Function at 0x451b8c
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 0x451b95
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.004069f0
xor eax, eax
push ebp
push 0x452560
push dword fs:[eax]
mov dword fs:[eax], esp
mov byte [ebp - 0x25], 0
cmp dword [ebp - 4], 0
je 0x4524be
cmp dword [ebp - 0x24], 0
jne 0x451df9
lea edx, [ebp - 8]
mov eax, esi
mov ecx, dword [eax]
call dword [ecx + 0x1f8]
cmp byte [ebp + 0xc], 0
jne 0x451ddb
mov eax, 0xfa
call fcn.0043741c
test al, al
je 0x451c0c
push 0
call sub.user32.dll_MessageBeep
jmp 0x4524be
push 0x7fffffff
mov edi, dword [0x612eec]
mov edi, dword [edi]
mov ecx, 1
mov edx, dword [ebp - 8]
mov eax, 0x452584
call edi
test eax, eax
jle 0x451c55
lea edx, [ebp - 0x94]
mov eax, dword [ebp - 8]
call fcn.004355dc
mov edx, dword [ebp - 0x94]
lea eax, [ebp - 8]
call fcn.00406a5c
lea edx, [ebp - 0xc]
mov eax, dword [ebp - 8]
call fcn.0040f4f0
jmp 0x451c64
lea ecx, [ebp - 0xc]
mov dl, 1
mov eax, 0x10
call fcn.00437b60
lea edx, [ebp - 0x98]
mov eax, dword [ebp - 8]
call fcn.0040f4b0
mov edx, dword [ebp - 0x98]
lea eax, [ebp - 8]
call fcn.00406a5c
lea eax, [ebp - 8]
mov edx, 0x452594
call fcn.00406e1c
lea eax, [ebp - 8]
mov edx, 0x105
call fcn.00406d84
lea edx, [ebp - 0x10]
mov eax, esi
mov ecx, dword [eax]
call dword [ecx + 0x2ac]
lea eax, [ebp - 0x8d]
mov edx, 0x4c
call fcn.0040ad00
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 0x451d40
mov eax, dword [ebp - 8]
call fcn.00406a94
mov dword [ebp - 0x71], eax
mov eax, dword [ebp - 0xc]
call fcn.00406a94
mov dword [ebp - 0x61], eax
mov eax, dword [ebp - 0x10]
call fcn.00406a94
mov dword [ebp - 0x5d], eax
mov eax, 0x452598
mov dword [ebp - 0x81], eax
mov eax, 0x4525b4
mov dword [ebp - 0x51], eax
lea eax, [ebp - 0x8d]
push eax
call sub.comdlg32.dll_GetSaveFileNameW
test eax, eax
je 0x4524be
lea eax, [ebp - 8]
mov edx, dword [ebp - 0x71]
call fcn.00406bb4
jmp 0x451e04
lea eax, [ebp - 0x14]
mov edx, dword [ebp - 8]
mov ecx, 0
call fcn.00406c4c
lea eax, [ebp - 0x18]
mov edx, dword [ebp - 0xc]
mov ecx, 0
call fcn.00406c4c
lea eax, [ebp - 0x1c]
mov edx, dword [ebp - 0x10]
mov ecx, 0
call fcn.00406c4c
mov eax, dword [ebp - 0x14]
call fcn.004061fc
mov dword [ebp - 0x71], eax
mov eax, dword [ebp - 0x18]
call fcn.004061fc
mov dword [ebp - 0x61], eax
mov eax, dword [ebp - 0x1c]
call fcn.004061fc
mov dword [ebp - 0x5d], eax
mov eax, 0x4525c0
mov dword [ebp - 0x81], eax
mov eax, 0x4525d0
mov dword [ebp - 0x51], eax
lea eax, [ebp - 0x8d]
push eax
call sub.comdlg32.dll_GetSaveFileNameA
test eax, eax
je 0x4524be
lea eax, [ebp - 0x9c]
mov edx, dword [ebp - 0x71]
mov ecx, 0
call fcn.00405d20
mov edx, dword [ebp - 0x9c]
lea eax, [ebp - 8]
call fcn.00406c24
jmp 0x451e04
lea edx, [ebp - 0xa0]
mov eax, dword [ebp - 8]
call fcn.004355dc
mov edx, dword [ebp - 0xa0]
lea eax, [ebp - 8]
call fcn.00406a5c
jmp 0x451e04
lea eax, [ebp - 8]
mov edx, dword [ebp - 0x24]
call fcn.00406a5c
push ebp
mov eax, dword [ebp - 8]
call fcn.00451838
pop ecx
call sub.kernel32.dll_GetVersion_1
test eax, 0x80000000
jne 0x451e3b
push 0
push 0
push 4
push 0
push 0
push 0xc0000000
mov eax, dword [ebp - 8]
call fcn.00406a94
push eax
call sub.kernel32.dll_CreateFileW_1
mov ebx, eax
jmp 0x451e70
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.00406c4c
mov eax, dword [ebp - 0xa4]
call fcn.004061fc
push eax
call sub.kernel32.dll_CreateFileA
mov ebx, eax
cmp ebx, 0xffffffff
jne 0x451f9c
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 [0x612eec]
mov edi, dword [edi]
mov ecx, 1
mov eax, 0x452584
call edi
test eax, eax
jne 0x451f9c
push 0x4525e4
lea edx, [ebp - 0xb4]
xor eax, eax
call fcn.004354e8
mov eax, dword [ebp - 0xb4]
lea edx, [ebp - 0xb0]
call fcn.0040f4b0
mov eax, dword [ebp - 0xb0]
lea edx, [ebp - 0xac]
call fcn.0043559c
push dword [ebp - 0xac]
push 0x452584
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.00406fc0
push 0x452610
push 0x452634
push 0x452658
lea edx, [ebp - 8]
mov ecx, 0x452684
xor eax, eax
call fcn.00437e9c
push ebp
mov eax, dword [ebp - 8]
call fcn.00451838
pop ecx
call sub.kernel32.dll_GetVersion_1
test eax, 0x80000000
jne 0x451f67
push 0
push 0
push 4
push 0
push 0
push 0xc0000000
mov eax, dword [ebp - 8]
call fcn.00406a94
push eax
call sub.kernel32.dll_CreateFileW_1
mov ebx, eax
jmp 0x451f9c
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.00406c4c
mov eax, dword [ebp - 0xbc]
call fcn.004061fc
push eax
call sub.kernel32.dll_CreateFileA
mov ebx, eax
cmp ebx, 0xffffffff
je 0x4524be
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x200]
test al, al
je 0x452437
push 0
push ebx
call sub.kernel32.dll_GetFileSize_1
mov dword [ebp - 0x2c], eax
lea eax, [ebp - 8]
xor edx, edx
call fcn.00406a5c
cmp dword [ebp - 0x2c], 0
jbe 0x45208a
lea ecx, [ebp - 8]
mov edx, 0x4526ac
mov eax, dword [ebp - 4]
call fcn.004515ac
lea eax, [ebp - 8]
call fcn.00405c38
call fcn.00406d78
cmp eax, 0x1f
jne 0x452080
lea ecx, [ebp - 0xc0]
mov edx, 0x4526d4
mov eax, dword [ebp - 4]
call fcn.004515ac
cmp dword [ebp - 0xc0], 0
je 0x452031
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 0x452048
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 0x45205a
lea eax, [ebp - 8]
xor edx, edx
call fcn.00406a5c
jmp 0x45208a
sub al, 1
jb 0x452062
je 0x452071
jmp 0x45208a
lea eax, [ebp - 8]
mov edx, 9
call fcn.00406d84
jmp 0x45208a
lea eax, [ebp - 8]
mov edx, 0x14
call fcn.00406d84
jmp 0x45208a
lea eax, [ebp - 8]
xor edx, edx
call fcn.00406a5c
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x208]
test eax, eax
jbe 0x4520a7
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x208]
cmp eax, dword [ebp - 0x2c]
jb 0x4520ab
xor eax, eax
jmp 0x4520ad
mov al, 1
mov byte [ebp - 0x41], al
cmp byte [ebp - 0x41], 0
jne 0x4520c0
cmp dword [ebp - 8], 0
je 0x452429
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 0x452429
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 0x452420
cmp dword [ebp - 8], 0
je 0x452386
lea edx, [ebp - 0x14]
mov eax, dword [ebp - 8]
call fcn.0040f1e0
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.00405c68
call fcn.00405e00
add eax, 2
push eax
lea eax, [ebp - 0xc4]
mov ecx, dword [ebp - 0x14]
mov edx, 0x452700
call fcn.00405efc
mov eax, dword [ebp - 0xc4]
call fcn.004061fc
mov edi, dword [0x612c68]
mov edi, dword [edi]
mov edx, dword [ebp - 0x40]
pop ecx
call edi
mov dword [ebp - 0x30], eax
cmp dword [ebp - 0x30], 0
jl 0x45237c
mov eax, dword [ebp - 0x2c]
push eax
push 0
mov eax, dword [ebp - 0x30]
push eax
push 0
mov edi, dword [0x612c68]
mov edi, dword [edi]
mov eax, 0x452704
mov ecx, 0xb
mov edx, dword [ebp - 0x40]
call edi
mov dword [ebp - 0x34], eax
cmp dword [ebp - 0x34], 0
jge 0x4521c4
mov eax, dword [ebp - 0x2c]
push eax
push 0
push 0
push 0
mov edi, dword [0x612c68]
mov edi, dword [edi]
mov eax, 0x452710
mov ecx, 9
mov edx, dword [ebp - 0x40]
call edi
mov dword [ebp - 0x34], eax
jmp 0x4521c8
add dword [ebp - 0x34], 2
cmp dword [ebp - 0x34], 0
jl 0x45237c
mov eax, dword [ebp - 0x2c]
push eax
push 0
mov eax, dword [ebp - 0x30]
push eax
push 0x7fffffff
mov edi, dword [0x612c68]
mov edi, dword [edi]
mov eax, 0x452704
mov ecx, 0xb
mov edx, dword [ebp - 0x40]
call edi
mov dword [ebp - 0x38], eax
cmp dword [ebp - 0x38], 0
jge 0x452209
mov eax, dword [ebp - 0x2c]
mov dword [ebp - 0x38], eax
jmp 0x45220d
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.00405b74
lea edx, [ebp - 0xc]
mov eax, dword [ebp - 0x18]
call fcn.0040ef50
mov ecx, 0x452728
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00451b18
test al, al
je 0x45237c
mov ecx, 0x45274c
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00451b18
test al, al
je 0x45237c
mov ecx, 0x4526d4
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00451b18
test al, al
je 0x45237c
mov ecx, 0x452778
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00451b18
test al, al
je 0x45237c
lea ecx, [ebp - 0xc8]
mov edx, 0x452778
mov eax, dword [ebp - 0xc]
call fcn.004515ac
cmp dword [ebp - 0xc8], 0
jne 0x4522da
mov ecx, 0x452794
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00451b18
test al, al
je 0x45237c
mov ecx, 0x4527c0
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00451b18
test al, al
je 0x45237c
lea ecx, [ebp - 8]
mov edx, 0x4527f0
mov eax, dword [ebp - 0xc]
call fcn.004515ac
cmp dword [ebp - 8], 0
je 0x45231a
lea eax, [ebp - 8]
call fcn.00405c38
call fcn.00406d78
push eax
mov eax, dword [ebp - 8]
call fcn.00406a94
mov edx, eax
mov edi, dword [0x6131ac]
mov edi, dword [edi]
xor eax, eax
pop ecx
call edi
mov dword [ebp - 0x30], eax
jmp 0x452321
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.0040dc68
mov eax, dword [ebp - 0xcc]
push eax
lea eax, [ebp - 4]
mov ecx, 0x4526ac
mov edx, 0x4527f0
call fcn.0045199c
mov eax, dword [ebp - 0x38]
cmp eax, dword [ebp - 0x2c]
jae 0x452371
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.004032cc
mov eax, dword [ebp - 0x38]
sub eax, dword [ebp - 0x34]
sub dword [ebp - 0x2c], eax
jmp 0x452386
cmp dword [ebp - 0x30], 0xffffffff
jne 0x452119
cmp byte [ebp - 0x41], 0
je 0x452417
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 [0x612c68]
mov edi, dword [edi]
mov eax, 0x452704
mov ecx, 0xb
mov edx, dword [ebp - 0x40]
call edi
mov dword [ebp - 0x30], eax
cmp dword [ebp - 0x30], 0xffffffff
je 0x4523f6
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 0x4523a1
cmp dword [ebp - 0x30], 0xffffffff
je 0x452417
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.004032cc
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 0x452808
push 0x452808
lea eax, [ebp - 4]
mov edx, 3
call fcn.00406fc0
lea edx, [ebp - 0x14]
mov eax, dword [ebp - 4]
call fcn.0040f1e0
push 0
lea eax, [ebp - 0x2c]
push eax
lea eax, [ebp - 0x14]
xor edx, edx
call fcn.00405c68
call fcn.00405e00
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 0x4524be
lea eax, [ebp - 0x20]
call fcn.00408d94
push eax
push 0x452810
push esi
mov eax, dword [esi]
call dword [eax]
test eax, eax
jne 0x4524be
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 0x45256a
lea eax, [ebp - 0xcc]
mov edx, 2
call fcn.00406a00
lea eax, [ebp - 0xc4]
call fcn.00405a3c
lea eax, [ebp - 0xc0]
call fcn.004069f8
lea eax, [ebp - 0xbc]
call fcn.00405a3c
lea eax, [ebp - 0xb8]
mov edx, 5
call fcn.00406a00
lea eax, [ebp - 0xa4]
call fcn.00405a3c
lea eax, [ebp - 0xa0]
call fcn.004069f8
lea eax, [ebp - 0x9c]
call fcn.00405a3c
lea eax, [ebp - 0x98]
mov edx, 2
call fcn.00406a00
lea eax, [ebp - 0x20]
call fcn.00408d94
lea eax, [ebp - 0x1c]
mov edx, 3
call fcn.00405a60
lea eax, [ebp - 0x10]
mov edx, 4
call fcn.00406a00
ret