Remove Infostealer.Kenzero

Posted on: November 30th, 2009


Discovered: November 27, 2009
Updated:

November 28, 2009 1:10:06 PM

Type:

Trojan

Systems Affected:

Windows 98, Windows 95, Windows XP, Windows Me, Windows Vista, Windows NT, Windows Server 2003, Windows 2000

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Technical Details:

The malicious file typically arrives as an installation file for certain computer games.

When the Trojan is executed, it threat takes a screenshot of desktop and saves it as the following:
%Systemdrive%\[RANDOM LETTERS]\[RANDOM LETTERS].bmp

Then the Trojan converts the saved .bmp file to a JPEG file and saves it as the following:
%SystemDrive%\[RANDOM LETTERS]\[RANDOM LETTERS].jpg

Next it sends the screenshot to the following FTP site:
[ftp://]ftp96.heteml.jp/web/img/us[REMOVED]

It connects to the following URLs to obtain global IP address and the host name of the infected machine:

* [http://]cplayer.dreamhosters.com/getho[REMOVED]
* [http://]checkip.dyndns.org[REMOVED]

Then, it displays a form and requests the user to fill it with the following information:

* first name
* family name
* email address
* password
* first name in game
* family name in game
* gender
* birth date
* company name
* telephone number
* zip code
* address

It also steals the following information from the compromised machine:

* computer name
* domain name
* OS type
* time
* clipboard

Then the Trojan sends the stolen information to the following URL:
[http://]p3p.jp/en[REMOVED]/

When the Trojan exits, it displays the following URL with the gathered information using default browser:
[http://]p3p.jp/entry/user/[RANDOM [REMOVED]

Action Steps:
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