Function at 0x4f20bd
Capabilities:
Query environment variable
Read file on windows
Write file on windows

Disassembly:
push ebp
mov ebp, esp
sub esp, 0xca8
push ebx
push esi
push edi
mov dword [ebp - 0xca4], 1
push 0
push 2
push 3
push 0
push 3
push 0xc0000000
mov eax, 0x505010
add eax, 0x80
push eax
call dword [sym.imp.kernel32.dll_CreateFileA]
mov dword [ebp - 0xc28], eax
cmp dword [ebp - 0xc28], 0xffffffff
jne 0x4f21fa
push 0
call dword [sym.imp.kernel32.dll_GetModuleHandleA]
mov dword [ebp - 0xc28], eax
push 0x400
lea eax, [ebp - 0x414]
push eax
mov eax, dword [ebp - 0xc28]
push eax
call dword [sym.imp.kernel32.dll_GetModuleFileNameA]
mov dword [ebp - 0xc2c], 0
jmp 0x4f213f
inc dword [ebp - 0xc2c]
cmp dword [ebp - 0xc2c], 0x400
jge 0x4f2161
mov eax, dword [ebp - 0xc2c]
movsx eax, byte [eax + ebp - 0x414]
test eax, eax
jne 0x4f215f
jmp 0x4f2161
jmp 0x4f2139
jmp 0x4f2169
dec dword [ebp - 0xc2c]
cmp dword [ebp - 0xc2c], 0
jle 0x4f2189
mov eax, dword [ebp - 0xc2c]
movsx eax, byte [eax + ebp - 0x414]
cmp eax, 0x5c
jne 0x4f2187
jmp 0x4f2189
jmp 0x4f2163
cmp dword [ebp - 0xc2c], 0
je 0x4f21f0
mov eax, dword [ebp - 0xc2c]
mov byte [eax + ebp - 0x413], 0
mov eax, 0x505010
add eax, 0x80
push eax
lea eax, [ebp - 0x414]
push eax
call dword [sym.imp.kernel32.dll_lstrcatA]
lea eax, [ebp - 0x414]
push eax
lea eax, [ebp - 0xc90]
push eax
call dword [sym.imp.kernel32.dll_lstrcpyA]
push 0
push 2
push 3
push 0
push 3
push 0xc0000000
lea eax, [ebp - 0xc90]
push eax
call dword [sym.imp.kernel32.dll_CreateFileA]
mov dword [ebp - 0xc28], eax
jmp 0x4f21fa
mov dword [ebp - 0xc28], 0xffffffff
push 0x400
lea eax, [ebp - 0x414]
push eax
push 0x505f3c
call dword [sym.imp.kernel32.dll_GetEnvironmentVariableA]
mov dword [ebp - 0xc24], 0
mov dword [ebp - 0xc2c], 0
cmp dword [ebp - 0xc28], 0xffffffff
jne 0x4f2380
cmp dword [ebp - 0xca4], 0
jne 0x4f2242
xor eax, eax
jmp 0x4f28ca
jmp 0x4f224a
inc dword [ebp - 0xc2c]
cmp dword [ebp - 0xc2c], 0x400
jge 0x4f227f
mov eax, dword [ebp - 0xc2c]
movsx eax, byte [eax + ebp - 0x414]
test eax, eax
je 0x4f227f
mov eax, dword [ebp - 0xc2c]
movsx eax, byte [eax + ebp - 0x414]
cmp eax, 0x3b
jne 0x4f227d
jmp 0x4f227f
jmp 0x4f2244
mov eax, dword [ebp - 0xc2c]
movsx eax, byte [eax + ebp - 0x414]
test eax, eax
jne 0x4f229b
mov dword [ebp - 0xca4], 0
cmp dword [ebp - 0xc2c], 0x400
jne 0x4f22ae
xor eax, eax
jmp 0x4f28ca
mov eax, dword [ebp - 0xc2c]
mov dword [ebp - 0x14], eax
mov dword [ebp - 0xc94], 0
jmp 0x4f22c9
inc dword [ebp - 0xc94]
mov eax, dword [ebp - 0x14]
sub eax, dword [ebp - 0xc24]
cmp eax, dword [ebp - 0xc94]
jle 0x4f22fc
mov eax, dword [ebp - 0xc24]
add eax, dword [ebp - 0xc94]
mov al, byte [eax + ebp - 0x414]
mov ecx, dword [ebp - 0xc94]
mov byte [ecx + ebp - 0xc90], al
jmp 0x4f22c3
mov eax, dword [ebp - 0xc94]
movsx eax, byte [eax + ebp - 0xc91]
cmp eax, 0x5c
je 0x4f2323
mov eax, dword [ebp - 0xc94]
mov byte [eax + ebp - 0xc90], 0x5c
inc dword [ebp - 0xc94]
mov eax, dword [ebp - 0xc94]
mov byte [eax + ebp - 0xc90], 0
mov eax, 0x505010
add eax, 0x80
push eax
lea eax, [ebp - 0xc90]
push eax
call dword [sym.imp.kernel32.dll_lstrcatA]
push 0
push 2
push 3
push 0
push 3
push 0xc0000000
lea eax, [ebp - 0xc90]
push eax
call dword [sym.imp.kernel32.dll_CreateFileA]
mov dword [ebp - 0xc28], eax
mov eax, dword [ebp - 0x14]
inc eax
mov dword [ebp - 0xc24], eax
inc dword [ebp - 0xc2c]
jmp 0x4f2225
push 0
lea eax, [ebp - 0xc9c]
push eax
push 4
lea eax, [ebp - 0xc20]
push eax
mov eax, dword [ebp - 0xc28]
push eax
call dword [sym.imp.kernel32.dll_ReadFile]
mov eax, dword [0x5052c6]
mov dword [ebp - 0xc98], eax
mov eax, dword [0x50508c]
mov dword [0x5052c6], eax
mov dword [ebp - 0xc2c], 0
cmp dword [ebp - 0xc2c], 4
jge 0x4f243a
call fcn.004f3d0d
movzx eax, ax
cdq
xor eax, edx
sub eax, edx
and eax, 3
xor eax, edx
sub eax, edx
mov byte [ebp - 8], al
mov dword [ebp - 0xc94], 0
jmp 0x4f23f0
inc dword [ebp - 0xc94]
mov eax, dword [ebp - 0xc94]
cmp dword [ebp - 0xc2c], eax
jle 0x4f2417
mov eax, dword [ebp - 0xc94]
xor ecx, ecx
mov cl, byte [eax + ebp - 0xc]
xor eax, eax
mov al, byte [ebp - 8]
cmp ecx, eax
jne 0x4f2415
jmp 0x4f2417
jmp 0x4f23ea
mov eax, dword [ebp - 0xc94]
cmp dword [ebp - 0xc2c], eax
jne 0x4f2438
mov al, byte [ebp - 8]
mov ecx, dword [ebp - 0xc2c]
mov byte [ecx + ebp - 0xc], al
inc dword [ebp - 0xc2c]
jmp 0x4f23be
mov al, byte [ebp - 0xb]
xor ecx, ecx
mov cl, byte [ebp - 0xc]
mov byte [ecx + ebp - 4], al
mov al, byte [ebp - 0xa]
xor ecx, ecx
mov cl, byte [ebp - 0xb]
mov byte [ecx + ebp - 4], al
mov al, byte [ebp - 9]
xor ecx, ecx
mov cl, byte [ebp - 0xa]
mov byte [ecx + ebp - 4], al
mov al, byte [ebp - 0xc]
xor ecx, ecx
mov cl, byte [ebp - 9]
mov byte [ecx + ebp - 4], al
mov dword [ebp - 0xc2c], 0
jmp 0x4f247c
inc dword [ebp - 0xc2c]
cmp dword [ebp - 0xc2c], 4
jge 0x4f249d
mov al, byte [ebp - 0xc2c]
mov ecx, dword [ebp - 0xc2c]
xor edx, edx
mov dl, byte [ecx + ebp - 4]
mov byte [edx + ebp - 0x10], al
jmp 0x4f2476
mov dword [ebp - 0xca8], 0
jmp 0x4f24af
inc dword [ebp - 0xca8]
cmp dword [ebp - 0xca8], 4
jge 0x4f25bf
mov dword [ebp - 0xc2c], 0
cmp dword [ebp - 0xc2c], 0x100
jge 0x4f2568
call fcn.004f3d0d
movzx eax, ax
cdq
xor eax, edx
sub eax, edx
and eax, 0xff
xor eax, edx
sub eax, edx
mov byte [ebp - 8], al
mov dword [ebp - 0xc94], 0
jmp 0x4f2501
inc dword [ebp - 0xc94]
mov eax, dword [ebp - 0xc94]
cmp dword [ebp - 0xc2c], eax
jle 0x4f2534
mov eax, dword [ebp - 0xca8]
shl eax, 8
add eax, dword [ebp - 0xc94]
xor ecx, ecx
mov cl, byte [eax + ebp - 0xc14]
xor eax, eax
mov al, byte [ebp - 8]
cmp ecx, eax
jne 0x4f2532
jmp 0x4f2534
jmp 0x4f24fb
mov eax, dword [ebp - 0xc94]
cmp dword [ebp - 0xc2c], eax
jne 0x4f2563
mov al, byte [ebp - 8]
mov ecx, dword [ebp - 0xc2c]
mov edx, dword [ebp - 0xca8]
shl edx, 8
add ecx, edx
mov byte [ecx + ebp - 0xc14], al
inc dword [ebp - 0xc2c]
jmp 0x4f24c6
mov dword [ebp - 0xc2c], 0
jmp 0x4f257a
inc dword [ebp - 0xc2c]
cmp dword [ebp - 0xc2c], 0x100
jge 0x4f25ba
mov al, byte [ebp - 0xc2c]
mov ecx, dword [ebp - 0xc2c]
mov edx, dword [ebp - 0xca8]
shl edx, 8
add ecx, edx
xor edx, edx
mov dl, byte [ecx + ebp - 0xc14]
mov ecx, dword [ebp - 0xca8]
shl ecx, 8
add edx, ecx
mov byte [edx + ebp - 0x814], al
jmp 0x4f2574
jmp 0x4f24a9
push 0
push 0
push 0x10
mov eax, dword [ebp - 0xc28]
push eax
call dword [sym.imp.kernel32.dll_SetFilePointer]
push 0
lea eax, [ebp - 0xc9c]
push eax
push 4
lea eax, [ebp - 0xca0]
push eax
mov eax, dword [ebp - 0xc28]
push eax
call dword [sym.imp.kernel32.dll_ReadFile]
mov eax, dword [ebp - 0xc20]
xor dword [ebp - 0xca0], eax
lea eax, [ebp - 0xca0]
mov dword [ebp - 0xc18], eax
mov dword [ebp - 0xca8], 0
jmp 0x4f261b
inc dword [ebp - 0xca8]
cmp dword [ebp - 0xca8], 2
jge 0x4f26ee
mov dword [ebp - 0xc2c], 0
jmp 0x4f263a
inc dword [ebp - 0xc2c]
cmp dword [ebp - 0xc2c], 4
jge 0x4f2677
mov eax, dword [ebp - 0xc2c]
mov ecx, dword [ebp - 0xc18]
xor edx, edx
mov dl, byte [ecx + eax]
mov eax, dword [ebp - 0xc2c]
shl eax, 8
add edx, eax
mov al, byte [edx + ebp - 0x814]
mov ecx, dword [ebp - 0xc2c]
mov edx, dword [ebp - 0xc18]
mov byte [edx + ecx], al
jmp 0x4f2634
mov dword [ebp - 0xc2c], 0
jmp 0x4f2689
inc dword [ebp - 0xc2c]
cmp dword [ebp - 0xc2c], 4
jge 0x4f26b3
mov eax, dword [ebp - 0xc2c]
mov ecx, dword [ebp - 0xc18]
mov al, byte [ecx + eax]
mov ecx, dword [ebp - 0xc2c]
xor edx, edx
mov dl, byte [ecx + ebp - 0x10]
mov byte [edx + ebp - 0xc], al
jmp 0x4f2683
mov dword [ebp - 0xc2c], 0
jmp 0x4f26c5
inc dword [ebp - 0xc2c]
cmp dword [ebp - 0xc2c], 4
jge 0x4f26e9
mov eax, dword [ebp - 0xc2c]
mov al, byte [eax + ebp - 0xc]
mov ecx, dword [ebp - 0xc2c]
mov edx, dword [ebp - 0xc18]
mov byte [edx + ecx], al
jmp 0x4f26bf
jmp 0x4f2615
mov eax, dword [ebp + 0x14]
push eax
mov eax, dword [ebp + 0x10]
push eax
mov eax, dword [ebp + 0xc]
push eax
mov eax, dword [ebp + 8]
push eax
call fcn.004f2025
add esp, 0x10
mov dword [ebp - 0xc1c], eax
mov eax, dword [ebp - 0xca0]
cmp dword [ebp - 0xc1c], eax
jae 0x4f272e
mov eax, dword [ebp - 0xc28]
push eax
call dword [sym.imp.kernel32.dll_CloseHandle]
xor eax, eax
jmp 0x4f28ca
lea eax, [ebp - 0xc1c]
mov dword [ebp - 0xc18], eax
mov dword [ebp - 0xca8], 0
jmp 0x4f274c
inc dword [ebp - 0xca8]
cmp dword [ebp - 0xca8], 2
jge 0x4f2802
mov dword [ebp - 0xc2c], 0
jmp 0x4f276b
inc dword [ebp - 0xc2c]
cmp dword [ebp - 0xc2c], 4
jge 0x4f2795
mov eax, dword [ebp - 0xc2c]
mov ecx, dword [ebp - 0xc18]
mov al, byte [ecx + eax]
mov ecx, dword [ebp - 0xc2c]
xor edx, edx
mov dl, byte [ecx + ebp - 4]
mov byte [edx + ebp - 0xc], al
jmp 0x4f2765
mov dword [ebp - 0xc2c], 0
jmp 0x4f27a7
inc dword [ebp - 0xc2c]
cmp dword [ebp - 0xc2c], 4
jge 0x4f27fd
mov eax, dword [ebp - 0xc2c]
mov al, byte [eax + ebp - 0xc]
mov ecx, dword [ebp - 0xc2c]
mov edx, dword [ebp - 0xc18]
mov byte [edx + ecx], al
mov eax, dword [ebp - 0xc2c]
mov ecx, dword [ebp - 0xc18]
xor edx, edx
mov dl, byte [ecx + eax]
mov eax, dword [ebp - 0xc2c]
shl eax, 8
add edx, eax
mov al, byte [edx + ebp - 0xc14]
mov ecx, dword [ebp - 0xc2c]
mov edx, dword [ebp - 0xc18]
mov byte [edx + ecx], al
jmp 0x4f27a1
jmp 0x4f2746
mov eax, dword [ebp - 0xc1c]
mov dword [0x5052c6], eax
push 0
push 0
push 0
mov eax, dword [ebp - 0xc28]
push eax
call dword [sym.imp.kernel32.dll_SetFilePointer]
mov dword [ebp - 0xca8], 0
jmp 0x4f2832
inc dword [ebp - 0xca8]
cmp dword [ebp - 0xca8], 0x14
jge 0x4f28ab
cmp dword [ebp - 0xca8], 0x10
jge 0x4f287a
call fcn.004f3d0d
mov byte [ebp - 8], al
cmp dword [ebp - 0xca8], 4
jge 0x4f2878
mov eax, dword [ebp - 0xca8]
mov ecx, dword [ebp - 0xc18]
xor edx, edx
mov dl, byte [ecx + eax]
xor dl, byte [ebp - 8]
mov eax, dword [ebp - 0xca8]
mov ecx, dword [ebp - 0xc18]
mov byte [ecx + eax], dl
jmp 0x4f288d
mov eax, dword [ebp - 0xca8]
mov ecx, dword [ebp - 0xc18]
mov al, byte [ecx + eax - 0x10]
mov byte [ebp - 8], al
push 0
lea eax, [ebp - 0xc9c]
push eax
push 1
lea eax, [ebp - 8]
push eax
mov eax, dword [ebp - 0xc28]
push eax
call dword [sym.imp.kernel32.dll_WriteFile]
jmp 0x4f282c
mov eax, dword [ebp - 0xc98]
mov dword [0x5052c6], eax
mov eax, dword [ebp - 0xc28]
push eax
call dword [sym.imp.kernel32.dll_CloseHandle]
mov eax, 1
jmp 0x4f28ca
pop edi
pop esi
pop ebx
leave
ret