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  #1  
Old 05-16-2004, 11:30
bollygud
 
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what you just described there sounds like your standard (and old trick i might add) way of handling some apis that always return a specific value into eax. such as GetCommandLineA, GetVersion, GetVersionExA, GetModuleHandleA, and others. why not do a reference lookup to something that writes to [EBP+1AB87] and you should find your answer.
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Old 05-16-2004, 11:50
britedream britedream is offline
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I had discussion about unpacking svkp dap 7.1 on _http://forum.accessroot.com/, some time ago.
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Old 05-18-2004, 00:36
nikola nikola is offline
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@bollygud: I figured that out myself but thought that someone knows if SVKP has this wrapping for a one same api always.
From britedreams link i figured out that this api is MessageBoxA (and still it is very strange to me) but that i "inline patch to read the region c50000"
If i got this correct i need to add this code to unpacked exe. Well, i did. I made new section and put that SVKP code there but exe crashes again :/
So, correct oep, correct api, correct bytes, good dump, packer code... what i need to do more? This cant be this hard....

btw messageboxa api passes when i add c50000 section but it crashes elsewhere. Anyone want to look at my exe?

Last edited by nikola; 05-18-2004 at 00:38.
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Old 05-18-2004, 10:00
britedream britedream is offline
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don't make new section , just use virtualAlloc to allocate the space needed then read the saved region back.

if you have changed the jmp I had referred to in the link above , please don't cut the invalid apies in importrec , fix the iat ignoring the msg.,if you are adding the region as I indicated.

Regards.

Last edited by britedream; 05-18-2004 at 12:46.
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