| Threat Alias | Number of Incidents |
| Email-Worm.Win32.Runouce.b [Kaspersky Lab] | 107 |
| W32/Chir.b@MM [McAfee] | 106 |
| PE_Chir.B-O [Trend Micro] | 105 |
| W32/Chir-B [Sophos] | 105 |
| W32.Chir.B@mm [Symantec] | 98 |
| Virus:Win32/Chir.B@mm [Microsoft] | 97 |
| I-Worm.Chir.B [PC Tools] | 79 |
| Email-Worm.Win32.Runouce [Ikarus] | 68 |
| Email-Worm.Win32.Runouce.B [Ikarus] | 20 |
| Email-Worm.Runouce!sd5 [PC Tools] | 8 |
| Email-Worm.Runonce!ct [PC Tools] | 4 |
| JS.Chir.B [PC Tools] | 4 |
| W32.Virut.U [Symantec] | 2 |
| W32/Vetor-A [Sophos] | 2 |
| W32/Virut.gen [McAfee] | 2 |
| Win32.Virut.Gen.5 [PC Tools] | 2 |
| PE_CHIR.DAM [Trend Micro] | 1 |
| PE_VIRUT.XO [Trend Micro] | 1 |
| PE_VIRUT.XP [Trend Micro] | 1 |
| Virus:Win32/Virut.AP [Microsoft] | 1 |
| Virus:Win32/Virut.K [Microsoft] | 1 |