Difference between revisions of "Memory Imaging"

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== External Links ==
 
== External Links ==
 
* [http://en.wikipedia.org/wiki/Memory-mapped_I/O Wikipedia article on Memory-mapped I/O]
 
* [http://en.wikipedia.org/wiki/Memory-mapped_I/O Wikipedia article on Memory-mapped I/O]
* [http://brimorlabs.blogspot.com/2014/01/all-memory-dumping-tools-are-not-same.html All memory dumping tools are not the same], by Brian Moran, January 14, 2014
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* [http://www.dfrws.org/2013/proceedings/DFRWS2013-13.pdf Anti-forensic resilient memory acquisition], by [[Johannes Stuettgen]] and [[Michael Cohen]], DFRWS 2013
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* [http://brimorlabs.blogspot.com/2014/01/all-memory-dumping-tools-are-not-same.html All memory dumping tools are not the same], by [[Brian Moran]], January 14, 2014
  
 
[[Category:Memory Analysis]]
 
[[Category:Memory Analysis]]

Revision as of 15:10, 14 January 2014

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Further information might be found on the discussion page.

Memory imaging is the process of making a bit-by-bit copy of memory. In principle it is similar to Disk Imaging.

For physical memory it is common to have sections that are not accessible, e.g. because of memory-mapped I/O

The resulting copy is stored in a Forensics image format. Some of these formats have means to differentiate between an image of memory and e.g. that of a disk.

Methods

Reading from the Physical Memory Object

In Windows the Physical Memory Object, \\Device\PhysicalMemory, can be used the access physical memory. Since Windows 2003 SP1 user-mode access to this device-object is no longer permitted [1]. A kernel-mode process is still allowed to read from this device-object.

MmMapIoSpace

The MmMapIoSpace function (or routine) is kernel-mode function to map a physical address range to non-paged system space [2].

Also see

Memory Imaging Tools

External Links