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PHP_ZENDACK.ER

June 19, 2013
 Analysis by: Rika Joi Gregorio
 PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit), Linux, UNIX, Mac OS

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

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW


This spyware may be hosted on a website and run when a user accesses the said website.

It does not have any propagation routine.

It does not have any backdoor routine.

It does not drop any other file.

It does not have any downloading capability.

  TECHNICAL DETAILS

File Size:

16,449 bytes

File Type:

Script

Initial Samples Received Date:

10 Jun 2013

Payload:

Steals information

Arrival Details

This spyware may be hosted on a website and run when a user accesses the said website.

Propagation

This spyware does not have any propagation routine.

Backdoor Routine

This spyware does not have any backdoor routine.

Dropping Routine

This spyware does not drop any other file.

Download Routine

This spyware does not have any downloading capability.

Information Theft

This spyware gathers the following data:

  • IP Addreses
  • User Agent
  • Site Visited

NOTES:

This spyware checks if the user who visited the compromised site is a web crawler. A web crawler is a program that used to create entries for search engines by visiting sites to gather information. If the user is not a web crawler, this spyware will retrieve data from another web server and will make a request as follows:

  • http://{random generated}.com/in.php?i={IP Address}&b={User Agent}&h={Visited Site}

This malware runs on PHP Web Server.

It does not have rootkit capabilities.

It does not exploit any vulnerability.

  SOLUTION

Minimum Scan Engine:

9.300

FIRST VSAPI PATTERN FILE:

9.972.02

FIRST VSAPI PATTERN DATE:

10 Jun 2013

VSAPI OPR PATTERN File:

9.973.00

VSAPI OPR PATTERN Date:

11 Jun 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

Scan your computer with your Trend Micro product to delete files detected as PHP_ZENDACK.ER. 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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