VBS_POWRUN.KG

November 08, 2014
 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware

This Trojan may be dropped by other malware.

It is used to load and execute a file.

  TECHNICAL DETAILS

File Size:

622 bytes

File Type:

VBS

Initial Samples Received Date:

07 Nov 2014

Payload:

Executes files

Arrival Details

This Trojan may be dropped by the following malware:

  • W97M_DLOADER.AI

Other Details

This Trojan requires the following additional components to properly run:

  • %Temp%\adobeacd-update.ps1 - detected as TROJ_POWDLOD.GN

(Note: %Temp% is the Windows temporary folder, where it usually is C:\Windows\Temp on all Windows operating system versions.)

It is used to load and execute the following file:

  • %Temp%\adobeacd-update.ps1 - detected as TROJ_POWDLOD.GN
    This is executed using the following command:
    powershell.exe -noexit -ExecutionPolicy -bypass -noprofile -file c:\windows\temp\adobeacd-update.psl,0,true

(Note: %Temp% is the Windows temporary folder, where it usually is C:\Windows\Temp on all Windows operating system versions.)

  SOLUTION

Minimum Scan Engine:

9.700

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Remove the malware/grayware file that dropped/downloaded VBS_POWRUN.KG. (Note: Please skip this step if the threat(s) listed below have already been removed.)

    • W97M_DLOADER.AI

Step 3

Search and delete this file

[ Learn More ]
There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.
  • %Temp%\adobeacd-update.ps1

Step 4

Scan your computer with your Trend Micro product to delete files detected as VBS_POWRUN.KG. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.


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