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OllyGuard

Tool name: OllyGuard
Rating: 0.0 (0 votes)
Author: MOID                        
Website: N/A
Current version: 0.1.2
Last updated: April 19, 2007
Direct D/L link: Locally archived copy
License type: Free / Open Source
Description: Small plugin to fixes OllyDBG's buggy handling of EXCEPTION_PAGE_GUARD (Olly has fatal problems with guarded pages, it uses them itself internally to set memory breakpoints on access, however, every guard page violation caused by any other reason than its own guarded pages is also treated as a memory breakpoint by Olly, which can e.g. thus be used as an anti-debugging trick by protectors etc, but this plugin fixes this weakness in Olly)

Like any useful plugin, it uses undocumented stuff. ;) It patches Olly 1.10 so that it can hook exception handling and breakpoint setting correctly. Probably won't work on any other version.

Includes source and also a version for Invisible SnD Ollydbg.
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