Analysis by: Michael Cabel
 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

Infection Channel: Dropped by other malware, Downloaded from the Internet

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.

It does not have any propagation routine.

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

It does not drop any other file.

It does not have any downloading capability.

  TECHNICAL DETAILS

File Size: 53,682 bytes
File Type: EXE
Memory Resident: Yes
Initial Samples Received Date: 08 May 2012
Payload: Compromises system security

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.

Propagation

This backdoor does not have any propagation routine.

Backdoor Routine

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

  • {BLOCKED}.{BLOCKED}.7.30:8080

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

Dropping Routine

This backdoor does not drop any other file.

Download Routine

This backdoor does not have any downloading capability.

NOTES:

This backdoor have the following capabilities over the affected system:

  • Capture screen, audio, and webcam
  • Execute binary instructions
  • Key logger
  • List active ports
  • Manage open Windows
  • Manage passwords
  • Manage registry, processes, services, devices, and installed applications
  • Perform multiple simultaneous transfers
  • Perform remote shell
  • Relay server
  • Searh files
  • Share servers
  • Update, restart, terminates itself

It does not have rootkit capabilities.

It does not exploit any vulnerability.

  SOLUTION

Minimum Scan Engine: 9.200
FIRST VSAPI PATTERN FILE: 8.982.01
FIRST VSAPI PATTERN DATE: 08 May 2012
VSAPI OPR PATTERN File: 8.983.00
VSAPI OPR PATTERN Date: 09 May 2012

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

Scan your computer with your Trend Micro product and note files detected as BKDR_POISON.AJD

Step 3

Terminate a process file/s detected as BKDR_POISON.AJD

[ Learn More ]

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

Step 4

Scan your computer with your Trend Micro product to delete files detected as BKDR_POISON.AJD. 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.