McAfee VirusScan Access Protection: Common Standard Protection must be set to prevent hooking of McAfee processes.

Hooking covers a range of techniques used to alter or augment the behavior of an operating system, of applications, or of other software components by intercepting function calls, messages, or events passed between software components. Code that handles such intercepted function calls, events, or messages is called a 'hook'. Hooking can also be used by malicious code. For example, rootkits, pieces of software that try to make themselves invisible by faking the output of API calls that would otherwise reveal their existence, often use hooking techniques. This rule prevents other processes from hooking of McAfee processes.