An issue in Malwarebytes Premium Security v5.0.0.883 allows attackers to execute arbitrary code via placing crafted binaries into unspecified directories. NOTE: Malwarebytes argues that this issue requires admin privileges and that the contents cannot be altered by non-admin users.
https://googleprojectzero.blogspot.com/2016/02/the-definitive-guide-on-win32-to-nt.html