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[原创]一个纯汇编写的Hook API的例子！！！
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发表于: 2007-11-1 09:47
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一个纯汇编写的Hook API的例子！！！这里只列出驱动程序，控制程序这里不列出了！
有不好的地方，还请各位多见谅！也希望大家有好的建议能提出来！
纯汇编写的，还望大家多多支持哦！
.386
.model flat,stdcall
option casemap:none
include ntstatus.inc
include ntddk.inc
include w2kundoc.inc
include hal.inc
include ntoskrnl.inc
includelib hal.lib
includelib ntoskrnl.lib
.const
szdevicename dw '\','D','e','v','i','c','e','\','z','h','t','j','i','a',0
szconnect dw '\','?','?','\','l','s','z','h',0
.data?
sz1 UNICODE_STRING <?>
sz2 UNICODE_STRING <?>
scr0 dd ?
old dd ?
padd dd ?
.code
func proc p1,p2,p3,p4,p5,p6,p7,p8,p9
xor eax,eax
ret
func endp
workit proc
pushad
cli
mov eax,cr0
mov scr0,eax
and eax,0fffeffffh
mov cr0,eax
mov eax,KeServiceDescriptorTable
mov eax,[eax]
mov eax,[eax]
add eax,30h*4h
mov padd,eax
mov ecx,[eax]
mov old,ecx
lea ecx,func
mov [eax],ecx
mov eax,scr0
mov cr0,eax
sti
cld
stosd
popad
mov eax,1000h
ret
workit endp
makeit proc pdevice,pirp
local status,dwbytesret
pushad
and dwbytesret,0
mov esi,pirp
mov edi,[esi+60h]
mov ecx,[edi+0ch]
sub ecx,22e000h
or ecx,ecx
jnz @1
mov ecx,[edi+4h]
sub ecx,1000h
or ecx,ecx
jnz @2
mov ecx,[edi+8h]
sub ecx,1000h
or ecx,ecx
jnz @2
mov edi,[esi+0ch]
invoke workit
mov dwbytesret,eax
and status,0
jmp @3
@2:
mov status,STATUS_BUFFER_TOO_SMALL
@1:
mov status,STATUS_INVALID_DEVICE_REQUEST
@3:
push status
pop [esi+18h]
push dwbytesret
pop [esi+1ch]
invoke IoCompleteRequest,pirp,IO_NO_INCREMENT
popad
mov eax,status
ret
makeit endp
createclose proc pdevice,pirp
mov eax,pirp
xor ecx,ecx
mov [eax][18h],ecx
mov [eax][1ch],ecx
invoke IoCompleteRequest,pirp,IO_NO_INCREMENT
xor eax,eax
ret
createclose endp
driverunload proc pdri
cli
mov eax,cr0
mov scr0,eax
and eax,0fffeffffh
mov cr0,eax
mov edi,padd
mov eax,old
cld
stosd
mov eax,scr0
mov cr0,eax
sti
invoke IoDeleteSymbolicLink,offset sz2
mov eax,pdri
invoke IoDeleteDevice,[eax+04h]
ret
driverunload endp
driverentry proc pdri,pregpath
local pdevice,status
mov status,STATUS_DEVICE_CONFIGURATION_ERROR
invoke RtlInitUnicodeString,offset sz1,offset szdevicename
invoke RtlInitUnicodeString,offset sz2,offset szconnect
invoke IoCreateDevice,pdri,0,offset sz1,FILE_DEVICE_UNKNOWN,0,0,addr pdevice
.if !eax
invoke IoCreateSymbolicLink,offset sz2,offset sz1
.if !eax
mov eax,pdri
mov [eax][38h+4h*IRP_MJ_CREATE],offset createclose
mov [eax][38h+4h*IRP_MJ_CLOSE],offset createclose
mov [eax][38h+4h*IRP_MJ_DEVICE_CONTROL],offset makeit
mov [eax][34h],offset driverunload
and status,0
.else
invoke IoDeleteDevice,pdevice
.endif
.endif
mov eax,status
ret
driverentry endp
end driverentry
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被人玩烂了的SSDT
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呵呵~~~
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多谢炉子同志注释,有好的建议说下!
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哈哈,偶最近也在看ASM,
炉子注释的不错啊~~~
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[QUOTE=zhtjia;377438];？？？？？压进去弹出来到底想干嘛-。-
push status pop [esi+18h] 这是为了使生成的代码更小![/QUOTE]  asm不能直接两个变量间mov,所以用堆栈来说是最好的
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多谢二位
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眼疾吧
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这次确实是该打pp了
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