TSPY_ONLINEG.CTM

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TypeSpyware

In the wild: No

Destructive: No

Language: English

Systems affected: Windows 98, ME, NT, 2000, XP, Server 2003

Encrypted: No

Overall risk rating:

Low

Reported detections:

Low

System  impact:

High

Information exposure:

High
 

Description:

This spyware may arrive as a downloaded file from the Internet, or as a drop file of other malware.

Upon execution, it drops a copy of itself as KSVSVC.EXE in the Windows folder. It also drops a .DLL component KSVSVC.DLL also detected as TSPY_ONLINEG.CTM in the Windows system folder. This .DLL is injected to several processes to ensure that it stays resident in the memory. Afterwards the executable file terminates.

It monitors the Internet Explorer activities of an affected system. It steals account-related information, such as user names and passwords, used in certain online games. It performs this routine by logging user keystrokes and saving the gathered information in a text file. It then sends the text file to a predetermined email address using its own Simple Mail Transfer Protocol (SMTP) engine.



TECHNICAL DETAILS



Initial samples received on:  May 27, 2007

File type: PE

Memory resident: No  

File size: 20,992 Bytes

Details:

This spyware may arrive as a downloaded file from the Internet, or as a drop file of other malware.

Upon execution, it drops a copy of itself as KSVSVC.EXE in the Windows folder. It also drops a .DLL component KSVSVC.DLL also detected as TSPY_ONLINEG.CTM in the Windows system folder. This .DLL is injected to several processes to ensure that it stays resident in the memory. Afterwards the executable file terminates.

To ensure its automatic execution at every system startup, this spyware creates the following registry entry:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\
CurrentVersion\Run
KSVSvc.exe = "%Windows%\KSVSvc.exe"

(Note: %Windows% is the Windows folder, which is usually C:\Windows or C:\WINNT.)

It monitors the Internet Explorer activities of an affected system. It steals account-related information, such as user names and passwords, used in certain online games. It performs this routine by logging user keystrokes and saving the gathered information in a text file. It then sends the text file to a predetermined email address using its own Simple Mail Transfer Protocol (SMTP) engine.

It runs on Windows 98, ME, NT, 2000, XP, and Server 2003.




SOLUTION


Minimum scan engine version needed: 8.000

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Virus pattern version needed : 4.493.00

Pattern release date:  May 27, 2007


Important note: The "Minimum scan engine" refers to the earliest Trend Micro scan engine version guaranteed to detect this threat. However, Trend Micro strongly recommends that you update to the latest version in order to get comprehensive protection. Download the latest scan engine here.

Solution:

Important Windows ME/XP Cleaning Instructions

Users running Windows ME and XP must disable System Restore to allow full scanning of infected computers.

Users running other Windows versions can proceed with the succeeding solution set(s).

Restarting in Safe Mode

This malware has characteristics that require the computer to be restarted in safe mode. Go to this page for instructions on how to restart your computer in safe mode.

Editing the Registry

This malware modifies the computer's registry. Users affected by this malware may need to modify or delete specific registry keys or entries. For detailed information regarding registry editing, please refer to the following articles from Microsoft:

  1. HOW TO: Backup, Edit, and Restore the Registry in Windows 95, Windows 98, and Windows ME
  2. HOW TO: Backup, Edit, and Restore the Registry in Windows NT 4.0
  3. HOW TO: Backup, Edit, and Restore the Registry in Windows 2000
  4. HOW TO: Back Up, Edit, and Restore the Registry in Windows XP and Server 2003

Removing Autostart Entry from the Registry

Removing autostart entry from the registry prevents the malware from executing at startup.

If the registry entry below is not found, the malware may not have executed as of detection. If so, proceed to the succeeding solution set.

  1. Open Registry Editor. Click Start>Run, type REGEDIT, then press Enter.
  2. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>
    CurrentVersion>Run
  3. In the right panel, locate and delete the entry:
    KSVSvc.exe = "%Windows%\KSVSvc.exe"
  4. Close Registry Editor.

Running Trend Micro Antivirus

If you are currently running in safe mode, please restart your computer normally before performing the following solution.

Scan your computer with Trend Micro antivirus and delete files detected as TSPY_ONLINEG.CTM. To do this, Trend Micro customers must download the latest virus pattern file and scan their computer. Other Internet users can use HouseCall, the Trend Micro online virus scanner.