Trojan-PSW.Win32.Coced

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 one of a family of Trojans which steals user passwords. It is designed to steal confidential data. It is a Windows PE EXE file. The file is 9,728 bytes in size. It is written in Visual C++.

Payload

The Trojan changes the values of the following system registry keys:

The Trojan uses WnetEnumCachedPasswords to harvest information about modem connections used by the system to access the Internet and passwords for these connections.

The Trojan sends harvested data to the remote malicious user's email address:

lenin*****@usa.net

The Trojan uses mail.computer.com to send outgoing messages

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 original Trojan file (the location will depend on how the program originally penetrated the victim machine).
3. Delete the following system registry key parameters:

   [HKCUSoftwareMirabilisICQAgentAppsICQ]
   "Enable" = "yes"
   "Path" = ""
   "Startup" = ""
   "Parameters" = ""

   [HKCUSoftwareMirabilisICQAgent]
   "Launch Warning" = "No"

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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