Hi!
25-Сен-2004 16:22 [EMAIL PROTECTED] (Michael Devore) wrote to
[EMAIL PROTECTED]:
MD> have will work with it, disassembly isn't much use given the compression.
There exists a lot of different unpacking programs. See, for example,
<http://coding.shelter.ro/toolz/tron.zip>. This site contains a lot of many
other packing, unpacking, hacking and other stuff. I myself up to now use
DISLITE for unpacking PKLITE-ed executables and very smart UNP 4.11 for
others.
MD> Somewhat relatedly, I may soon change EMM386 to check ranges of restricted
MD> CPU instruction opcodes and then use the much maligned self-modifying code
MD> to generate an instruction within EMM386 on the fly rather than special
MD> casing everything. It's getting to be too many instructions and too big
MD> for that approach. Now I just have to track down a list of 0fh-prefix
MD> opcodes on the Internet for a reference rather than hand-coding each one.
This is right way, I suggest. Though, I should ask: will EMM386 check
instuction validness (for example, what about F0 0F C7 C8?) and how will
behave system in case, when instruction will work incorrectly? As I
understand, you mean instruction executing in ring 0, and here EMM386 can't
trap wrong execution?
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