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 Yamanner worm activates by just opening an infected e-mail message with Internet Explorer. To do this it uses a 0-day vulnerability in the Yahoo! Mail system.
Yamanner builds its e-mail messages and sends them to the infected user's contacts. The sent e-mails look as follows:
The worm resides inside the e-mail body. It also tries to open a web page in another browser window.
F-Secure Anti-Virus detects this malware with the following updates:
Detection Type: PC