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code caving

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Old   #1
 
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Exclamation code caving

will putting a NOP in a code cave prevent detection??



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Quote:
Originally Posted by H4xingjeremy View Post
will putting a NOP in a code cave prevent detection??
Lets atleast TRY to use the Questions and Answers thread. And on trial account no.


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well i have a subscription now but if a character gets banned will that whole account be banned??
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Quote:
Originally Posted by H4xingjeremy View Post
well i have a subscription now but if a character gets banned will that whole account be banned??
Sadly but Subbed accounts have to be manually banned, so don't get player reported.


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ok im really confused on how to make a code cave that nops the COF to prevent detection im not getting any where because of lack of info...
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HELLO???
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Quote:
Originally Posted by H4xingjeremy View Post
HELLO???
Dont expect an answer in 4 hours. Patience, young grasshopper.

-red
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Red you know any guides that explain the [ESI+2B] junk?
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No need for a guide, it's simple...

Example...

At the mem address (0x)6123abc is a value for health - lets say 100. When setting a BP on that offset it shows you functions accessing it.

Lets assume it's another offset with the asm code : mov [eax+15], edi.

in this case the register eax holds an offset. The offset is 6123AA7. Why ? Because 6123AA7 + 15h (h for hex!) is 6123abc.

So this functions copies whatever the register edi holds into our offset 6123AA7.

Lets say we want our health to always be 100. Of course, you would now just NOP the full code, that would do it. However you could also write

mov [eax+15], 64

64h is 100 dec. Therefore this function will now write always a 100 into [eax+15].

Now to the interesting part ...

if you write a "mov edi, 100" infront of "mov [eax+15], edi" it will overwrite whatever stands the edi register at that time.

there is also a difference between "mov [eax+15], edi" - here it reads the eax+15 and puts it into the destination of whatever the register holds. without the [] you'll write into the register directly.

Make sure you dont overwrite registers when you are unsure if the register is used again at a later point of the code.
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Thank for the quick response. Also I was just looking at that uber cool "Knowledge is Power" website
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Try to find some ASM tutorials, there are some great tuts on google which explain really all the commands & registers. In Addition to that, the CE debugger explains each select codeline in it.
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Quote:
Originally Posted by Itburnz View Post
Try to find some ASM tutorials, there are some great tuts on google which explain really all the commands & registers. In Addition to that, the CE debugger explains each select codeline in it.
You tried out MHS yet?
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Yeah sucks.
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umm lol? why do all my threads become ones that do not help me?....
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H4xingjeremy, you asked what Code caving was, and if it would help prevent detection, answer was No.... you than asked another question, and that was answered, than ItBurnz Made a Great description on waht Code Caving Is, and how it would look in the disassembler. What more do you need from this thread?


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