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TROJ_AGENT.EXA

October 09, 2012
 Analysis by: Michael Cabel
 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware


This Trojan sends information to a certain website via HTTP post.

It also downloads a file.

This Trojan may be dropped by other malware.

  TECHNICAL DETAILS

File Size:

20,496,384 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

06 Sep 2012

Payload:

Steals information, Downloads files

Arrival Details

This Trojan may be dropped by the following malware:

  • TROJ_SISRON.EXA

NOTES:

This Trojan sends the following information to http://{BLOCKED}jilu.4pu.com/rc/news1.asp via HTTP post:

  • Host name
  • IP Address
  • OS Build and Version
  • Proxy

It also attempts to download a file from http://{BLOCKED}c.dns04.com/a.asp. It then saves the downloaded file as %User Temp%\temps.ini.

  SOLUTION

Minimum Scan Engine:

9.200

FIRST VSAPI PATTERN FILE:

9.372.04

FIRST VSAPI PATTERN DATE:

06 Sep 2012

VSAPI OPR PATTERN File:

9.373.00

VSAPI OPR PATTERN Date:

06 Sep 2012

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_AGENT.EXA

    TROJ_SISRON.EXA

Step 3

Terminate a malware/grayware process

[ Learn More ]

*Note: If the detected process is not displayed in theWindows Task Manager, continue doing the next steps.

    %Windows%\Tasks\conime.exe

Step 4

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 Temp%\temps.ini

Step 5

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