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BKDR_FARFLI.XUYS

June 06, 2014
 ALIASES:

Backdoor:Win32/Farfli.AJ (Microsoft); Generic BackDoor.adu (McAfee); HEUR:Trojan.Win32.Generic (Kaspersky); Trojan-GameThief.Win32.Magania.hifx (v) (Sunbelt); Trojan horse BackDoor.Generic_r.BLQ (AVG)

 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:

  • Threat Type: Backdoor

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This backdoor 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:

135,302 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

06 Jun 2014

Arrival Details

This backdoor 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 backdoor drops the following copies of itself into the affected system:

  • %User Profile%\Æô¶¯\Pc.exe
  • %System Root%\Users\Administrator\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Pc.exe

(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.. %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)

Dropping Routine

This backdoor drops the following files:

  • tøÿ
  • %Common Startup%\Pc.exe

(Note: %Common Startup% is the system's shared Startup folder, which is usually C:\Documents and Settings\All Users\Start Menu\Programs\Startup on Windows 2000, XP, and Server 2003.)

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine:

9.700

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

Search and delete these components

[ Learn More ]
There may be some components that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.
  • tøÿ
  • %Common Startup%\Pc.exe

Step 3

Scan your computer with your Trend Micro product to delete files detected as BKDR_FARFLI.XUYS. 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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