mailing list archives
Re: Worm probes
From: Chris Grout <cgrout () chrisgrout com>
Date: Tue, 18 Sep 2001 08:52:37 -0700
Appears that if it gets a 404 back from its intial unicode scans, it just
keeps looking elsewhere. If the server responds with anything other than a
404 (such as a 403 IP Rejected, in this case...) It attempts to get the
server to tftp a file named "admin.dll" from the scanning system.
I pulled the admin.dll from an infected box and to my non-programming eyes,
it appears to do at least the following (in no order):
1. Adds the guest account to the local Administrators group and then
activates the account
2. Use the anonymous
3. Makes sure c$ is shared
4. Tries to mail a bunch of files. HELO it uses is aabbcc. <*** Might
be able to use this for a quick and dirty IDS Sig***>
5. Looks like admin.dll ends up in "c", "d" and "e".
6. creates a file named readme.exe which is actually a wav file (weird?)
I could be totally wrong here (and probably am) but oh well...