Trojan-PSW.Win32.SlyDude

Parent class: TrojWare

Trojans are malicious programs that perform actions which are not authorized by the user: they delete, block, modify or copy data, and they disrupt the performance of computers or computer networks. Unlike viruses and worms, the threats that fall into this category are unable to make copies of themselves or self-replicate. Trojans are classified according to the type of action they perform on an infected computer.

Class: Trojan-PSW

Trojan-PSW programs are designed to steal user account information such as logins and passwords from infected computers. PSW is an acronym of Password Stealing Ware. When launched, a PSW Trojan searches system files which store a range of confidential data or the registry. If such data is found, the Trojan sends it to its “master.” Email, FTP, the web (including data in a request), or other methods may be used to transit the stolen data. Some such Trojans also steal registration information for certain software programs.

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Platform: Win32

Win32 is an API on Windows NT-based operating systems (Windows XP, Windows 7, etc.) that supports execution of 32-bit applications. One of the most widespread programming platforms in the world.

Description

Technical Details

This Trojan is designed to steal user passwords. It is a Windows PE EXE file. It is 10,240 bytes in size. It is not packed in any way. It is written in Visual C++.

Installation

Once launched, the Trojan copies itself to the Windows system directory as "winsys.dll". The Trojan also creates the following system registry key: :

[HKLMSoftwareSlySoftSly]

The Trojan also adds the following parameter to the system registry:

This ensures that the Trojan will be launched each time Windows is booted on the victim machine.

The Trojan also creates a unique identifier, “slyishere”, to flag its presence in the system:

slyishere

Payload

This Trojan tracks the user's actions on the victim machine. It tracks keys pressed by the user.

It connects to a mail server to send the data collected from the victim machine to the following address:

****@intertainment.co.za

Removal instructions

If your computer does not have an up-to-date antivirus, or does not have an antivirus solution at all, follow the instructions below to delete the malicious program:

1. Use Task Manager to terminate the Trojan process.
2. Delete the following file:

   %System%/winsys.dll

3. Delete the key and value created by the Trojan in the system registry:

   [HKLMSoftwareSlySoft]

   [HKLMSoftwareMicrosoftWindowsCurrentVersionRun]
   "winsys"

4. Update your antivirus databases and perform a full scan of the computer (download a trial version of Kaspersky Anti-Virus).

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