I'm running Windows 8.1 64bit with Windows Defender. Over the past couple weeks I notice the computer is slightly slower than normal, my adblocker doesn't seem to work as well, and programs such as Adobe Reader occasionally freeze (this never used to happen). Windows Defender popped up twice and said it detected Win32/Hadsruda!bit and I delted both of them. I then ran a full scan and found BroswerModifier:Win32/Diplugem. I deleted it.