Poler is a very intrusive adware that F-Secure Anti-Virus detects as a trojan because of its features.
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.
When run, the trojan hiddenly installs itself to system by copying its file with a random name to Windows System folder and by creating s startup key for that file in Windows Registry. On attempt to terminate its process, the trojan re-installs itself to system with a different name and changes the startup key in the Registry accordingly.