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JS_MALAGENT.JK

October 09, 2012
 Analysis by: Michael Cabel
 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 Trojan may be hosted on a website and run when a user accesses the said website.

  TECHNICAL DETAILS

File Size:

343,283 bytes

File Type:

Script

Initial Samples Received Date:

05 Mar 2012

Arrival Details

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

NOTES:

It is an encrypted JavaScript that attempts to connect to certain web sites. However, this requires other components to successfully performs its malicious routines.

  SOLUTION

Minimum Scan Engine:

9.200

FIRST VSAPI PATTERN FILE:

8.818.03

FIRST VSAPI PATTERN DATE:

05 Mar 2012

VSAPI OPR PATTERN File:

8.819.00

VSAPI OPR PATTERN Date:

06 Mar 2012

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_MALAGENT.JK. 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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