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Dark Byte
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 Posted: Mon Dec 14, 2020 5:04 am Post subject: |
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why are you writing xmm4 to rbx+0 ?
Are you sure that's where you want to write to? (It's usually the vtable pointer of the class)
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MMM-304
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Location: Milkey Way
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| Posted: Mon Dec 14, 2020 6:05 am Post subject: |
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| since it is injection at writing opcode and not only 4 but 16 bytes are written from rbx to rbx+10. and you just skip all that by jumping to Entity, this is most probably the reason it is crashing. |
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Meiyoh
Master Cheater
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| Posted: Mon Dec 14, 2020 7:05 am Post subject: |
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| MMM-304 wrote: | | since it is injection at writing opcode and not only 4 but 16 bytes are written from rbx to rbx+10. and you just skip all that by jumping to Entity, this is most probably the reason it is crashing. |
Can you tell me how to fix this ?
How to make it work without crash and check if 1 is there then NOP itself ?
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Dark Byte
Site Admin
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Location: The netherlands
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| Posted: Mon Dec 14, 2020 8:01 am Post subject: |
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try
| Code: |
[ENABLE]
aobscanmodule(test,DarkSoulsRemastered.exe,0F 29 23 C7 83 BC 01 00 00 00 00 80 3F) // should be unique
alloc(newmem,$1000,"DarkSoulsRemastered.exe"+2BA998)
label(code)
label(return)
newmem:
code:
movaps [rbx],xmm4
mov [rbx+000001BC],3F800000
mov rcx,[rsp+30]
jmp return
test:
jmp newmem
test+12:
return:
registersymbol(test)
[DISABLE]
test:
db 0F 29 23 C7 83 BC 01 00 00 00 00 80 3F 48 8b 4c 24 30
unregistersymbol(test)
dealloc(newmem)
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MMM-304
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| Posted: Mon Dec 14, 2020 9:35 am Post subject: |
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i donot know which one of following values must be written every execution
| Code: | [rbx]
[rbx+4]
[rbx+8]
[rbx+C] |
find out which one of these is crashing
tho alignment of rbx for movaps doesnt seem a problem as u are not doing anything to rbx |
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Meiyoh
Master Cheater
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| Posted: Mon Dec 14, 2020 2:07 pm Post subject: |
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NVM i already gave up.
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Csimbi
I post too much
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| Posted: Wed Dec 16, 2020 2:17 am Post subject: |
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| Why did you remove the OP? |
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