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Threat Encyclopedia

PHP_CREW.ASD

ANALYSIS BY

Christopher Daniel So


PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type:Trojan

  • Destructiveness:No

  • Encrypted: Yes

  • In the wild: Yes

OVERVIEW


This is the Trend Micro detection for a PHP script that runs in a web server.

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

TECHNICAL DETAILS

File Size:

1,757 bytes

File Type:

Other

Memory Resident:

Yes

Initial Samples Received Date:

04 Nov 2011

Arrival Details

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

NOTES:

This is the Trend Micro detection for a PHP script that runs in a web server. It does the following:

If the parameter lol is specified, it returns the following to the client.

{operating system name and version}nob0dyCr3w

If the parameter osc is specified but lol is not, it executes the base64-encoded command line specified in the parameter osc and returns to the client the result of the execution.

If none of the two parameters are specified, it returns a webpage allowing the client to create or upload a file to the infected server.

SOLUTION

Minimum Scan Engine:

9.200

FIRST VSAPI PATTERN FILE:

8.546.02

FIRST VSAPI PATTERN DATE:

04 Nov 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 to delete files detected as PHP_CREW.ASD. 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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