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Hook.asm
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Hook.asm
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.data
nPacketLength dq 0
lpSendBuffer dq 0
lpSendClass dq 0
.code
EXTERN Sleep: PROC
EXTERN lpCreatePacketFunc : dq
EXTERN lpSendPacketFunction : dq
EXTERN lpSendPacketReturnAddress : dq
EXTERN lpEntitySpawnFunctionAddress : dq
EXTERN lpEntitySpawnReturnAddress : dq
EXTERN lpEntityLabelSpawnCallbackAddress : dq
EXTERN lpEntityLabelSpawnReturnAddress : dq
EXTERN lpReduceCPUReturnAddress: dq
EXTERN lpHandleKeypress : dq
EXTERN lpHotkeyHookReturn: dq
EXTERN lpClientMessageReturnAddr: dq
EXTERN lpClientMessageHookFunc : dq
EXTERN lpOnSkillGemLevelUpHookFunc : dq
EXTERN lpOnSkillGemLevelUpReturnAddr : dq
EXTERN lpMinimapIconsHookFunc : dq
EXTERN lpMinimapIconsReturnAddr : dq
EXTERN CPUReducerSleepTime : dq
GetSendClass PROC
mov rax, lpSendClass
ret
GetSendClass ENDP
SetCPUReducerTime PROC
mov CPUReducerSleepTime, rcx
ret
SetCPUReducerTime ENDP
OutPacketHook PROC
pushfq
push rax
push rbx
push rcx
push rdx
push rsi
push rdi
push rbp
push rsp
push r8
push r9
push r10
push r11
push r12
push r13
push r14
push r15
sub rsp,1040h
push rcx
push rdx
push rax
mov rax, [rbx+1C8h]
mov nPacketLength, rax
mov rax, [rbx+1F0h]
mov lpSendBuffer, rax
mov rcx, lpSendBuffer
mov rdx, nPacketLength
mov lpSendClass, rbx
call lpCreatePacketFunc
pop rax
pop rdx
pop rcx
add rsp,1040h
pop r15
pop r14
pop r13
pop r12
pop r11
pop r10
pop r9
pop r8
pop rsp
pop rbp
pop rdi
pop rsi
pop rdx
pop rcx
pop rbx
pop rax
popfq
mov r8, [rcx+1C8h]
jmp lpSendPacketReturnAddress
OutPacketHook ENDP
SendPacket PROC
; RCX = SendClass //Only real param in func, we use 3 to make replacing ptr easier
; RDX = Packet Buffer
; R8 = Length
sub rsp, 5F0h ;allocate space
push rax
push r14 ;save old buffer
push r10
mov rax, rcx ;SendClass
cmp rax,0
je ending
add rax, 1F0h
mov r14, rax ;save old buffer
mov r14, [r14]
mov [rax], rdx ;swap our buffer ptr into their send class .. param 2
sub rax, 28h
mov r10, [rax] ;save length into r10
mov [rax], r8 ; length, parameter 3 into their struct
call lpSendPacketFunction
add rax, 1F0h ;restore original data to structure
mov [rax], r14
sub rax, 28h
mov [rax], r10
ending:
pop r10
pop r14
pop rax
add rsp, 5F0h
ret
SendPacket ENDP
EntitySpawnHook PROC
pushfq
push rax
push rbx
push rcx
push rdx
push rsi
push rdi
push rbp
push rsp
push r8
push r9
push r10
push r11
push r12
push r13
push r14
push r15
sub rsp,28h
mov rcx, rax
call lpEntitySpawnFunctionAddress
add rsp,28h
pop r15
pop r14
pop r13
pop r12
pop r11
pop r10
pop r9
pop r8
pop rsp
pop rbp
pop rdi
pop rsi
pop rdx
pop rcx
pop rbx
pop rax
popfq
add rsp, 50h
pop r14
jmp lpEntitySpawnReturnAddress
EntitySpawnHook ENDP
EntityLabelSpawnHook PROC
pushfq
push rax
push rbx
push rcx
push rdx
push rsi
push rdi
push rbp
push rsp
push r8
push r9
push r10
push r11
push r12
push r13
push r14
push r15
sub rsp,28h
call lpEntityLabelSpawnCallbackAddress
add rsp,28h
pop r15
pop r14
pop r13
pop r12
pop r11
pop r10
pop r9
pop r8
pop rsp
pop rbp
pop rdi
pop rsi
pop rdx
pop rcx
pop rbx
pop rax
popfq
nop
mov rax,[rsp+48h]
jmp lpEntityLabelSpawnReturnAddress
EntityLabelSpawnHook ENDP
CPUReduceHook PROC
pushfq
push rax
push rbx
push rcx
push rdx
push rsi
push rdi
push rbp
push rsp
push r8
push r9
push r10
push r11
push r12
push r13
push r14
push r15
push rcx
sub rsp,280h
mov rcx, CPUReducerSleepTime ;change to variable
call Sleep
add rsp,280h
pop rcx
pop r15
pop r14
pop r13
pop r12
pop r11
pop r10
pop r9
pop r8
pop rsp
pop rbp
pop rdi
pop rsi
pop rdx
pop rcx
pop rbx
pop rax
popfq
add r8,04
mov [rcx+20h],eax
;mov rdx,r10
jmp lpReduceCPUReturnAddress
CPUReduceHook ENDP
HotkeyHook PROC
pushfq
push rax
push rbx
push rcx
push rdx
push rsi
push rdi
push rbp
push rsp
push r8
push r9
push r10
push r11
push r12
push r13
push r14
push r15
sub rsp,280h
call lpHandleKeypress
add rsp,280h
pop r15
pop r14
pop r13
pop r12
pop r11
pop r10
pop r9
pop r8
pop rsp
pop rbp
pop rdi
pop rsi
pop rdx
pop rcx
pop rbx
pop rax
popfq
lea rax,[rsp+98h]
jmp lpHotkeyHookReturn
HotkeyHook ENDP
ClientMessageHook PROC
pushfq
push rax
push rbx
push rcx
push rdx
push rsi
push rdi
push rbp
push rsp
push r8
push r9
push r10
push r11
push r12
push r13
push r14
push r15
sub rsp,280h
call lpClientMessageHookFunc
add rsp,280h
pop r15
pop r14
pop r13
pop r12
pop r11
pop r10
pop r9
pop r8
pop rsp
pop rbp
pop rdi
pop rsi
pop rdx
pop rcx
pop rbx
pop rax
popfq
mov [rsp+08],rbx
jmp lpClientMessageReturnAddr
ClientMessageHook ENDP
;r8 = item gear slot
;r9 = links slot
OnSkillGemLevelUpHook PROC
pushfq
push rax
push rbx
push rcx
push rdx
push rsi
push rdi
push rbp
push rsp
push r8
push r9
push r10
push r11
push r12
push r13
push r14
push r15
sub rsp,280h
push rcx
push rdx
push r8
mov rcx, r8
mov rdx, r9
mov r8, rdi
call lpOnSkillGemLevelUpHookFunc
pop r8
pop rdx
pop rcx
add rsp,280h
pop r15
pop r14
pop r13
pop r12
pop r11
pop r10
pop r9
pop r8
pop rsp
pop rbp
pop rdi
pop rsi
pop rdx
pop rcx
pop rbx
pop rax
popfq
push rbx
sub rsp, 50h
jmp lpOnSkillGemLevelUpReturnAddr
OnSkillGemLevelUpHook ENDP
MinimapIconsHook PROC
pushfq
push rax
push rbx
push rcx
push rdx
push rsi
push rdi
push rbp
push rsp
push r8
push r9
push r10
push r11
push r12
push r13
push r14
push r15
sub rsp,280h
push rcx
call lpMinimapIconsHookFunc
pop rcx
add rsp,280h
pop r15
pop r14
pop r13
pop r12
pop r11
pop r10
pop r9
pop r8
pop rsp
pop rbp
pop rdi
pop rsi
pop rdx
pop rcx
pop rbx
pop rax
popfq
mov [rsp+10h],rbx
jmp lpMinimapIconsReturnAddr
MinimapIconsHook ENDP
END