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From: nick at (Nick FitzGerald)
Subject: 3127/tcp by Doomjuice (Kaspersky) - MyDoom

"Erik van Straten" <> wrote:

> I've observed a rapid increase in 3127/tcp scans from seemingly
> random IP's. They're sequentially scanning our IP's, bottom-up.

As have many others:

> These seem to match Kasperky's Doomjuice (published ~ 3 hours ago):
> Details, incl. address generation algorithm:
> Supposedly it also causes a DDoS agains Microsoft.
> Note that this one seems to differ from Symantec's Deadhat:
> According to Symantec's description, Deadhat scans 3127/tcp, 3128/tcp
> and 1080/tcp (I've seen one or two of those).

Yes -- Deadhat (more correctly known as Vesser) was found late Friday 
or early Saturday (depending on your TZ) but this new one, DoomJuice, 
(incorrectly originally classified as a Mydoom variant and thus called 
Mydoom.C by some) has only been isolated and analysed in the last few 

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

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