| Threat Alias | Number of Incidents |
| PE_VIRUT.CEL [Trend Micro] | 31 |
| Win32.Virut.Gen.4 [PC Tools] | 30 |
| W32/Virut.j [McAfee] | 29 |
| W32.Virut.W [Symantec] | 27 |
| W32/Virut-X [Sophos] | 26 |
| Virus:Win32/Virut.BA [Microsoft] | 15 |
| Virus.Win32.Sality [Ikarus] | 10 |
| Virus:Win32/Virut.gen!AI [Microsoft] | 10 |
| Win32/Virut.Gen [AhnLab] | 5 |
| W32.SillyFDC [Symantec] | 2 |
| Win32.Virtob.BV [Ikarus] | 2 |
| Backdoor.Win32.Frauder.fb [Ikarus] | 1 |
| Downloader-ASH.gen.b [McAfee] | 1 |
| PWS:Win32/Frethog.D [Microsoft] | 1 |
| Spam-Mailbot [McAfee] | 1 |
| Virus.Virut.GEN [PC Tools] | 1 |
| Virus.Win32.Sality.s [Ikarus] | 1 |