Detection names starting with 'Virtool' are Generic Detections for utility programs that can be misused to access a computer system and perform actions that may be unauthorized by the machine's primary user.
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 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.
The Type designation 'Hack-tool' was previously used by F-Secure to identify a utility program that can be used, or misused, to access remote computers.
With changes in the threat landscape today, programs previously identified as 'Hacktool' have been reclassified under the Riskware Category, with the Type designation 'Hack-Tool'.
The update in naming better clarifies the program's overall security profile in the current, more complex threat landscape.