Trojan-Downloader:W32/Agent.MRL may be dropped onto the system as part of the payload of another malware, such as Exploit:W32/AdobeReader.UZ.
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.
On execution, Agent.MRL will attempt to download a file from a remote site. If successful, the downloaded file will be executed on the infected machine.