[60399] in North American Network Operators' Group
Re: RPC errors
daemon@ATHENA.MIT.EDU (Jack Bates)
Mon Aug 11 16:52:31 2003
Date: Mon, 11 Aug 2003 15:51:57 -0500
From: Jack Bates <jbates@brightok.net>
To: Sean Donelan <sean@donelan.com>
Cc: NANOG <nanog@merit.edu>
In-Reply-To: <Pine.GSO.4.44.0308111616400.3565-100000@clifden.donelan.com>
Errors-To: owner-nanog-outgoing@merit.edu
Sean Donelan wrote:
> http://isc.sans.org/diary.html?date=2003-08-11
> The worm uses the RPC DCOM vulnerability to propagate. One it finds a
> vulnerable system, it will spawn a shell and use it to download the actual
> worm via tftp.
>
> The name of the binary is msblast.exe. It is packed with UPX and will self
> extract. The size of the binary is about 11kByte unpacked, and 6kBytes
> packed:
>
That shows what I'm seeing. 10% of all outbound packets are tcp/135.
Currently blocked both directions at edges in my network until further
notice. Keeping an eye on other ports, but this is the only one causing
any amount of load to draw concern.
-Jack
