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JS_INJECT.WPD

May 23, 2013
 Analysis by: Nikko Tamana
 ALIASES:

JS/Kryptik.AKJ trojan (NOD32)

 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:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW


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

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.

It does not have any information-stealing capability.

It inserts an IFRAME tag that redirects users to certain URLs.

  TECHNICAL DETAILS

File Size:

5,276 bytes

File Type:

HTML, HTM

Memory Resident:

Yes

Initial Samples Received Date:

20 May 2013

Payload:

Connects to URLs/IPs

Arrival Details

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

Propagation

This Trojan does not have any propagation routine.

Backdoor Routine

This Trojan does not have any backdoor routine.

Dropping Routine

This Trojan does not drop any other file.

Download Routine

This Trojan does not have any downloading capability.

Information Theft

This Trojan does not have any information-stealing capability.

Other Details

This Trojan inserts an IFRAME tag that redirects users to the following URLs:

  • http://{BLOCKED}ta.ru/count21.php

NOTES:

It redirects the affected users to advertisement websites.

It does not have rootkit capabilities.

It does not exploit any vulnerability.

  SOLUTION

Minimum Scan Engine:

9.300

FIRST VSAPI PATTERN FILE:

9.934.03

FIRST VSAPI PATTERN DATE:

22 May 2013

VSAPI OPR PATTERN File:

9.935.00

VSAPI OPR PATTERN Date:

23 May 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 JS_INJECT.WPD. 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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