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PHP_DOOR.AG

May 28, 2014
 Analysis by: Mark Joseph Manahan
 ALIASES:

Troj/PHPDoor-I (AVG) ,PHP/Rst.CO!tr.bdr (Fprot) ,Backdoor.PHP.Agent.uj (Microsoft)

 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:
 INFORMATION EXPOSURE:

  • Threat Type: Backdoor

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW


This backdoor may be dropped by other malware. It executes when a user accesses certain websites where it is hosted.

  TECHNICAL DETAILS

File Size:

3,583 bytes

File Type:

Script

Memory Resident:

Yes

Initial Samples Received Date:

13 Jul 2013

Arrival Details

This backdoor may be dropped by other malware.

It executes when a user accesses certain websites where it is hosted.

Other Details

This backdoor connects to the following possibly malicious URL:

  • http://{BLOCKED}lampung.us/irc/readme.txt
  • http://{BLOCKED}lampung.us/irc/dQBNC.tar.gz
  • http://{BLOCKED}lampung.us/irc/allnet.tar.gz
  • http://{BLOCKED}lampung.us/irc/proxy.tgz
  • http://{BLOCKED}lampung.us/irc/404.txt

  SOLUTION

Minimum Scan Engine:

9.700

FIRST VSAPI PATTERN FILE:

10.152.03

FIRST VSAPI PATTERN DATE:

13 Jul 2013

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

Close all opened browser windows

Step 3

Scan your computer with your Trend Micro product to delete files detected as PHP_DOOR.AG. 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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