Function at 0x4021ed
Capabilities:
Create a process with modified i/o handles and window
Create pipe
Create process on windows

Disassembly:
push ebp
lea ebp, [esp - 0x64]
sub esp, 0xc4
push ebx
push esi
push edi
xor ebx, ebx
push 0x44
pop esi
push esi
xor edi, edi
lea eax, [ebp - 0x24]
push ebx
inc edi
push eax
mov dword [ebp + 0x60], 0x20
mov dword [ebp + 0x58], ebx
mov dword [ebp + 0x50], ebx
mov dword [ebp + 0x44], ebx
mov dword [ebp + 0x5c], ebx
mov dword [ebp + 0x48], ebx
mov dword [ebp + 0x54], ebx
mov dword [ebp + 0x40], ebx
mov dword [ebp + 0x4c], ebx
mov dword [ebp + 0x30], 0xc
mov dword [ebp + 0x34], ebx
mov dword [ebp + 0x38], edi
call sub.MSVCRT.dll_memset
mov cl, byte [ebp + 0x78]
add esp, 0xc
test cl, 2
mov dword [ebp - 0x24], esi
mov dword [ebp + 8], edi
je 0x402258
mov word [ebp + 0xc], bx
mov dword [ebp + 0x60], 0x28
jmp 0x40225c
mov word [ebp + 0xc], di
test cl, 0x40
mov esi, 0x100
je 0x402283
mov eax, dword [ebp + 0x7c]
cmp eax, ebx
je 0x402283
mov eax, dword [eax + 0xc]
cmp eax, ebx
je 0x402283
mov dword [ebp + 8], 0x101
mov dword [ebp + 0x14], eax
mov dword [ebp + 0x4c], edi
jmp 0x4022bc
test cl, 4
je 0x4022c0
test cl, 0x10
je 0x4022c0
push ebx
lea eax, [ebp + 0x30]
push eax
lea eax, [ebp + 0x50]
push eax
lea eax, [ebp + 0x58]
push eax
call dword [sym.imp.KERNEL32.dll_CreatePipe]
test eax, eax
je 0x4022c0
mov eax, dword [ebp + 0x58]
or dword [ebp + 8], esi
lea edi, [ebp + 0x50]
mov dword [ebp + 0x14], eax
call fcn.004021b6
mov dword [ebp + 0x4c], 1
and dword [ebp + 0x60], 0xfffffff7
mov eax, dword [ebp + 0x78]
and eax, 4
mov dword [ebp + 0x3c], eax
je 0x40233d
test byte [ebp + 0x78], 8
je 0x402304
push ebx
lea eax, [ebp + 0x30]
push eax
lea eax, [ebp + 0x5c]
push eax
lea eax, [ebp + 0x44]
push eax
call dword [sym.imp.KERNEL32.dll_CreatePipe]
test eax, eax
je 0x402304
mov eax, dword [ebp + 0x5c]
or dword [ebp + 8], esi
lea edi, [ebp + 0x44]
mov dword [ebp + 0x18], eax
call fcn.004021b6
and dword [ebp + 0x60], 0xfffffff7
mov dword [ebp + 0x4c], 1
test byte [ebp + 0x78], 0x20
je 0x40233d
push ebx
lea eax, [ebp + 0x30]
push eax
lea eax, [ebp + 0x54]
push eax
lea eax, [ebp + 0x48]
push eax
call dword [sym.imp.KERNEL32.dll_CreatePipe]
test eax, eax
je 0x40233d
mov eax, dword [ebp + 0x54]
or dword [ebp + 8], esi
lea edi, [ebp + 0x48]
mov dword [ebp + 0x1c], eax
call fcn.004021b6
and dword [ebp + 0x60], 0xfffffff7
mov dword [ebp + 0x4c], 1
test dword [ebp + 8], esi
je 0x40236c
cmp dword [ebp + 0x14], ebx
mov esi, dword [sym.imp.KERNEL32.dll_GetStdHandle]
jne 0x402354
push 0xfffffffffffffff6
call esi
mov dword [ebp + 0x14], eax
cmp dword [ebp + 0x18], ebx
jne 0x402360
push 0xfffffffffffffff5
call esi
mov dword [ebp + 0x18], eax
cmp dword [ebp + 0x1c], ebx
jne 0x40236c
push 0xfffffffffffffff4
call esi
mov dword [ebp + 0x1c], eax
mov edi, dword [ebp + 0x6c]
cmp edi, ebx
jne 0x402378
mov edi, 0x403006
cmp dword [ebp + 0x70], ebx
jne 0x402384
mov dword [ebp + 0x70], 0x403006
push edi
call sub.MSVCRT.dll_strlen
push dword [ebp + 0x70]
mov esi, eax
call sub.MSVCRT.dll_strlen
pop ecx
pop ecx
lea eax, [esi + eax + 4]
push eax
push ebx
push dword [0x404484]
call dword [sym.imp.KERNEL32.dll_HeapAlloc]
cmp byte [edi], 0x22
mov dword [ebp + 0x7c], eax
je 0x4023d3
mov esi, 0x403004
push esi
push eax
call sub.MSVCRT.dll_strcpy
push edi
push dword [ebp + 0x7c]
call sub.MSVCRT.dll_strcat
push esi
push dword [ebp + 0x7c]
call sub.MSVCRT.dll_strcat
add esp, 0x18
jmp 0x4023dc
push edi
push eax
call sub.MSVCRT.dll_strcpy
pop ecx
pop ecx
mov esi, dword [ebp + 0x70]
cmp byte [esi], bl
je 0x4023fc
push section..rdata
push dword [ebp + 0x7c]
call sub.MSVCRT.dll_strcat
push esi
push dword [ebp + 0x7c]
call sub.MSVCRT.dll_strcat
add esp, 0x10
mov eax, dword [ebp + 0x74]
cmp eax, ebx
je 0x40240a
cmp byte [eax], bl
jne 0x40240a
mov dword [ebp + 0x74], ebx
lea eax, [ebp + 0x20]
push eax
lea eax, [ebp - 0x24]
push eax
push dword [ebp + 0x74]
push ebx
push dword [ebp + 0x60]
push dword [ebp + 0x4c]
push ebx
push ebx
push dword [ebp + 0x7c]
push ebx
call dword [sym.imp.KERNEL32.dll_CreateProcessA]
test eax, eax
mov esi, dword [sym.imp.KERNEL32.dll_CloseHandle]
je 0x4024be
cmp dword [ebp + 0x5c], ebx
je 0x402440
push dword [ebp + 0x5c]
call esi
cmp dword [ebp + 0x58], ebx
je 0x40244a
push dword [ebp + 0x58]
call esi
cmp dword [ebp + 0x54], ebx
je 0x402454
push dword [ebp + 0x54]
call esi
push dword [ebp + 0x24]
call esi
test byte [ebp + 0x78], 1
je 0x40246a
push 0xffffffffffffffff
push dword [ebp + 0x20]
call dword [sym.imp.KERNEL32.dll_WaitForSingleObject]
cmp dword [ebp + 0x3c], ebx
je 0x4024b4
mov edi, 0x4044a8
push edi
call dword [sym.imp.KERNEL32.dll_EnterCriticalSection]
push 0x28
push 0x404494
call fcn.004026e9
pop ecx
pop ecx
push edi
mov esi, eax
call dword [sym.imp.KERNEL32.dll_LeaveCriticalSection]
mov eax, dword [ebp + 0x20]
mov dword [esi], eax
mov eax, dword [ebp + 0x28]
mov dword [esi + 4], eax
mov eax, dword [ebp + 0x44]
mov dword [esi + 0xc], eax
mov eax, dword [ebp + 0x50]
mov dword [esi + 8], eax
mov eax, dword [ebp + 0x48]
mov dword [esi + 0x10], eax
jmp 0x4025ce
push dword [ebp + 0x20]
call esi
jmp 0x4025dc
cmp dword [ebp + 0x5c], ebx
je 0x4024c8
push dword [ebp + 0x5c]
call esi
cmp dword [ebp + 0x44], ebx
je 0x4024d2
push dword [ebp + 0x44]
call esi
cmp dword [ebp + 0x50], ebx
je 0x4024dc
push dword [ebp + 0x50]
call esi
cmp dword [ebp + 0x58], ebx
je 0x4024e6
push dword [ebp + 0x58]
call esi
cmp dword [ebp + 0x54], ebx
je 0x4024f0
push dword [ebp + 0x54]
call esi
cmp dword [ebp + 0x48], ebx
je 0x4024fa
push dword [ebp + 0x48]
call esi
test byte [ebp + 0x78], 0x78
jne 0x4025e3
cmp dword [ebp + 0x74], ebx
jne 0x40253d
push edi
call sub.MSVCRT.dll_strlen
lea esi, [eax + edi - 1]
cmp esi, edi
pop ecx
jbe 0x40253d
cmp byte [esi], 0x5c
je 0x402522
dec esi
cmp esi, edi
ja 0x402518
cmp esi, edi
jbe 0x40253d
push edi
push dword [ebp + 0x7c]
call sub.MSVCRT.dll_strcpy
mov eax, dword [ebp + 0x7c]
pop ecx
sub esi, edi
pop ecx
mov byte [esi + eax + 1], bl
mov dword [ebp + 0x74], eax
push 0x3c
pop esi
push esi
lea eax, [ebp - 0x60]
push ebx
push eax
call sub.MSVCRT.dll_memset
movzx eax, word [ebp + 0xc]
mov dword [ebp - 0x44], eax
mov eax, dword [ebp + 0x74]
mov dword [ebp - 0x48], eax
mov eax, dword [ebp + 0x70]
mov dword [ebp - 0x4c], eax
add esp, 0xc
lea eax, [ebp - 0x60]
push eax
mov dword [ebp - 0x60], esi
mov dword [ebp - 0x5c], 0x40
mov dword [ebp - 0x54], 0x403006
mov dword [ebp - 0x50], edi
call dword [sym.imp.SHELL32.DLL_ShellExecuteExA]
test eax, eax
je 0x4025e3
test byte [ebp + 0x78], 1
je 0x402594
push 0xffffffffffffffff
push dword [ebp - 0x28]
call dword [sym.imp.KERNEL32.dll_WaitForSingleObject]
cmp dword [ebp + 0x3c], ebx
je 0x4025d3
mov edi, 0x4044a8
push edi
call dword [sym.imp.KERNEL32.dll_EnterCriticalSection]
push 0x28
push 0x404494
call fcn.004026e9
pop ecx
pop ecx
push edi
mov esi, eax
call dword [sym.imp.KERNEL32.dll_LeaveCriticalSection]
mov eax, dword [ebp - 0x28]
or dword [esi + 4], 0xffffffff
mov dword [esi], eax
mov dword [esi + 0xc], ebx
mov dword [esi + 8], ebx
mov dword [esi + 0x10], ebx
mov dword [ebp + 0x40], esi
jmp 0x4025e3
push dword [ebp - 0x28]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov dword [ebp + 0x40], 1
push dword [ebp + 0x7c]
push ebx
push dword [0x404484]
call dword [sym.imp.KERNEL32.dll_HeapFree]
mov eax, dword [ebp + 0x40]
pop edi
pop esi
pop ebx
add ebp, 0x64
leave
ret 0x14