Re: Outbreak warning: possibly Mydoom.C (Now Deadhat/Vesser)

[Nick FitzGerald <nick () virus-l demon co uk>]

K-OTiK Security <Special-Alerts () k-otik com> wrote:

> it's not mydoom.c - ...

Correct.

> ... his name is Vesser (W32.HLLW.Deadhat) :

Not.

Vesser (which a few AV companies have called Deadhat) was discovered 
early in the weekend spreading via Mydoom.A-infected machiens (and 
rpesumably it would also hit the occasional Mydoom,.B out there too).  
What Gadi alerted on as Mydoom.C has been agreed following analysis by 
AV industry experts to be sufficiently different in critical ways from 
Mydoom to be put in a new family and will be called Doomjuice.A by most 
AVs.

> Vesser mainly targets computers that have previously been infected
> with the Mydoom.A or Mydoom.B worms. Vesser scans for the backdoors in
> those worms on IP addresses. While doing that it connects to TCP ports
> 1080. 3127 and 3128 and tries to copy itself there in a
> specially-crafted package. 
>
> http://www.f-secure.com/v-descs/vesser.shtml
> http://securityresponse.symantec.com/avcenter/venc/data/w32.hllw.deadhat.html

Correct, but irrelevant to this thread...


-- 
Nick FitzGerald
Computer Virus Consulting Ltd.
Ph/FAX: +64 3 3529854