ADW_TCENT

October 08, 2012
 Analysis by: Christopher Daniel So
 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 OVERALL RISK RATING:
 REPORTED INFECTION:
 SYSTEM IMPACT RATING:
 INFORMATION EXPOSURE:

  • Threat Type: Adware

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

This adware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It displays pop-up advertisements.

  TECHNICAL DETAILS

File Size:

Varies

File Type:

EXE

File Compression:

UPX

Memory Resident:

Yes

Initial Samples Received Date:

08 May 2008

Payload:

Downloads files

Arrival Details

This adware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Adware Routine

This adware connects to the following URLs to download and display ads:

  • http://www.{BLOCKED}xj.net/a/fushi/jiepai/20100308/963.html
  • http://www.{BLOCKED}xj.net/a/shepin/shehuaxiuchang/20100309/2192.html
  • http://code.{BLOCKED}bj.cc:8899/CF.aspx?{random string}
  • http://www.{BLOCKED}yi.cc/show.php?{random string}

It displays pop-up advertisements.

Other Details

This adware does the following:

  • Opens http://www.{BLOCKED}xj.net/ via Internet Explorer

  SOLUTION

Minimum Scan Engine:

8.900

SSAPI PATTERN File:

1.160.02

SSAPI PATTERN Date:

16 Mar 2011

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

Identify and terminate files detected as ADW_TCENT

[ Learn More ]
  1. If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
  2. If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

Step 3

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