Microsoft yesterday updated their Antimalware Engine to v1.1.11202.0. This update was released to all Windows Defender, Microsoft Security Essentials, Forefront Client Security, Forefront Endpoint Protection, Windows Intune Endpoint Protection, and System Center Endpoint Protection customers on 17 Nov 2014. This update includes Signature package 1.189.0.0. Update your devices to get full protection from virus, malware and others.