TROJ_FAKEDOK.B

July 31, 2015
 Analysis by: Jon Dexter Laurin
 ALIASES:

Trojan:Win32/MultiInjector.C!rfn (Microsoft); Backdoor.Trojan (Norton); Trojan.Agent (Ikarus); Found Luhe.Fiha.A (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:

31,544 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

28 Jul 2015

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 connects to the following possibly malicious URL:

  • http://{BLOCKED}.{BLOCKED}.46.242/web/index.jsp
  • http://{BLOCKED}.{BLOCKED}.240.2:443

NOTES:
It opens Microsoft Word to deceive users into thinking they have opened a legitimate document file.

  SOLUTION

Minimum Scan Engine:

9.750

FIRST VSAPI PATTERN FILE:

11.818.04

FIRST VSAPI PATTERN DATE:

28 Jul 2015

VSAPI OPR PATTERN File:

11.819.00

VSAPI OPR PATTERN Date:

29 Jul 2015

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_FAKEDOK.B. 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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