full-disclosure - rpc worm

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Message-ID: <41B1FD84D49E05448A4233378E6BF47501F4A73A@entmsgnt03.fm.frd.fmlh.edu>
From: jheidtke at fmlh.edu (Jerry Heidtke)
Subject: rpc worm

I don't know about Symantec, but for McAfee, dat version 4282 (current
before today) didn't detect it at all, 4283 could detect it but not
clean, and 4284, out within the past two hours, can detect, block, and
clean.

Jerry

-----Original Message-----
From: Jordan Wiens [mailto:jwiens@...sp.nerdc.ufl.edu] 
Sent: Monday, August 11, 2003 5:23 PM
To: Jason Coombs
Cc: full-disclosure@...ts.netsys.com
Subject: RE: [Full-Disclosure] rpc worm

Thank goodness it's based on that since it means that existing symantec
and mcafee sigs will pick it up, making it easier to help end-users here
deal with it.

Hopefully people will now shut up about firewalling netbios at the
internet now.  We did, and it looks like it only delayed infection
internally until about 3pm EST, as opposed to maybe 1pm EST which looks
like the earliest we started seeing an increase in external scanning.

-- 
Jordan Wiens, CISSP
UF Network Incident Response Team
(352)392-2061

On Mon, 11 Aug 2003, Jason Coombs wrote:

> It appears that the exploit and bindshell portion of the msblast worm
is
> vanilla, off-the-shelf "oc192-dcom.c"
>
> The only novel code is likely the scripted commands sent to the remote
shell
> via port 4444
>
> -----Original Message-----
> From: full-disclosure-admin@...ts.netsys.com
> [mailto:full-disclosure-admin@...ts.netsys.com]On Behalf Of Jordan
Wiens
> Sent: Monday, August 11, 2003 10:23 AM
> To: full-disclosure@...ts.netsys.com
> Subject: [Full-Disclosure] rpc worm
>
>
> We're seeing what looks like an rpc worm spreading internally (gotta
love
> dialup users), and I'm trying to figure out if this is something new,
or
> just something old that we finally are getting.
>
> I'm not entirely sure it's a worm, it almost appears to be an
auto-rooter
> with quick spreading ability (fine line between that and a worm, I
> suppose).  Has anybody else seen something with these characteristics:
>
> Host scans local subnet first, looking for vulnerable machines and
opening
> up port 4444 on the remote host, and running the following:
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