This is a complicated stealth virus, which infects files when they are accessed. Occasionally the virus displays this message:
ALPHA STRIKE Advanced Tactical Viral Implant by NEUROBASHER'93 / Germany
See: Tremor, Nightfall, Neuroquila.
Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.
More scanning & removal options
More information on scanning or removal options is available in the documentation for your F-Secure security product on the Downloads section of our Home - Global site.
You may also refer to the Knowledge Base on the F-Secure Community site for more information.