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OllyDbg Plugins: AttachAnyway

File Information
Category Open Source # Downloads Version
OllyDbg Plugins Yes 13,549 0.3

Download from OpenRCE
MD5 Sum: 4CFFB34852761B1D0EBAB0061D04BD81

Last updated on Sep 7, 2005 with the following description: Updated to detect  Piotr's anti-debugger-attach method two.

Author Information
Username Name E-Mail URL
  joestewart Joe Stewart jstewartlurhqcom http://www.joestewart.org/

Description AttachAnyway is a PoC OllyDbg plugin designed to show how to remove a process' hook on NtContinue by the anti-debugger-attach method devised by Piotr Bania here:

http://pb.specialised.info/all/anti-dattach.asm

This is not intended to be a universal plugin for all anti-attach methods, just one example of how you can do it. It works by enumerating all processes, searching their virtual memory space for a JMP hook on the NtContinue method, then replacing the jump with the original bytes from a non-hooked process, then calling the OllyDbg Attachtoactiveprocess API.

attach-test.exe is an assembled version of Piotr's anti-dattach.asm you can use to test the plugin with.

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