This is a primitive virus, which simply infects programs by overwriting (and destroying) them, but with an interesting twist.
The original virus is LZEXE packed, but this is not simply a method of hiding the first generation sample - the virus maintains the packing in all succeeding generations.
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.