full-disclosure - Catching Sasser

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From: shash at etisalat-nis.ae (Shashank Rai)
Subject: Catching Sasser

Hi all,
for people who did have not the priviledge of getting infected with
sasser ;) because of firewall/AV/patch or they are smart enough to use
Linux (like me.... hey now no flame war on this *please*), here is a
simple way to catch sasser:

Step 1:Scanning for infected machines (from a Linux box):
---------------------------------------------------------
Get doscan from:http://www.enyo.de/fw/software/doscan/

compile n run:
# doscan -A 50 -b 512 -c 100 -i -p 5554 -P tcp -r "200 OK$" -v <IP
RANGE>

This will give you list of infected machines.

Step Two: Getting the virus
---------------------------
Copy the following set of commands into a file (or type them from ftp
prompt):
---------ftp_commands------
open <infected m/c IP> 5554
anonymous
user
bin
get 7584_up.exe 
bye
----------------------
then from cmd prompt of your *windows* machine, run:

c:\>ftp -s:ftp_commands

This will fetch you a copy of the virus as 7584_up.exe.
The ftp_commands, actually logs into the ftp server of sasser on port
5554 of the infected machine with username "anonymous" and password
"user", and then issues a PORT command to download the virus.

====================
PS: USE THESE SET OF INSTRUCTIONS AT YOUR OWN RISK!!!! By EXECUTING THE
DOWNLOADED FILE YOU WILL INFECT YOUR SYSTEM.

In case you are running any AV with real-time protection features, it
should immediately detect the virus!!!

cheers,
-- 
Shashank Rai
------------
Network and Information Security Team,
Emirates Telecommunication Corporation,
Abu Dhabi, U.A.E.
Ph: +971-2-6182523   Office
    +971-50-6670648  Cell
GPG key:
http://pgp.cns.ualberta.ca:11371/pks/lookup?op=vindex&search=0x01B79474026E36F5