TSPY_AGENT.FRI

October 08, 2012
 Analysis by: Erika Bianca Mendoza
 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This spyware also has rootkit capabilities, which enables it to hide its processes and files from the user.

  TECHNICAL DETAILS

File Size:

15360 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

02 Mar 2011

Installation

This spyware drops the following files:

  • %System%\drivers\{8-randomchars}.sys

(Note: %System% is the Windows system folder, which is usually C:\Windows\System on Windows 98 and ME, C:\WINNT\System32 on Windows NT and 2000, or C:\Windows\System32 on Windows XP and Server 2003.)

Autostart Technique

This spyware registers its dropped component as a system service to ensure its automatic execution at every system startup. It does this by creating the following registry keys:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\{8-randomchars}

Rootkit Capabilities

This spyware also has rootkit capabilities, which enables it to hide its processes and files from the user.

Download Routine

This spyware accesses the following websites to download files:

  • http://{BLOCKED}.{BLOCKED}.118.250/member.php?id=jatebxwm

Other Details

This spyware does the following:

  • It attempts to access the following non-malicious websites:
    • http://en.wikipedia.org/wiki/Special:Random
    • http://en.wikipedia.org/wiki/Yugoslav_Army_(disambiguation)
    • http://en.wikipedia.org/wiki/Yugoslav_People%27s_Army
    • http://en.wikipedia.org/wiki/Amphibious_landing
    • http://en.wikipedia.org/wiki/Rowing_boat
    • http://en.wikipedia.org/wiki/Litter_(vehicle)
    • http://en.wikipedia.org/wiki/Human-powered_aircraft
    • http://en.wikipedia.org/wiki/Southampton_University

  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

Identify and delete files detected as TSPY_AGENT.FRI using the Recovery Console

[ Learn More ]

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. Before you could do this, you must restart in Safe Mode. For instructions on how to do this, you may refer to this page If the preceding step requires you to restart in safe mode, you may proceed to edit the system registry.

  • In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\
    • {8-randomchars}

Step 4

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