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BKDR_GGLOX.A

December 16, 2011
 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 attempts to connect to the Google Talk server using a set of hardcoded credentials for authentication. If the connection is successful, this backdoor can receive commands from a certain Google Talk user that allows him to perform certain commands.

To get a one-glance comprehensive view of the behavior of this Backdoor, refer to the Threat Diagram shown below.

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

  TECHNICAL DETAILS

File Size:

356,352 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

15 Dec 2011

Payload:

Steals information, Terminates processes

Arrival Details

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

NOTES:

This backdoor attempts to connect to the Google Talk server using a set of hard-coded credentials for authentication. In this sample, however, the login credentials were removed. If the connection is successful, this backdoor can receive commands from a certain Google Talk user that allows him to perform the following:

  • Get system information (IP, OS version, etc.)
  • List/terminate processes
  • Perform shell command via cmd.exe
  • Upload/download files

  SOLUTION

Minimum Scan Engine:

9.200

FIRST VSAPI PATTERN FILE:

8.646.08

FIRST VSAPI PATTERN DATE:

16 Dec 2011

VSAPI OPR PATTERN File:

8.647.00

VSAPI OPR PATTERN Date:

16 Dec 2011

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_GGLOX.A

Step 3

Terminate a process file/s detected as BKDR_GGLOX.A

[ 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_GGLOX.A. 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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