Sent both files to the virus laboratory with a note of false positives, in the near future I think will be corrected.

Came the reply:

Your request has been analyzed. This operation is false. The error was corrected. (Virus Monitoring Service Doctor Web Ltd.)

Original file name: UsbFix.exe
File size: 1144645
MD5: 5d2328d28ed0861ba66c9ab4e8f35582

Original file name: biosagentplus_1218.exe
File size: 633360
MD5: 9a723001055ac806b73d97f2e2092a88