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Tool name: FastSystemCallHook
Rating: 0.0 (0 votes)
Author: Darawk                        
Website: N/A
Current version:
Last updated: April 5, 2008
Direct D/L link: Locally archived copy
License type: Free / Open Source
Description: A snippet of code which is a KiFastSystemCall hook I wrote that hooks all user-mode APIs by replacing the SYSENTER MSR. It works also on multi-processor systems and should be easy to extend into a fully functional library if you want to.
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Only kernel mode not "all user-mode APIs"

Real neat, but IMHO you should edit to say "that hooks all user-mode APIs".."that enter kernel mode".. This is hooking only APIs that enter kernel mode. A lot, but certainly not "all" as there are many calls over the many Windowns APIs, that stay in user mode. And thus never go through "KiFastSystemCall()"

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