Function at 0x4507b8
Capabilities:
Get file size
Write file on windows

Disassembly:
push ebp
mov ebp, esp
push ecx
mov ecx, 0x19
push 0
push 0
dec ecx
jne 0x4507c1
xchg dword [ebp - 4], ecx
push ebx
push esi
push edi
mov ebx, ecx
mov dword [ebp - 4], edx
mov dword [ebp - 0x24], eax
mov esi, dword [ebp + 8]
mov eax, dword [ebp - 4]
call fcn.004062a4
xor eax, eax
push ebp
push 0x45118c
push dword fs:[eax]
mov dword fs:[eax], esp
mov byte [ebp - 0x25], 0
cmp dword [ebp - 4], 0
je 0x4510ea
cmp dword [ebp - 0x24], 0
jne 0x450a25
lea edx, [ebp - 8]
mov eax, esi
mov ecx, dword [eax]
call dword [ecx + 0x1f8]
cmp byte [ebp + 0xc], 0
jne 0x450a07
mov eax, 0xfa
call fcn.00436048
test al, al
je 0x450838
push 0
call sub.user32.dll_MessageBeep
jmp 0x4510ea
push 0x7fffffff
mov edi, dword [0x550fbc]
mov edi, dword [edi]
mov ecx, 1
mov edx, dword [ebp - 8]
mov eax, 0x4511b0
call edi
test eax, eax
jle 0x450881
lea edx, [ebp - 0x94]
mov eax, dword [ebp - 8]
call fcn.00434208
mov edx, dword [ebp - 0x94]
lea eax, [ebp - 8]
call fcn.00406310
lea edx, [ebp - 0xc]
mov eax, dword [ebp - 8]
call fcn.0040e740
jmp 0x450890
lea ecx, [ebp - 0xc]
mov dl, 1
mov eax, 0x10
call fcn.0043678c
lea edx, [ebp - 0x98]
mov eax, dword [ebp - 8]
call fcn.0040e700
mov edx, dword [ebp - 0x98]
lea eax, [ebp - 8]
call fcn.00406310
lea eax, [ebp - 8]
mov edx, 0x4511c0
call fcn.00406610
lea eax, [ebp - 8]
mov edx, 0x105
call fcn.00406578
lea edx, [ebp - 0x10]
mov eax, esi
mov ecx, dword [eax]
call dword [ecx + 0x2ac]
lea eax, [ebp - 0x8d]
mov edx, 0x4c
call fcn.00409f50
mov dword [ebp - 0x8d], 0x4c
mov dword [ebp - 0x89], ebx
mov dword [ebp - 0x75], 1
mov dword [ebp - 0x6d], 0x104
mov dword [ebp - 0x59], 0x8004
call sub.kernel32.dll_GetVersion_1
test eax, 0x80000000
jne 0x45096c
mov eax, dword [ebp - 8]
call fcn.00406348
mov dword [ebp - 0x71], eax
mov eax, dword [ebp - 0xc]
call fcn.00406348
mov dword [ebp - 0x61], eax
mov eax, dword [ebp - 0x10]
call fcn.00406348
mov dword [ebp - 0x5d], eax
mov eax, 0x4511c4
mov dword [ebp - 0x81], eax
mov eax, 0x4511e0
mov dword [ebp - 0x51], eax
lea eax, [ebp - 0x8d]
push eax
call sub.comdlg32.dll_GetSaveFileNameW
test eax, eax
je 0x4510ea
lea eax, [ebp - 8]
mov edx, dword [ebp - 0x71]
call fcn.00406468
jmp 0x450a30
lea eax, [ebp - 0x14]
mov edx, dword [ebp - 8]
mov ecx, 0
call fcn.00406500
lea eax, [ebp - 0x18]
mov edx, dword [ebp - 0xc]
mov ecx, 0
call fcn.00406500
lea eax, [ebp - 0x1c]
mov edx, dword [ebp - 0x10]
mov ecx, 0
call fcn.00406500
mov eax, dword [ebp - 0x14]
call fcn.00405b78
mov dword [ebp - 0x71], eax
mov eax, dword [ebp - 0x18]
call fcn.00405b78
mov dword [ebp - 0x61], eax
mov eax, dword [ebp - 0x1c]
call fcn.00405b78
mov dword [ebp - 0x5d], eax
mov eax, 0x4511ec
mov dword [ebp - 0x81], eax
mov eax, 0x4511fc
mov dword [ebp - 0x51], eax
lea eax, [ebp - 0x8d]
push eax
call sub.comdlg32.dll_GetSaveFileNameA
test eax, eax
je 0x4510ea
lea eax, [ebp - 0x9c]
mov edx, dword [ebp - 0x71]
mov ecx, 0
call fcn.00405770
mov edx, dword [ebp - 0x9c]
lea eax, [ebp - 8]
call fcn.004064d8
jmp 0x450a30
lea edx, [ebp - 0xa0]
mov eax, dword [ebp - 8]
call fcn.00434208
mov edx, dword [ebp - 0xa0]
lea eax, [ebp - 8]
call fcn.00406310
jmp 0x450a30
lea eax, [ebp - 8]
mov edx, dword [ebp - 0x24]
call fcn.00406310
push ebp
mov eax, dword [ebp - 8]
call fcn.00450464
pop ecx
call sub.kernel32.dll_GetVersion_1
test eax, 0x80000000
jne 0x450a67
push 0
push 0
push 4
push 0
push 0
push 0xc0000000
mov eax, dword [ebp - 8]
call fcn.00406348
push eax
call sub.kernel32.dll_CreateFileW_1
mov ebx, eax
jmp 0x450a9c
push 0
push 0
push 4
push 0
push 0
push 0xc0000000
lea eax, [ebp - 0xa4]
mov edx, dword [ebp - 8]
mov ecx, 0
call fcn.00406500
mov eax, dword [ebp - 0xa4]
call fcn.00405b78
push eax
call sub.kernel32.dll_CreateFileA
mov ebx, eax
cmp ebx, 0xffffffff
jne 0x450bc8
push 0x7fffffff
lea edx, [ebp - 0xa8]
mov eax, esi
mov ecx, dword [eax]
call dword [ecx + 0x1f8]
mov edx, dword [ebp - 0xa8]
mov edi, dword [0x550fbc]
mov edi, dword [edi]
mov ecx, 1
mov eax, 0x4511b0
call edi
test eax, eax
jne 0x450bc8
push 0x451210
lea edx, [ebp - 0xb4]
xor eax, eax
call fcn.00434114
mov eax, dword [ebp - 0xb4]
lea edx, [ebp - 0xb0]
call fcn.0040e700
mov eax, dword [ebp - 0xb0]
lea edx, [ebp - 0xac]
call fcn.004341c8
push dword [ebp - 0xac]
push 0x4511b0
lea edx, [ebp - 0xb8]
mov eax, esi
mov ecx, dword [eax]
call dword [ecx + 0x1f8]
push dword [ebp - 0xb8]
lea eax, [ebp - 8]
mov edx, 4
call fcn.00406760
push 0x45123c
push 0x451260
push 0x451284
lea edx, [ebp - 8]
mov ecx, 0x4512b0
xor eax, eax
call fcn.00436ac8
push ebp
mov eax, dword [ebp - 8]
call fcn.00450464
pop ecx
call sub.kernel32.dll_GetVersion_1
test eax, 0x80000000
jne 0x450b93
push 0
push 0
push 4
push 0
push 0
push 0xc0000000
mov eax, dword [ebp - 8]
call fcn.00406348
push eax
call sub.kernel32.dll_CreateFileW_1
mov ebx, eax
jmp 0x450bc8
push 0
push 0
push 4
push 0
push 0
push 0xc0000000
lea eax, [ebp - 0xbc]
mov edx, dword [ebp - 8]
mov ecx, 0
call fcn.00406500
mov eax, dword [ebp - 0xbc]
call fcn.00405b78
push eax
call sub.kernel32.dll_CreateFileA
mov ebx, eax
cmp ebx, 0xffffffff
je 0x4510ea
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x200]
test al, al
je 0x451063
push 0
push ebx
call sub.kernel32.dll_GetFileSize_1
mov dword [ebp - 0x2c], eax
lea eax, [ebp - 8]
xor edx, edx
call fcn.00406310
cmp dword [ebp - 0x2c], 0
jbe 0x450cb6
lea ecx, [ebp - 8]
mov edx, 0x4512d8
mov eax, dword [ebp - 4]
call fcn.004501d8
lea eax, [ebp - 8]
call fcn.0040569c
call fcn.0040656c
cmp eax, 0x1f
jne 0x450cac
lea ecx, [ebp - 0xc0]
mov edx, 0x451300
mov eax, dword [ebp - 4]
call fcn.004501d8
cmp dword [ebp - 0xc0], 0
je 0x450c5d
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x210]
mov byte [ebp - 0x41], al
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x220]
jmp 0x450c74
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x218]
mov byte [ebp - 0x41], al
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x228]
cmp byte [ebp - 0x41], 0
jne 0x450c86
lea eax, [ebp - 8]
xor edx, edx
call fcn.00406310
jmp 0x450cb6
sub al, 1
jb 0x450c8e
je 0x450c9d
jmp 0x450cb6
lea eax, [ebp - 8]
mov edx, 9
call fcn.00406578
jmp 0x450cb6
lea eax, [ebp - 8]
mov edx, 0x14
call fcn.00406578
jmp 0x450cb6
lea eax, [ebp - 8]
xor edx, edx
call fcn.00406310
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x208]
test eax, eax
jbe 0x450cd3
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x208]
cmp eax, dword [ebp - 0x2c]
jb 0x450cd7
xor eax, eax
jmp 0x450cd9
mov al, 1
mov byte [ebp - 0x41], al
cmp byte [ebp - 0x41], 0
jne 0x450cec
cmp dword [ebp - 8], 0
je 0x451055
push 0
push 0
push 0
push 4
push 0
push ebx
call sub.kernel32.dll_CreateFileMappingW
mov dword [ebp - 0x3c], eax
cmp dword [ebp - 0x3c], 0
je 0x451055
push 0
push 0
push 0
push 0xf001f
mov eax, dword [ebp - 0x3c]
push eax
call sub.kernel32.dll_MapViewOfFile
mov dword [ebp - 0x40], eax
cmp dword [ebp - 0x40], 0
je 0x45104c
cmp dword [ebp - 8], 0
je 0x450fb2
lea edx, [ebp - 0x14]
mov eax, dword [ebp - 8]
call fcn.0040e430
mov eax, dword [ebp - 0x2c]
mov dword [ebp - 0x30], eax
mov eax, dword [ebp - 0x2c]
push eax
push 0
mov eax, dword [ebp - 0x30]
dec eax
push eax
push 0
lea eax, [ebp - 0x14]
xor edx, edx
call fcn.004056cc
call fcn.00405850
add eax, 2
push eax
lea eax, [ebp - 0xc4]
mov ecx, dword [ebp - 0x14]
mov edx, 0x45132c
call fcn.00405900
mov eax, dword [ebp - 0xc4]
call fcn.00405b78
mov edi, dword [0x550dbc]
mov edi, dword [edi]
mov edx, dword [ebp - 0x40]
pop ecx
call edi
mov dword [ebp - 0x30], eax
cmp dword [ebp - 0x30], 0
jl 0x450fa8
mov eax, dword [ebp - 0x2c]
push eax
push 0
mov eax, dword [ebp - 0x30]
push eax
push 0
mov edi, dword [0x550dbc]
mov edi, dword [edi]
mov eax, 0x451330
mov ecx, 0xb
mov edx, dword [ebp - 0x40]
call edi
mov dword [ebp - 0x34], eax
cmp dword [ebp - 0x34], 0
jge 0x450df0
mov eax, dword [ebp - 0x2c]
push eax
push 0
push 0
push 0
mov edi, dword [0x550dbc]
mov edi, dword [edi]
mov eax, 0x45133c
mov ecx, 9
mov edx, dword [ebp - 0x40]
call edi
mov dword [ebp - 0x34], eax
jmp 0x450df4
add dword [ebp - 0x34], 2
cmp dword [ebp - 0x34], 0
jl 0x450fa8
mov eax, dword [ebp - 0x2c]
push eax
push 0
mov eax, dword [ebp - 0x30]
push eax
push 0x7fffffff
mov edi, dword [0x550dbc]
mov edi, dword [edi]
mov eax, 0x451330
mov ecx, 0xb
mov edx, dword [ebp - 0x40]
call edi
mov dword [ebp - 0x38], eax
cmp dword [ebp - 0x38], 0
jge 0x450e35
mov eax, dword [ebp - 0x2c]
mov dword [ebp - 0x38], eax
jmp 0x450e39
add dword [ebp - 0x38], 2
push 0
mov ecx, dword [ebp - 0x38]
sub ecx, dword [ebp - 0x34]
mov edx, dword [ebp - 0x40]
add edx, dword [ebp - 0x34]
lea eax, [ebp - 0x18]
call fcn.004055f4
lea edx, [ebp - 0xc]
mov eax, dword [ebp - 0x18]
call fcn.0040e1a0
mov ecx, 0x451354
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00450744
test al, al
je 0x450fa8
mov ecx, 0x451378
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00450744
test al, al
je 0x450fa8
mov ecx, 0x451300
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00450744
test al, al
je 0x450fa8
mov ecx, 0x4513a4
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00450744
test al, al
je 0x450fa8
lea ecx, [ebp - 0xc8]
mov edx, 0x4513a4
mov eax, dword [ebp - 0xc]
call fcn.004501d8
cmp dword [ebp - 0xc8], 0
jne 0x450f06
mov ecx, 0x4513c0
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00450744
test al, al
je 0x450fa8
mov ecx, 0x4513ec
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00450744
test al, al
je 0x450fa8
lea ecx, [ebp - 8]
mov edx, 0x45141c
mov eax, dword [ebp - 0xc]
call fcn.004501d8
cmp dword [ebp - 8], 0
je 0x450f46
lea eax, [ebp - 8]
call fcn.0040569c
call fcn.0040656c
push eax
mov eax, dword [ebp - 8]
call fcn.00406348
mov edx, eax
mov edi, dword [0x5511c0]
mov edi, dword [edi]
xor eax, eax
pop ecx
call edi
mov dword [ebp - 0x30], eax
jmp 0x450f4d
mov dword [ebp - 0x30], 1
lea eax, [ebp - 0xcc]
push eax
mov eax, dword [ebp - 0x30]
inc eax
mov cx, 0x30
mov edx, 1
call fcn.0040ceb8
mov eax, dword [ebp - 0xcc]
push eax
lea eax, [ebp - 4]
mov ecx, 0x4512d8
mov edx, 0x45141c
call fcn.004505c8
mov eax, dword [ebp - 0x38]
cmp eax, dword [ebp - 0x2c]
jae 0x450f9d
mov ecx, dword [ebp - 0x2c]
sub ecx, eax
mov edx, dword [ebp - 0x40]
add edx, dword [ebp - 0x34]
mov eax, dword [ebp - 0x40]
add eax, dword [ebp - 0x38]
call fcn.00403230
mov eax, dword [ebp - 0x38]
sub eax, dword [ebp - 0x34]
sub dword [ebp - 0x2c], eax
jmp 0x450fb2
cmp dword [ebp - 0x30], 0xffffffff
jne 0x450d45
cmp byte [ebp - 0x41], 0
je 0x451043
push 0
push 0
push 0
push ebx
call sub.kernel32.dll_SetFilePointer_1
xor eax, eax
mov dword [ebp - 0x30], eax
mov eax, dword [ebp - 0x2c]
push eax
push 0
mov eax, dword [ebp - 0x30]
inc eax
push eax
push 0x7fffffff
mov edi, dword [0x550dbc]
mov edi, dword [edi]
mov eax, 0x451330
mov ecx, 0xb
mov edx, dword [ebp - 0x40]
call edi
mov dword [ebp - 0x30], eax
cmp dword [ebp - 0x30], 0xffffffff
je 0x451022
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x208]
mov edi, eax
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x208]
shr eax, 2
sub edi, eax
mov eax, dword [ebp - 0x2c]
sub eax, dword [ebp - 0x30]
cmp edi, eax
jbe 0x450fcd
cmp dword [ebp - 0x30], 0xffffffff
je 0x451043
add dword [ebp - 0x30], 2
mov eax, dword [ebp - 0x30]
sub dword [ebp - 0x2c], eax
mov edx, dword [ebp - 0x40]
mov eax, dword [ebp - 0x40]
add eax, dword [ebp - 0x30]
mov ecx, dword [ebp - 0x2c]
call fcn.00403230
mov eax, dword [ebp - 0x40]
push eax
call sub.kernel32.dll_UnmapViewOfFile
mov eax, dword [ebp - 0x3c]
push eax
call sub.kernel32.dll_CloseHandle_1
push 0
push 0
mov eax, dword [ebp - 0x2c]
push eax
push ebx
call sub.kernel32.dll_SetFilePointer_1
push dword [ebp - 4]
push 0x451434
push 0x451434
lea eax, [ebp - 4]
mov edx, 3
call fcn.00406760
lea edx, [ebp - 0x14]
mov eax, dword [ebp - 4]
call fcn.0040e430
push 0
lea eax, [ebp - 0x2c]
push eax
lea eax, [ebp - 0x14]
xor edx, edx
call fcn.004056cc
call fcn.00405850
push eax
mov eax, dword [ebp - 0x14]
push eax
push ebx
call sub.kernel32.dll_WriteFile_1
cmp eax, 1
sbb eax, eax
inc eax
mov byte [ebp - 0x25], al
push ebx
call sub.kernel32.dll_SetEndOfFile_1
push ebx
call sub.kernel32.dll_CloseHandle_1
cmp dword [ebp - 0x24], 0
sete al
and al, byte [ebp + 0xc]
je 0x4510ea
lea eax, [ebp - 0x20]
call fcn.004082f8
push eax
push 0x45143c
push esi
mov eax, dword [esi]
call dword [eax]
test eax, eax
jne 0x4510ea
mov dl, 1
mov eax, dword [ebp - 0x20]
mov ecx, dword [eax]
call dword [ecx + 0x24]
xor eax, eax
pop edx
pop ecx
pop ecx
mov dword fs:[eax], edx
push 0x451196
lea eax, [ebp - 0xcc]
mov edx, 2
call fcn.004062b4
lea eax, [ebp - 0xc4]
call fcn.004054bc
lea eax, [ebp - 0xc0]
call fcn.004062ac
lea eax, [ebp - 0xbc]
call fcn.004054bc
lea eax, [ebp - 0xb8]
mov edx, 5
call fcn.004062b4
lea eax, [ebp - 0xa4]
call fcn.004054bc
lea eax, [ebp - 0xa0]
call fcn.004062ac
lea eax, [ebp - 0x9c]
call fcn.004054bc
lea eax, [ebp - 0x98]
mov edx, 2
call fcn.004062b4
lea eax, [ebp - 0x20]
call fcn.004082f8
lea eax, [ebp - 0x1c]
mov edx, 3
call fcn.004054e0
lea eax, [ebp - 0x10]
mov edx, 4
call fcn.004062b4
ret