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HTML_EXPLOIT.MJTD

June 18, 2015
 Analysis by: Jennifer Gumban
 PLATFORM:

Windows

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

  • Threat Type: Others

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

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

It takes advantage of an unknown vulnerability in a certain software to allow a remote malicious user or malware to download files on the affected machine.

  TECHNICAL DETAILS

File Size:

4,839 bytes

File Type:

Script, HTML, HTM

Initial Samples Received Date:

09 Jun 2015

Arrival Details

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

Download Routine

This malware saves the files it downloads using the following names:

  • %Application Data%\EDWEDRFEDDF-3.exe

(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

Other Details

This malware connects to the following possibly malicious URL:

  • http://{BLOCKED}hjrlsuhgfrslihkj.co.vu/SDDS2/d.php?d=EDWEDRFEDDF-3.exe

It takes advantage of an unknown vulnerability in a certain software to allow a remote malicious user or malware to download files on the affected machine.

  SOLUTION

Minimum Scan Engine:

9.750

FIRST VSAPI PATTERN FILE:

11.720.02

FIRST VSAPI PATTERN DATE:

09 Jun 2015

VSAPI OPR PATTERN File:

11.721.00

VSAPI OPR PATTERN Date:

10 Jun 2015

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

Search and delete this file

[ Learn More ]
There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.  
  • %Application Data%\EDWEDRFEDDF-3.exe

Step 4

Scan your computer with your Trend Micro product to delete files detected as HTML_EXPLOIT.MJTD. 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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