This is a generic name for attacks where the user is trying to be tricked to enter confidential information via email forms or fake web pages.
Typically these are attempts to get banking or credit card information.
Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.
More information on 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.