Analysis by: Karl Dominguez

 THREAT SUBTYPE:

Premium Service Abuser, Click Fraud

 PLATFORM:

Symbian S60

 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 unknowingly downloaded by a user while visiting malicious websites.

  TECHNICAL DETAILS

File Size: 97, 605 bytes
File Type: SIS
Memory Resident: No
Initial Samples Received Date: 26 Jan 2011

Arrival Details

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

Other Details

This Trojan does the following:

  • Capable of sending SMS messages to the contacts of the affected phone. The sent messages contains any of the following links:
    • {BLOCKED}er.cn
    • {BLOCKED}d.com
    • {BLOCKED}ap.cn

    As of this writing, the said sites are inaccessible.

  SOLUTION

Minimum Scan Engine: 8.900

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

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