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Index > Windows > Help about Exe Packer in fasm

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Dr.ALi-Satan



Joined: 03 Nov 2005
Posts: 8
Location: Armenia-Russian-Iran
Dr.ALi-Satan
Hi! I need to know how i can create an execute packer in (fasm/Generally).it's better with sample in fasm and article.(i dont know how to pack and load our exe in memory ,decompress it in memory and run it).thanks for your help Very Happy

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Post 01 Nov 2007, 01:20
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vid
Verbosity in development


Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia
vid
i doubt anyone will give you FASM sources for that.

my suggestion: Get some description of PE format, and try to write your own loader (program that loads executable to memory, loads it's imports and executes it). That is easiest thing to do, and is absolutely required if you want to do things like packer.

There are pretty many things to learn for that. You can ask specific questions here on board and people will more likely respond.
Post 01 Nov 2007, 02:21
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Dr.ALi-Satan



Joined: 03 Nov 2005
Posts: 8
Location: Armenia-Russian-Iran
Dr.ALi-Satan
Hi Vid! My problem is i don't know how to load an exe into memory and load imports of that exe!
Post 01 Nov 2007, 02:25
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vid
Verbosity in development


Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia
vid
then, you must study PE format.

- Google for "PE format", there are few good references are articles about PE.

- Take a look at IczLions PE tutorials

- Search this board for "PE from scratch" or "PE scratch" or something like that.

- Get some PE inspection tools like LordPE, and study existing executables.

You just need to experiment, PE format is not simple and takes time to understand.
Post 01 Nov 2007, 03:15
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Dr.ALi-Satan



Joined: 03 Nov 2005
Posts: 8
Location: Armenia-Russian-Iran
Dr.ALi-Satan
;)thanks For Your HELP!
Post 01 Nov 2007, 03:19
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