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OllyDbg Plugins: Heap Vis

File Information
Category Open Source # Downloads Version
OllyDbg Plugins Yes 15,471 1

Download from OpenRCE
MD5 Sum: 815B1DD9CD01A6DAE3A2374CAC590384

Last updated on Jun 10, 2005 with the following description: Fixed bug that was causing the plug-in to hang (plug-in still hangs due to deadlock in some cases, see description).

Author Information
Username Name E-Mail URL
  pedram Pedram Amini pedramaminigmailcom http://pedram.openrce.org

Description You may have noticed the ghosted 'Heap' option under the 'View' menu in OllyDBG. The feature is available only under Windows 95 based OSes and is supposed to display a list of allocated memory blocks. The Olly Heap Vis plug-in was written to provide this functionality and more on all modern Windows OSes such as Windows 2000, XP and 2003. The OllyDbg Heap Vis plug-in exposes the following functionality:

  - View Heaps
  - Search Heaps
  - Jump to Heap Chunk
  - Create Heap Visualization

More information, screenshots and source code are available in the bundled archive.

Known Limitations/Issues
This plug-in relies on the Heap32xxx() Windows API. Due to locking issues the plug-in may hang when used in certain instances. Furthermore, the plug-in is unable to enumerate broken heaps also due to the reliance on the Heap32xxx() API. Code to manually walk the PEB has been started but currently incomplete.

Screenshot

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