Sober.K worm was seeded in e-mails on 21st of February 2005. It is quite similar to the previous variants. Sober.K sends itself as an attachment in e-mail ...
www.f-secure.com/v-descs/sober_k.shtml

The Sober.Y worm was found on November 16th, 2005, however it became widespread only on November 21st. This Sober variant is similar to both Sober.K ...
www.f-secure.com/v-descs/sober_y.shtml

K) --> Email-Worm.Win32.Sober.l (Sober.L) --> Email-Worm.Win32.Sober.p (Sober.P) --> Email-Worm.Win32.Sober.q (Sober.Q) --> Email-Worm.Win32.Sober.s (Sober. ...
www.f-secure.com/v-descs/e.shtml

F --> Sober.G --> Sober.H --> Sober.I --> Sober.J --> Sober.K --> Sober.L --> Sober.N --> Sober.P --> Sober.Q --> Sober.S --> Sober.S dropper (Sober. ...
www.f-secure.com/v-descs/s.shtml

I@mm (Sober.I) --> W32/Sober.J@mm (Sober.J) --> W32/Sober.K@mm (Sober.K) --> W32 /Sober.S.dr (Sober.S.dr) --> W32/Sober.S.dr1 (Sober.S.dr1) --> W32/Sober. ...
www.f-secure.com/v-descs/w.shtml

S) --> CME-681 (Sober.Y) --> CMOS-1 (ExeBug) --> CNDER (Jerusalem) --> COM ... K --> Cabir.L --> Cabir.M --> Cabir.N --> Cabir.O --> Cabir.P --> Cabir. ...
www.f-secure.com/v-descs/c.shtml

S.dr) --> VB.iw (Sober.S.dr1) --> VBA.CLASS --> VBA.CLASS.GEN.EXPORT (VBA. ... K @mm --> VBSWG.L --> VBSWG.M --> VBSWG.N@mm --> VBSWG.Q@mm --> VBSWG. ...
www.f-secure.com/v-descs/v.shtml