Threat Descriptions

Trojan-Spy:W32/KeyLogger.RK

Classification

Category :

Malware

Type :

Trojan-Spy

Platform :

W32

Aliases :

Trojan-Spy:W32/KeyLogger.RK

Summary

This is a key-logging trojan that logs all the keystrokes of the user and sends them to a particular website.

Removal

Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.

A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:

  • Check for the latest database updates

    First check if your F-Secure security program is using the latest updates, then try scanning the file again.

  • Submit a sample

    After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.

    Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.

  • Exclude a file from further scanning

    If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.

    Note: You need administrative rights to change the settings.

Technical Details

This malware may arrive as an attachment labeled as a Microsoft Word RTF file.Upon Execution, this malware displays the following fake error message:

It then drops the following files on Windows System folder:

  • %systemdir%\GenuineLicence.exe - Detected as Trojan-Spy.Win32.KeyLogger.rk
  • %systemdir%\kbd.dll - Detected as Trojan-Spy.Win32.KeyLogger.rk
  • %systemdir%\test.dll - Detected as Trojan-Spy.Win32.KeyLogger.rl

Note: %systemdir% by default is C:\Windows\system32

It also creates the following registry key as part of its auto-start mechanism:

  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run service = "C:\WINDOWS\system32\GenuineLicence.exe"

Initially, it will try to contact this url to set the infected machine's status

  • http://208.101.11.38/~mbs1/mail/cgi-bin/scripts/.old/[REMOVED].php

Then this malware sends the user's keystrokes including its ip address to this url:

  • http://208.101.11.38/~mbs1/mail/cgi-bin/scripts/.old/[REMOVED].php