Analysis by: Erika Bianca Mendoza
 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Backdoor

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

This backdoor may be dropped by other malware. It may be unknowingly downloaded by a user while visiting malicious websites.

It runs certain commands that it receives remotely from a malicious user. Doing this puts the affected computer and information found on the computer at greater risk.

  TECHNICAL DETAILS

File Size: 33,280 bytes
File Type: EXE
Memory Resident: Yes
Initial Samples Received Date: 23 May 2011

Arrival Details

This backdoor may be dropped by other malware.

It may be unknowingly downloaded by a user while visiting malicious websites.

Backdoor Routine

This backdoor executes the following command(s) from a remote malicious user:

  • WINCMD
  • DIR
  • TASKKILL
  • CD
  • GETFILE
  • TASKLIST
  • EXIT
  • DEL
  • SHUTDOWN
  • SLEEP
  • RUN
  • DISK
  • PUTFILE
  • GETCMD

It connects to the following URL(s) to send and receive commands from a remote malicious user:

  • {BLOCKED}a.ikwb.com

  SOLUTION

Minimum Scan Engine: 8.900

Step 1

For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

Step 2

Terminate a process file/s detected as BKDR_FIREF.AD

[ Learn More ]

*Note: If the detected file/s is/are not displayed in theWindows Task Manager, continue doing the next steps.

Step 3

Scan your computer with your Trend Micro product to delete files detected as BKDR_FIREF.AD. 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.


Did this description help? Tell us how we did.