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PHP_WEBSHELL.XVE

September 27, 2016
 Analysis by: Cris Nowell Pantanilla
 ALIASES:

PHP.WebShell (Ikarus), PHP/Agent.GK (ESET-NOD32)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware

This Trojan may arrive bundled with malware packages as a malware component. It may be hosted on a website and run when a user accesses the said website.

It is a component of other malware.

  TECHNICAL DETAILS

File Size:

267,224 bytes

File Type:

Script

Memory Resident:

No

Initial Samples Received Date:

28 Apr 2016

Payload:

Compromises system security

Arrival Details

This Trojan may arrive bundled with malware packages as a malware component.

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

Installation

This Trojan is a component of other malware.

Other Details

This Trojan does the following:

  • This is the Trend Micro detection for a PHP Web shell. This allows attackers a remote access to functions on a compromised server. It is capable of remote administration and executing command on a compromised server.

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

12.494.03

FIRST VSAPI PATTERN DATE:

28 Apr 2016

VSAPI OPR PATTERN File:

12.495.00

VSAPI OPR PATTERN Date:

29 Apr 2016

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_WEBSHELL.XVE. 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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