | 1 |
| RogueAntiSpyware.XPAntispyware [PC Tools] | 1 |
| VirTool.WinNT.Xantvi [Ikarus] | 1 |
| Win-Trojan/Rootkit.27136.B [AhnLab] | 1 |
| Win-Trojan/Ultimatedefender.27136.O [AhnLab] | 1 |
| Win-Trojan/Ultimatedefender.27648.AB [AhnLab] | 1 |
| Win-Trojan/Ultimatedefender.27648.AM [AhnLab] | 1 |
| Win-Trojan/Ultimatedefender.27648.BP [AhnLab] | 1 |
| Win-Trojan/Ultimatedefender.27648.BX [AhnLab] | 1 |
| Win-Trojan/Ultimatedefender.28160.D [AhnLab] | 1 |
| Win-Trojan/Ultimatedefender.28160.DO [AhnLab] | 1 |
| Win-Trojan/Ultimatedefender.29184.M [AhnLab] | 1 |
| Win-Trojan/Ultimatedefender.32768.J [AhnLab] | 1 |
| Win-Trojan/Xantvi.29184 [AhnLab] | 1 |
| Win-Trojan/Xantvi.29184.B [AhnLab] | 1 |