Variants in the Worm:W32/Mimail family are worms that propagate in e-mail messages. The worm code itself is hidden in infected EXE or ZIP attachments.
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.
Some Mimail variants include a payload, which may involve stealing credit card information or conducting Distributed Denial-of-Service (DDoS) attacks against pre-determined websites.
For representative examples of Mimail variants, please see the descriptions below: