BKDR_AGENTT.ZZZ

October 08, 2012
 Analysis by: Roland Marco Dela Paz
 Modified by: Karl Dominguez
 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

It is a command line application that is used by other malware to connect to a remote IP address and open a port. As a result, a malicious user can connect to the affected system and execute arbitrary commands.

This backdoor may be downloaded by other malware/grayware/spyware from remote sites. It may be downloaded by other malware/grayware from remote sites.

It requires its main component to successfully perform its intended routine.

  TECHNICAL DETAILS

File Size:

Varies

File Type:

PE

Memory Resident:

Yes

Initial Samples Received Date:

10 Feb 2011

Arrival Details

This backdoor may be downloaded by other malware/grayware/spyware from remote sites.

It may be downloaded by the following malware/grayware from remote sites:

  • BKDR_YAMIYU.A

It may be downloaded from the following remote sites:

  • http://larry.{BLOCKED}a.com/AWS{random number}.jsp?{random characters}

Other Details

This backdoor requires its main component to successfully perform its intended routine.

NOTES:
It is a command line application that is used by other malware to connect to a remote IP address and open a port. As a result, a malicious user can connect to the affected system and execute arbitrary commands.

  SOLUTION

Minimum Scan Engine:

8.900

SSAPI PATTERN File:

7.828.08

SSAPI PATTERN Date:

10 Feb 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

Remove malware files dropped/downloaded by BKDR_AGENTT.ZZZ

     BKDR_YAMIYU.A 

Step 3

Identify and terminate files detected as BKDR_AGENTT.ZZZ

[ Learn More ]
  1. If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
  2. If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

Step 4

Scan your computer with your Trend Micro product to delete files detected as BKDR_AGENTT.ZZZ. 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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