Microsoft Security Essentials (MSE), the software giant's free antimalware solution, is one of the few products that is not affected by the recently rediscovered method for disabling security software on Windows
. MSE does not use SSDT hooks, so its real-time protection cannot be disabled via this method.
When the report was first published, we noticed that MSE was not on the list of affected products and contacted Microsoft for clarification. "Microsoft is aware of research published by Matousec and we are investigating the issue," a Microsoft spokesperson told Ars. "Based on available information, we do not believe our products are affected due to the design of our real-time protection. We are working to confirm this."