Function at 0x431020
Capabilities:
Delete file
Get file size
Read file on windows
Write file on windows

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x4d36a8
mov eax, dword fs:[0]
push eax
sub esp, 0x70
mov eax, dword [0x510008]
xor eax, ebp
mov dword [ebp - 0x10], eax
push ebx
push esi
push edi
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov edi, ecx
cmp dword [edi + 0x18], 0
mov ebx, dword [ebp + 8]
mov dword [ebp - 0x6c], ebx
je 0x431060
push 0
call fcn.00431570
mov ecx, dword [edi + 0x9c]
test ecx, ecx
je 0x431074
mov eax, dword [ecx]
push dword [edi + 0xa0]
call dword [eax]
push 4
lea ecx, [ebp - 0x2c]
call fcn.00412190
lea esi, [edi + 4]
mov dword [ebp - 0x2c], esi
test esi, esi
je 0x431095
mov eax, dword [esi]
test eax, eax
je 0x431095
push eax
call dword [sym.imp.KERNEL32.dll_EnterCriticalSection]
mov dword [ebp - 4], 0
lea eax, [ebp - 0x60]
push eax
mov ecx, edi
call fcn.00431920
mov byte [ebp - 4], 1
lea eax, [ebp - 0x48]
push eax
mov ecx, edi
call fcn.00431a20
mov byte [ebp - 4], 2
cmp dword [ebp - 0x50], 0
je 0x4314cc
cmp dword [ebp - 0x38], 0
je 0x4314cc
cmp dword [ebp - 0x34], 8
lea eax, [ebp - 0x48]
push 0
cmovae eax, dword [ebp - 0x48]
push 0x80
push 4
push 0
push 0
push 0xc0000000
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileW]
mov dword [edi + 0x18], eax
cmp eax, 0xffffffff
je 0x4314c3
test eax, eax
je 0x4314c3
cmp dword [ebp - 0x4c], 8
lea eax, [ebp - 0x60]
push 0
cmovae eax, dword [ebp - 0x60]
push 0x80
push 4
push 0
push 0
push 0xc0000000
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileW]
mov dword [ebp - 0x68], eax
cmp eax, 0xffffffff
je 0x43149f
test eax, eax
je 0x43149f
lea ecx, [ebp - 0x2c]
call fcn.00421440
push 0
push dword [ebp - 0x68]
call dword [sym.imp.KERNEL32.dll_GetFileSize]
mov dword [ebp - 0x28], eax
cmp eax, 0x1400000
jbe 0x4311c8
push dword [ebp - 0x68]
mov ebx, dword [sym.imp.KERNEL32.dll_CloseHandle]
call ebx
push 4
lea ecx, [ebp - 0x18]
call fcn.00412190
push esi
lea ecx, [ebp - 0x18]
call fcn.004116c0
mov byte [ebp - 4], 3
mov eax, dword [edi + 0x18]
test eax, eax
je 0x43118e
push eax
call ebx
mov dword [edi + 0x18], 0
cmp dword [ebp - 0x4c], 8
lea eax, [ebp - 0x60]
mov esi, dword [sym.imp.KERNEL32.dll_DeleteFileW]
cmovae eax, dword [ebp - 0x60]
push eax
call esi
cmp dword [ebp - 0x34], 8
lea eax, [ebp - 0x48]
cmovae eax, dword [ebp - 0x48]
push eax
call esi
mov dword [edi + 0x1c], 0
mov byte [ebp - 4], 2
lea ecx, [ebp - 0x18]
call fcn.004116f0
jmp 0x43150a
mov byte [ebp - 0x61], 1
mov byte [ebp - 0x18], 0
test eax, eax
je 0x43135d
xorps xmm0, xmm0
mov dword [ebp - 0x1c], 0
movq qword [ebp - 0x24], xmm0
mov dword [ebp - 0x30], 0
mov dword [ebp - 0x24], 0
mov dword [ebp - 0x20], 0
mov dword [ebp - 0x1c], 0
mov byte [ebp - 4], 4
lea eax, [ebp - 0x62]
push eax
push dword [ebp - 0x28]
lea ecx, [ebp - 0x24]
mov byte [ebp - 0x62], 0
call fcn.00431d00
push 0
lea eax, [ebp - 0x30]
push eax
push dword [ebp - 0x28]
push dword [ebp - 0x24]
push dword [ebp - 0x68]
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x43123b
mov eax, dword [ebp - 0x30]
cmp eax, dword [ebp - 0x28]
je 0x4312b3
mov dword [ebp - 0x78], 0
mov dword [ebp - 0x74], 0
mov dword [ebp - 0x70], 0
mov byte [ebp - 4], 5
lea eax, [ebp - 0x78]
push eax
lea ecx, [ebp - 0x24]
call fcn.00431cc0
mov byte [ebp - 4], 4
mov ecx, dword [ebp - 0x78]
test ecx, ecx
je 0x4312af
mov edx, dword [ebp - 0x70]
mov eax, ecx
sub edx, ecx
cmp edx, 0x1000
jb 0x431290
mov ecx, dword [ecx - 4]
add edx, 0x23
sub eax, ecx
add eax, 0xfffffffc
cmp eax, 0x1f
jbe 0x431290
call dword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
push edx
push ecx
call fcn.004c9d94
add esp, 8
mov dword [ebp - 0x78], 0
mov dword [ebp - 0x74], 0
mov dword [ebp - 0x70], 0
mov byte [ebp - 0x61], 0
mov eax, dword [ebp - 0x24]
cmp eax, dword [ebp - 0x20]
je 0x431304
mov ecx, ebx
call fcn.00431b60
mov eax, dword [ebp - 0x20]
mov dword [ebp - 0x14], 0
sub eax, dword [ebp - 0x24]
je 0x4312ef
push ebx
lea edx, [ebp - 0x14]
lea ecx, [ebp - 0x24]
call fcn.0043c180
add esp, 4
test al, al
je 0x4312ef
mov eax, dword [ebp - 0x20]
sub eax, dword [ebp - 0x24]
cmp dword [ebp - 0x14], eax
jb 0x4312d1
mov eax, dword [ebp - 0x18]
mov ecx, 1
cmp dword [ebx + 4], 0
movzx eax, al
cmove eax, ecx
mov dword [ebp - 0x18], eax
mov byte [ebp - 4], 2
mov ecx, dword [ebp - 0x24]
test ecx, ecx
je 0x431353
mov edx, dword [ebp - 0x1c]
mov eax, ecx
sub edx, ecx
cmp edx, 0x1000
jb 0x431334
mov ecx, dword [ecx - 4]
add edx, 0x23
sub eax, ecx
add eax, 0xfffffffc
cmp eax, 0x1f
jbe 0x431334
call dword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
push edx
push ecx
call fcn.004c9d94
add esp, 8
mov dword [ebp - 0x24], 0
mov dword [ebp - 0x20], 0
mov dword [ebp - 0x1c], 0
cmp byte [ebp - 0x61], 0
je 0x431447
push 4
lea ecx, [ebp - 0x14]
call fcn.00412190
push esi
lea ecx, [ebp - 0x14]
call fcn.004116c0
mov byte [ebp - 4], 6
mov eax, dword [ebp - 0x28]
push 0
push 0
push 0
push dword [edi + 0x18]
mov dword [edi + 0x1c], eax
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
push 0
lea eax, [ebp - 0x30]
mov dword [ebp - 0x30], 0
push eax
push 4
lea eax, [ebp - 0x28]
push eax
push dword [edi + 0x18]
call dword [sym.imp.KERNEL32.dll_WriteFile]
mov ebx, eax
neg ebx
sbb bl, bl
mov byte [ebp - 4], 2
lea ecx, [ebp - 0x14]
call fcn.004116f0
and bl, byte [ebp - 0x61]
je 0x431447
lea ecx, [edi + 0x10]
call fcn.00431b60
cmp dword [edi + 0xc], 0
je 0x4313f1
mov eax, dword [edi + 8]
lea esi, [edi + 8]
mov ecx, dword [ebp - 0x6c]
push eax
push dword [eax]
lea eax, [ebp - 0x6c]
push dword [ecx]
push eax
call fcn.00431e90
push esi
lea ecx, [edi + 0x10]
call fcn.00431b30
lea esi, [edi + 4]
mov ebx, dword [sym.imp.KERNEL32.dll_CloseHandle]
push dword [ebp - 0x68]
call ebx
cmp byte [ebp - 0x18], 0
je 0x43150a
cmp dword [ebp - 0x4c], 8
lea eax, [ebp - 0x60]
cmovae eax, dword [ebp - 0x60]
push eax
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
push 4
lea ecx, [ebp - 0x14]
call fcn.00412190
push esi
lea ecx, [ebp - 0x14]
call fcn.004116c0
mov byte [ebp - 4], 8
mov dword [edi + 0x1c], 0
mov byte [ebp - 4], 2
lea ecx, [ebp - 0x14]
call fcn.004116f0
jmp 0x43150a
push 4
lea ecx, [ebp - 0x14]
call fcn.00412190
push esi
lea ecx, [ebp - 0x14]
call fcn.004116c0
mov byte [ebp - 4], 7
mov eax, dword [edi + 0x18]
mov ebx, dword [sym.imp.KERNEL32.dll_CloseHandle]
test eax, eax
je 0x431475
push eax
call ebx
mov dword [edi + 0x18], 0
cmp dword [ebp - 0x34], 8
lea eax, [ebp - 0x48]
cmovae eax, dword [ebp - 0x48]
push eax
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
mov dword [edi + 0x1c], 0
mov byte [ebp - 4], 2
lea ecx, [ebp - 0x14]
call fcn.004116f0
jmp 0x4313f7
push dword [edi + 0x18]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp dword [ebp - 0x34], 8
lea eax, [ebp - 0x48]
mov dword [edi + 0x18], 0
cmovae eax, dword [ebp - 0x48]
push eax
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
jmp 0x43150a
mov dword [edi + 0x18], 0
jmp 0x43150a
lea esi, [edi + 0x10]
mov ecx, esi
call fcn.00431b60
cmp dword [edi + 0xc], 0
je 0x43150a
mov eax, dword [edi + 8]
add edi, 8
push eax
mov ecx, ebx
push dword [eax]
lea eax, [ebp - 0x6c]
push dword [ebx]
push eax
call fcn.00431e90
cmp esi, edi
je 0x43150a
mov ecx, dword [esi]
mov eax, dword [edi]
mov dword [esi], eax
mov dword [edi], ecx
mov ecx, dword [esi + 4]
mov eax, dword [edi + 4]
mov dword [esi + 4], eax
mov dword [edi + 4], ecx
mov byte [ebp - 4], 1
lea ecx, [ebp - 0x48]
call fcn.00403cf0
mov byte [ebp - 4], 0
lea ecx, [ebp - 0x60]
call fcn.00403cf0
mov dword [ebp - 4], 0xffffffff
mov eax, dword [ebp - 0x2c]
test eax, eax
je 0x431544
mov eax, dword [eax]
test eax, eax
je 0x43153d
push eax
call dword [sym.imp.KERNEL32.dll_LeaveCriticalSection]
mov dword [ebp - 0x2c], 0
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebx
mov ecx, dword [ebp - 0x10]
xor ecx, ebp
call fcn.004c9d53
mov esp, ebp
pop ebp
ret 4