Analysis by: Jimelle Monteser
ALIASES:

RiskTool.Win32.BitCoinMiner.lrc (Kaspersky), Riskware.BitcoinMiner.11207 (VBA32), Trojan.Win32.Sefnit, Trojan.Win32.Sefnit (Ikarus), W32/Xor-encoded.A (Panda)

 PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Trojan may be dropped by other malware.

It requires its main component to successfully perform its intended routine.

  TECHNICAL DETAILS

File Size: 1,2247,43 bytes
File Type: Other
Memory Resident: No
Initial Samples Received Date: 19 Mar 2014

Arrival Details

This Trojan may be dropped by other malware.

Other Details

This Trojan requires its main component to successfully perform its intended routine.

NOTES:

This Trojan is an encrypted .EXE file.

  SOLUTION

Minimum Scan Engine: 9.700
FIRST VSAPI PATTERN FILE: 10.732.04
FIRST VSAPI PATTERN DATE: 17 Apr 2014
VSAPI OPR PATTERN File: 10.733.00
VSAPI OPR PATTERN Date: 18 Apr 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_COINMINE.ENC. 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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