Analysis by: Homer Pacag
ALIASES:

Trojan:Win32/Dynamer!ac (Microsoft); RDN/Generic Downloader.x!ki (McAfee); Trojan.Pramro (Symantec); Mal/Generic-L (Sophos); Trojan.Win32.Generic!BT (Sunbelt); Trojan horse Downloader.Generic13.CEXV (AVG)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

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.

  TECHNICAL DETAILS

File Size: 16,896 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 05 Dec 2014

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.

Installation

This Trojan adds the following mutexes to ensure that only one of its copies runs at any one time:

  • xx19867861872901047sdf

Other Details

This Trojan connects to the following possibly malicious URL:

  • {BLOCKED}213.220
  • {BLOCKED}.197.0
  • {BLOCKED}4266.ip-142-4-213.net

  SOLUTION

Minimum Scan Engine: 9.700
FIRST VSAPI PATTERN FILE: 11.334.08
FIRST VSAPI PATTERN DATE: 03 Jun 2014
VSAPI OPR PATTERN File: 11.335.00
VSAPI OPR PATTERN Date: 03 Jun 2014

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_PRAMRO.JEO. 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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