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TROJ_TALERET.MJM

October 09, 2012
 Analysis by: Karl Dominguez
 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

This Trojan may be dropped by other malware. It arrives as a component bundled with malware/grayware packages.

It may be injected into processes running in memory.

  TECHNICAL DETAILS

File Size:

24,576 bytes

Memory Resident:

Yes

Initial Samples Received Date:

25 Nov 2011

Arrival Details

This Trojan may be dropped by other malware.

It arrives as a component bundled with malware/grayware packages.

Installation

This Trojan may be injected into processes running in memory.

Other System Modifications

This Trojan adds the following registry keys:

HKEY_CURRENT_USER\Software\Microsoft\
SysInternal

It adds the following registry entries:

HKEY_CURRENT_USER\Software\Microsoft\
SysInternal
(default) = {hex values}

Other Details

This Trojan connects to the following possibly malicious URL:

  • http://tw.{BLOCKED}g.yahoo.com/jw!tDHYEqOfHxIzJUO_fpKyMEs-
  • http://tw.{BLOCKED}g.yahoo.com/jw!8PlOrjKfHxI_lhNlDk_FeAU-
  • http://{BLOCKED}ic.wordpress.com/2011/04/01/economic

  SOLUTION

Minimum Scan Engine:

9.200

FIRST VSAPI PATTERN FILE:

8.600.10

FIRST VSAPI PATTERN DATE:

25 Nov 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

Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_TALERET.MJM. 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.

Step 3

Delete this registry key

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

 
  • In HKEY_CURRENT_USER\Software\Microsoft
    • SysInternal


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