Re: Bad Antivirus

[iamherevivek () gmail com]

Hello,

You can compare the actual (safe) exe with the infected ones with something like windiff.

I would recommend removing the infected exe, if u have a backup, and put the infected in a sandbox and run tests.

If I was in ur situation, I would track each action performed by the infected exe by tracking network activity, 
processes called and so on.

Please PM me, if you need any personalized guidance.

Deadbrain.
I though I would change the world, but they wouldn't give me the source code.
So I ended up hacking it!
Sent from BlackBerry® on Airtel

-----Original Message-----
From: sec.melis () gmail com
Sender: listbounce () securityfocus com
Date: Tue, 29 Jan 2013 15:30:55 
To: <security-basics () securityfocus com>
Reply-To: drmarkabaiter () gmail com
Subject: Bad Antivirus

Dear folks,

I have 3 W2K3 servers, each are running same software binary exe files. One month ago, they infected with some rootkits 
and viruses which later on I know from antivirus detection this malware called sality, ipz, etc.
After installing a new antivirus and revealed the malware, some of my software seems not running as expected. At the 
moment, I suspect that the malware still there because the AV may not capable to clean them all. I tried using 3 or 4 
most popular AV, but all were claimed the servers are clean while my software couldn't run smoothly. In fact, some of 
exe files has been changed in size while I am not sure whether this changed made by viruses or 'bad' AV I just 
installed.
If I try to proof that my exe files has been changed by this 'bad' AV, does anyone know how to proof this things ? By 
reversing this exe files, is it possible to get which part of the files has changed ?

Thank's

Ibha ID
Sent from my BlackBerry® smartphone from Sinyal Bagus XL, Nyambung Teruuusss...!

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