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JS_KINXIA.A

October 09, 2012
 Analysis by: Lord Alfred Remorin
 ALIASES:

Trojan.Malscript (Symantec), JS/Iframe.FJ trojan (Nod32)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet

This Trojan may be unknowingly downloaded by a user while visiting malicious websites. It may be hosted on a website and run when a user accesses the said website.

  TECHNICAL DETAILS

File Size:

6,412 bytes

File Type:

JS

Memory Resident:

Yes

Initial Samples Received Date:

14 Sep 2012

Arrival Details

This Trojan may be unknowingly downloaded by a user while visiting malicious websites.

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

NOTES:

This Trojan inserts an iframe tag that redirects users to malicious URLs.

It downloads component files usually JAVA and SWF files to find a vulnerable software on the system.

Once a vulnerability has been found, it downloads and executes its main payload (usually an .EXE file) on the affected system.

  SOLUTION

Minimum Scan Engine:

9.200

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

Close all opened browser windows

Step 3

Scan your computer with your Trend Micro product to delete files detected as JS_KINXIA.A. 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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