Does MWG 6.9.3 with next antimalware:
McAfee Gateway Anti-Malware 2010.1E, GWDAT 1187, AV 5400, DAT 6809
Avira - 184.108.40.206
affected to issue that described in KB76036?
this is still under investigation, but your version should be fine. What you are getting now from the update servers should work without issues.