| Threat Alias | Number of Incidents |
| W32.Wullik@mm [Symantec] | 68 |
| W32/Wukill.worm.gen [McAfee] | 68 |
| Email-Worm.Win32.Rays [Kaspersky Lab] | 56 |
| Email-Worm.Rays [PC Tools] | 54 |
| W32/Wukill-B [Sophos] | 12 |
| Worm:Win32/Wukill.F@mm [Microsoft] | 10 |
| Email-Worm.Win32.Rays.c [Kaspersky Lab] | 9 |
| Win32/Rays.worm.49152 [AhnLab] | 7 |
| I-Worm.Wukill.B [PC Tools] | 6 |
| Email-Worm.Win32.Rays [Ikarus] | 4 |
| Exploit.HTML.Agent.am [Kaspersky Lab] | 3 |
| Email-Worm.Rays!sd5 [PC Tools] | 2 |
| W32/Generic.m [McAfee] | 2 |
| Demiurg.16354 [PC Tools] | 1 |
| Email-Worm.VB!sd5 [PC Tools] | 1 |
| Email-Worm.Win32.VB.bo [Kaspersky Lab] | 1 |
| Email-Worm.Win32.VB.bx [Kaspersky Lab] | 1 |
| I-Worm.VB.EWZ [PC Tools] | 1 |
| Trojan:Win32/Agent [Microsoft] | 1 |
| W32.Demig.16354 [Symantec] | 1 |
| W32.Feldor.A [Symantec] | 1 |
| W32/Traxg-F [Sophos] | 1 |
| Worm:Win32/Wukill.BG@mm [Microsoft] | 1 |
| Worm:Win32/Wukill@mm.gen!A [Microsoft] | 1 |