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TROJ_POWLOD.GGB

March 31, 2017
 ALIASES:

Mal/PSDL-A (Sophos Lite)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware, Downloaded from the Internet

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

However, as of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size:

1,761 bytes

File Type:

Script

Memory Resident:

No

Initial Samples Received Date:

29 Mar 2017

Payload:

Connects to URLs/IPs

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Other Details

This Trojan does the following:

  • Downloads a script from the following URL and executes it:
    http://{BLOCKED}.{BLOCKED}.177.253:8080/index.asp
  • It executes the following powershell commands:
    powershell.exe -NoP -sta -NonI -W Hidden -Enc {Base64 Encoded String}

However, as of this writing, the said sites are inaccessible.

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

13.306.05

FIRST VSAPI PATTERN DATE:

29 Mar 2017

VSAPI OPR PATTERN File:

13.307.00

VSAPI OPR PATTERN Date:

30 Mar 2017

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

Scan your computer with your Trend Micro product to delete files detected as TROJ_POWLOD.GGB. 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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