Classification

Category :

Malware

Type :

IM-Worm

Aliases :

Skyperise, Skyperise

Summary

IM-Worm.Win32.Skyperise is a worm that propagates by sending chat messages to all possible Skype accounts. This chat message supposedly contains a link to a copy of the worm. The link to the malware is currently unavailable.

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

Upon execution, Skyperise searches for the presence of the Skype application in the system by checking the following registry entry:

  • HKEY_LOCAL_MACHINE\SOFTWARE\Skype\Phone SkypePath = "[Skype application path]"

It displays the following error message if the application is not found, and then it terminates:

Otherwise, it executes the Skype program and shows this Warning message:

Once the user has confirmed the Warning message, Skyperise randomly searches for users every three minutes. It then sends the following message to the discovered users:

  • Check this! http://marx2.altervista.org/[REMOVED].exe

Note: The path to which this link leads is unavailable at the time of this writing.