This is a family of 8 viruses from Bulgaria, reported to be written by a person named Martin Harizanov. The viruses can be divided into two groups, the first containing variants 1,2,2B and 7 but the other group contains variants 3,4,5 and 6.
Not fully analyzed, but the variants do not appear to be particularly interesting.
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.