Bolzano infects Win32 EXE files. There are several variants.
Bolzano.A, B and C infect EXE files in traditional manner, while Bolzano.D uses inserting technique to infect EXE files.
Under Windows NT, Bolzano modifies NTOSKRNL.EXE so that any user has the rights to modify any file on NTFS volumes, regardless of their real user rights.
Bolzano is not common in the wild.
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.
Description Details: By Mikko Hypponen, based on information from Peter Szor, 1997