This type of trojan secretly downloads malicious files from a remote server, then installs and executes the files.
Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.
This malware is created to download and install rogues into the system.The presence of this malware is signified by the presence of windows like this one:
Or this one:
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