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JS_GAREMON.A

October 09, 2012
 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


This is the Trend Micro detection for malicious HTML files that contain a malicious JavaScript. Once a user opens the malicious attachment, this malware connects to a certain website to download possibly malicious files on the affected system.

This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.

  TECHNICAL DETAILS

File Size:

Varies

File Type:

JS

Memory Resident:

No

Initial Samples Received Date:

04 Feb 2012

Payload:

Downloads files

Arrival Details

This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.

NOTES:

This is the Trend Micro detection for malicious HTML files that contain a malicious JavaScript. Once a user opens the malicious attachment, this malware connects to the following site to download possibly malicious files on the affected system:

  • http://{BLOCKED}mystage.ru:8801/html/yveveqduclirb1.php

As of this writing, however, the said site is inaccessible.

  SOLUTION

Minimum Scan Engine:

9.200

FIRST VSAPI PATTERN FILE:

8.752.09

FIRST VSAPI PATTERN DATE:

04 Feb 2012

VSAPI OPR PATTERN File:

8.753.00

VSAPI OPR PATTERN Date:

04 Feb 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_GAREMON.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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