Packed:W32/Tibs.AB identifies packed files with similar functionality to Email-Worm:W32/Zhelatin. Tibs.AB files are usually downloaded by clicking malicious links in heavily spammed e-mail messages
On execution, the malware creates these files:
And then hides them.
A noticeable characteristic for this malware is that it tries to connect to a lot of predefined IP addresses using UDP.
A text file is also dropped which contains a possible lists of clients for the worm's peer-to-peer network. The details for the peer names and access ports are encoded. Example of the text file:
The installed component has rootkit functionality that can enable its process to be hidden from unsuspecting users.
The malware sets these values:
ImagePath = %systemdir%\windev-[random_numbers].sys
Note: Usually %systemdir% is C:\Windows\system32