Analysis by: Karl Dominguez

 PLATFORM:

Windows 2000, XP, Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

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

It accesses websites to download files. This action allows this malware to possibly add other malware on the affected computer. As of this writing, the said sites are inaccessible.

It installs a fake antivirus/antispyware software.

  TECHNICAL DETAILS

File Size: 15,102 bytes
File Type: HTML, HTM
Memory Resident: No
Initial Samples Received Date: 21 Nov 2010
Payload: Downloads files

Arrival Details

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

Download Routine

This Trojan accesses websites to download the following files:

  • http://ww{BLOCKED}dix.cn/installer.1.exe
  • http://{BLOCKED}rman.com

As of this writing, the said sites are inaccessible.

Rogue Antivirus Routine

This Trojan displays the following fake alerts:

  • Warning!!!
    Your computer contains various signs of viruses and malware programs presence.
    Your system requires immediate anti viruses check!
    System Security will perform a quick and free scanning of your PC for viruses and malicious programs.
  • Your computer remains infected by viruses!
    They can cause data loss and file damages and need to be cured as soon as possible.
    Return to System Security and download it secure to your PC
  • Please install antivirus software.
  • Internet Explorer Warning - visiting this web site may harm your computer!
    Most likely causes:
    The website contains exploits that can launch a malicious code on your computer
    Suspicious network activity detected
    There might be an active spyware running on your computer
  • Check your computer for viruses and malware.
    Purchase for secure Internet surfing (Recommended)
    More information

It installs a fake antivirus/antispyware software.

  SOLUTION

Minimum Scan Engine: 8.900
FIRST VSAPI PATTERN FILE: 7.636.09
FIRST VSAPI PATTERN DATE: 21 Nov 2010

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 HTML_FAKEALE.IM. 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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