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Xblade Of Heaven
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Posts: 395
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 Posted: Fri Dec 11, 2015 3:21 pm Post subject: How compare a Uniode String AA |
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Hi all, i have a small question, is possible cmp a uncode string in a AA?
i use this unicode string: AShockPlayer
and for try a small comparation use ony AS unicode A.S. 4 bytes
| Code: | alloc(example,1024)
mov eax,dword ptr[ecx]
cmp dword ptr[eax+450],example
jne code
code:
my example code
example:
dd 'A',0,'S',0
dealloc(example) |
but no work, cmp no work, anyone have some idead why?
thanks!
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Redouane
Master Cheater
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Joined: 05 Sep 2013
Posts: 363
Location: Algeria
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| Posted: Fri Dec 11, 2015 4:06 pm Post subject: Re: How compare a Uniode String AA |
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| Code: | alloc(example,1024)
// The function will overwrite eax
push example
push [eax+450] // assuming that [eax+450] is a pointer to the string
call Kernel32.lstrcmpW // There is also the case insensitive version
cmp eax,0 // or test eax,eax
mov eax,dword ptr[ecx]
jz code // if it jumps,they are equal,eax = 0
jmp other_code // now,they aren't equal
code:
my example code
example:
dd 'A',0,'S',0
dealloc(example) |
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++METHOS
I post too much
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Posts: 4197
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| Posted: Fri Dec 11, 2015 5:31 pm Post subject: |
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| You can always compare hex equivalent.
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Zanzer
I post too much
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Joined: 09 Jun 2013
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| Posted: Fri Dec 11, 2015 5:57 pm Post subject: |
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Meh...
| Code: | cmp word ptr[eax+450],'e'
jne code
cmp word ptr[eax+452],'x'
jne code
cmp word ptr[eax+454],'a'
jne code
cmp word ptr[eax+456],'m'
jne code
cmp word ptr[eax+458],'p'
jne code
cmp word ptr[eax+45A],'l'
jne code
cmp word ptr[eax+45C],'e'
jne code |
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Xblade Of Heaven
Master Cheater
Reputation: 0
Joined: 16 Oct 2005
Posts: 395
Location: DEAD
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| Posted: Fri Dec 11, 2015 7:43 pm Post subject: |
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thanks all for the help guys.
regards
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