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Difficulty debugging Steam games

 
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Rhagic
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Joined: 23 Aug 2011
Posts: 94

PostPosted: Mon Aug 29, 2011 12:40 pm    Post subject: Difficulty debugging Steam games Reply with quote

I'm running Win7 64bit and CH6.1. I've taken the trouble of self-signing dbk64.sys and I'm running Windows in test mode.

I've been trying to attach a debugger to the Warhammer 40k Space Marine Demo on Steam. I've tried each of the three debugger options and the game exits instantly with VEH and windows debuggers.

With the kernelmode debugger and searching for "what writes to" an address, I get one match and then the game hangs and my PC blue screens.

Any suggestions? Worth increasing the recording stack size?

The suggestion I've seen else where of trying to attach the debugger sooner, does that make a difference if you're using DBVM?

Many thanks
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Dark Byte
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Joined: 09 May 2003
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Location: The netherlands

PostPosted: Mon Aug 29, 2011 1:36 pm    Post subject: Reply with quote

Sounds like all 4 debug registers are used for emulation
Try kernelmode debug with the global debug option, or wait for a cracked version of that game

Also, that one instruction should be enough for a code injection(check the registers and stack)

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