Analysis by: Donald Adrian Castillo
ALIASES:

Trojan-Downloader.Win32.Agent.hfbu (Kaspersky), Trojan-FFCN!DCF67751275D (McAfee)

 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

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: 102, 821 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 24 Oct 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.

Download Routine

This Trojan accesses the following websites to download files:

  • http://{BLOCKED}0.{BLOCKED}8.151.213/nicc/index.asp?M00=0
  • http://{BLOCKED}0.{BLOCKED}8.151.213/nicc/index.asp?M00=1
  • http://{BLOCKED}0.{BLOCKED}8.151.213/nicc/index.asp?M05=4
  • http://{BLOCKED}0.{BLOCKED}8.151.213/nicc/index.asp?M05=3

Other Details

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

  SOLUTION

Minimum Scan Engine: 9.750
FIRST VSAPI PATTERN FILE: 11.232.02
FIRST VSAPI PATTERN DATE: 24 Oct 2014
VSAPI OPR PATTERN File: 11.233.00
VSAPI OPR PATTERN Date: 25 Oct 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_TALERET.USCV. 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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