def METHOD_NAME(self):
    dce, rpctransport = self.connect()
    resp = even.hElfrOpenELW(dce, 'Security', '')
    resp.dump()
    request = even.ElfrBackupELFW()
    request['LogHandle'] = resp['LogHandle']
    request['BackupFileName'] = '\\??\\c:\\beto2'
    with assertRaisesRegex(self, DCERPCException, "STATUS_OBJECT_NAME_INVALID"):
        dce.request(request)