docs: def check_checksum_mismatch(self):
          ''' Checking for a checksum that doesn't match the generated checksum '''
          if self.pefile_handle.OPTIONAL_HEADER:
              if self.pefile_handle.OPTIONAL_HEADER.CheckSum != self.pefile_handle.generate_checksum():
                  return {'description': 'Reported Checksum does not match actual checksum', 
                          'severity': 2, 'category': 'MALFORMED'}
          return None