This encrypted virus appears to do nothing of interest but replicate. It will "pad" files with garbage before infecting them, so disinfected files may be up to 511 bytes longer than the original.
Based on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the detected program or file, or ask you for a desired action.
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See the manual for your F-Secure product on the Help Center.
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