Monday, February 11, 2013

Setting the Process Context in KD

In my last post I showed you how to find your UM process in KD.  It produced output something like this:

kd> !process /m my_module.dll 0 0
Searching processes with loaded module 'my_module.dll'
Unable to get LeftChild of nt!_MMVAD_SHORT at ffffe00002d075c0
failed to count VADs
PROCESS ffffe00002d0a940
    SessionId: 0  Cid: 0394    Peb: 7ff72d81d000  ParentCid: 025c
    DirBase: 0ca19000  ObjectTable: ffffc00001423e40  HandleCount: 706.
    Image: svchost.exe

To change your context to this process, you use the .process command.

.process /r /p ffffe00002d0a940

/r <= is for reloading the symbols for the new process context
/p <= is for translating the page table entries so you can inspect the process' memory translated to KM

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