BAT_POWELOAD.A

This Trojan may be dropped by other malware.

It uses Windows Task Scheduler to create a scheduled task that executes the dropped copy.

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 may be dropped by the following malware:

• TROJ_POWELOAD.A

Installation

This Trojan drops the following files:

• %User Temp%\MSV1144244.bat - detected as BAT_POWELOAD.A

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp 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 uses Windows Task Scheduler to create a scheduled task that executes the dropped copy.

Download Routine

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

• https://{blocked}.{blocked}.31.182:443//sdsd/{random value}

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 runs a powershell command to execute its routines.
• It creates a Scheduled Task named "LoadImage1" to automatically execute the dropped file every 15 minutes:
  • %System32%\Tasks\LoadImage1