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TROJ_SCAR.EQ

October 08, 2012
 Analysis by: Sabrina Lei Sioting
 PLATFORM:

Windows 2000, XP, Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

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

  TECHNICAL DETAILS

File Size:

137,552 bytes

File Type:

PE

Memory Resident:

Yes

Initial Samples Received Date:

10 Sep 2010

Payload:

Drops files

Arrival Details

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

Installation

This Trojan drops the following copies of itself into the affected system:

  • %system%\{malware name}.exe

It drops the following files:

  • %User Startup%\{malware name}.lnk.lnk
  • %system%\{malware name}.dll - detected as TROJ_AGENT.AVHX

(Note: %User Startup% is the current user's Startup folder, which is usually C:\Windows\Profiles\{user name}\Start Menu\Programs\Startup on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Start Menu\Programs\Startup on Windows NT, and C:\Documents and Settings\{User name}\Start Menu\Programs\Startup.)

  SOLUTION

Minimum Scan Engine:

8.900

VSAPI PATTERN File:

7.455.00

VSAPI PATTERN Date:

10 Sep 2010

VSAPI PATTERN Date:

9/10/2010 12:00:00 AM

FIRST VSAPI PATTERN FILE:

6.628.04

FIRST VSAPI PATTERN DATE:

15 Nov 2009

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

Remove malware files dropped/downloaded by TROJ_SCAR.EQ

     TROJ_AGENT.AVHX

Step 3

Search and delete this file

[ Learn More ]
There may be some component 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. %User Startup%\{malware name}.lnk.lnk

Step 4

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