Threat description


Platform: W32


This malware drops itself into the system. Its purpose does not appear to be directly malicious. Most of the program's strings are encrypted using the Windows' cryptographic services.


Automatic action

Depending on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the suspect file, or ask you for a desired action.

More scanning & removal options

More information on the scanning and removal options available in your F-Secure product can be found in the Help Center.

You may also refer to the Knowledge Base on the F-Secure Community site for more information.

Contact Support

F-Secure customers can request support online via the Request support or the Chat forms on our Home - Global site.

Technical Details

This malware does not appear to be a direct security threat, although it installs itself into the system without asking for any kind of permission from the user. Most of the malware's textual content is encrypted by means of the Cryptography API provided by Windows. The Cryptographic Service Provider used is "Microsoft Base Cryptographic Provider v1.0", and the encryption algorithm used is RSA. Of course, the decryption Key lies within the program's code, which renders the obfuscation attempt almost useless.

Installation to system

It will copy itself into the Windows' System folder as any of the following:

p4mx4.exe  audioinf.exe  kbddrv32.exe  svcinfo.exe  msurl32.exe  mswave.exe  enhance32.exe  helpex32.exe  main32.exe  vidcntl.exe   

And will add an entry in the registry at:


Which will be named as the filename dropped (without the extension) and point to the executable.


Detection in F-Secure Anti-Virus was published on November 12th, 2003 in update: Detection Type:PC

Description Details: Alexey Podrezov, February 23rd, 2004;


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