Function at 0x451f00
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 0x451f09
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.00406b90
xor eax, eax
push ebp
push 0x4528d4
push dword fs:[eax]
mov dword fs:[eax], esp
mov byte [ebp - 0x25], 0
cmp dword [ebp - 4], 0
je 0x452832
cmp dword [ebp - 0x24], 0
jne 0x45216d
lea edx, [ebp - 8]
mov eax, esi
mov ecx, dword [eax]
call dword [ecx + 0x1f8]
cmp byte [ebp + 0xc], 0
jne 0x45214f
mov eax, 0xfa
call fcn.00437790
test al, al
je 0x451f80
push 0
call sub.user32.dll_MessageBeep
jmp 0x452832
push 0x7fffffff
mov edi, dword [0x693d34]
mov edi, dword [edi]
mov ecx, 1
mov edx, dword [ebp - 8]
mov eax, 0x4528f8
call edi
test eax, eax
jle 0x451fc9
lea edx, [ebp - 0x94]
mov eax, dword [ebp - 8]
call fcn.00435950
mov edx, dword [ebp - 0x94]
lea eax, [ebp - 8]
call fcn.00406bfc
lea edx, [ebp - 0xc]
mov eax, dword [ebp - 8]
call fcn.0040f884
jmp 0x451fd8
lea ecx, [ebp - 0xc]
mov dl, 1
mov eax, 0x10
call fcn.00437ed4
lea edx, [ebp - 0x98]
mov eax, dword [ebp - 8]
call fcn.0040f844
mov edx, dword [ebp - 0x98]
lea eax, [ebp - 8]
call fcn.00406bfc
lea eax, [ebp - 8]
mov edx, 0x452908
call fcn.00406f0c
lea eax, [ebp - 8]
mov edx, 0x105
call fcn.00406e74
lea edx, [ebp - 0x10]
mov eax, esi
mov ecx, dword [eax]
call dword [ecx + 0x2ac]
lea eax, [ebp - 0x8d]
mov edx, 0x4c
call fcn.0040b084
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 0x4520b4
mov eax, dword [ebp - 8]
call fcn.00406c34
mov dword [ebp - 0x71], eax
mov eax, dword [ebp - 0xc]
call fcn.00406c34
mov dword [ebp - 0x61], eax
mov eax, dword [ebp - 0x10]
call fcn.00406c34
mov dword [ebp - 0x5d], eax
mov eax, 0x45290c
mov dword [ebp - 0x81], eax
mov eax, 0x452928
mov dword [ebp - 0x51], eax
lea eax, [ebp - 0x8d]
push eax
call sub.comdlg32.dll_GetSaveFileNameW
test eax, eax
je 0x452832
lea eax, [ebp - 8]
mov edx, dword [ebp - 0x71]
call fcn.00406d64
jmp 0x452178
lea eax, [ebp - 0x14]
mov edx, dword [ebp - 8]
mov ecx, 0
call fcn.00406dfc
lea eax, [ebp - 0x18]
mov edx, dword [ebp - 0xc]
mov ecx, 0
call fcn.00406dfc
lea eax, [ebp - 0x1c]
mov edx, dword [ebp - 0x10]
mov ecx, 0
call fcn.00406dfc
mov eax, dword [ebp - 0x14]
call fcn.004061f8
mov dword [ebp - 0x71], eax
mov eax, dword [ebp - 0x18]
call fcn.004061f8
mov dword [ebp - 0x61], eax
mov eax, dword [ebp - 0x1c]
call fcn.004061f8
mov dword [ebp - 0x5d], eax
mov eax, 0x452934
mov dword [ebp - 0x81], eax
mov eax, 0x452944
mov dword [ebp - 0x51], eax
lea eax, [ebp - 0x8d]
push eax
call sub.comdlg32.dll_GetSaveFileNameA
test eax, eax
je 0x452832
lea eax, [ebp - 0x9c]
mov edx, dword [ebp - 0x71]
mov ecx, 0
call fcn.00405df0
mov edx, dword [ebp - 0x9c]
lea eax, [ebp - 8]
call fcn.00406dd4
jmp 0x452178
lea edx, [ebp - 0xa0]
mov eax, dword [ebp - 8]
call fcn.00435950
mov edx, dword [ebp - 0xa0]
lea eax, [ebp - 8]
call fcn.00406bfc
jmp 0x452178
lea eax, [ebp - 8]
mov edx, dword [ebp - 0x24]
call fcn.00406bfc
push ebp
mov eax, dword [ebp - 8]
call fcn.00451bac
pop ecx
call sub.kernel32.dll_GetVersion_1
test eax, 0x80000000
jne 0x4521af
push 0
push 0
push 4
push 0
push 0
push 0xc0000000
mov eax, dword [ebp - 8]
call fcn.00406c34
push eax
call sub.kernel32.dll_CreateFileW_1
mov ebx, eax
jmp 0x4521e4
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.00406dfc
mov eax, dword [ebp - 0xa4]
call fcn.004061f8
push eax
call sub.kernel32.dll_CreateFileA
mov ebx, eax
cmp ebx, 0xffffffff
jne 0x452310
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 [0x693d34]
mov edi, dword [edi]
mov ecx, 1
mov eax, 0x4528f8
call edi
test eax, eax
jne 0x452310
push 0x452958
lea edx, [ebp - 0xb4]
xor eax, eax
call fcn.0043585c
mov eax, dword [ebp - 0xb4]
lea edx, [ebp - 0xb0]
call fcn.0040f844
mov eax, dword [ebp - 0xb0]
lea edx, [ebp - 0xac]
call fcn.00435910
push dword [ebp - 0xac]
push 0x4528f8
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.0040705c
push 0x452984
push 0x4529a8
push 0x4529cc
lea edx, [ebp - 8]
mov ecx, 0x4529f8
xor eax, eax
call fcn.00438210
push ebp
mov eax, dword [ebp - 8]
call fcn.00451bac
pop ecx
call sub.kernel32.dll_GetVersion_1
test eax, 0x80000000
jne 0x4522db
push 0
push 0
push 4
push 0
push 0
push 0xc0000000
mov eax, dword [ebp - 8]
call fcn.00406c34
push eax
call sub.kernel32.dll_CreateFileW_1
mov ebx, eax
jmp 0x452310
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.00406dfc
mov eax, dword [ebp - 0xbc]
call fcn.004061f8
push eax
call sub.kernel32.dll_CreateFileA
mov ebx, eax
cmp ebx, 0xffffffff
je 0x452832
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x200]
test al, al
je 0x4527ab
push 0
push ebx
call sub.kernel32.dll_GetFileSize_1
mov dword [ebp - 0x2c], eax
lea eax, [ebp - 8]
xor edx, edx
call fcn.00406bfc
cmp dword [ebp - 0x2c], 0
jbe 0x4523fe
lea ecx, [ebp - 8]
mov edx, 0x452a20
mov eax, dword [ebp - 4]
call fcn.00451920
lea eax, [ebp - 8]
call fcn.00405d1c
call fcn.00406e68
cmp eax, 0x1f
jne 0x4523f4
lea ecx, [ebp - 0xc0]
mov edx, 0x452a48
mov eax, dword [ebp - 4]
call fcn.00451920
cmp dword [ebp - 0xc0], 0
je 0x4523a5
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 0x4523bc
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 0x4523ce
lea eax, [ebp - 8]
xor edx, edx
call fcn.00406bfc
jmp 0x4523fe
sub al, 1
jb 0x4523d6
je 0x4523e5
jmp 0x4523fe
lea eax, [ebp - 8]
mov edx, 9
call fcn.00406e74
jmp 0x4523fe
lea eax, [ebp - 8]
mov edx, 0x14
call fcn.00406e74
jmp 0x4523fe
lea eax, [ebp - 8]
xor edx, edx
call fcn.00406bfc
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x208]
test eax, eax
jbe 0x45241b
mov eax, esi
mov edx, dword [eax]
call dword [edx + 0x208]
cmp eax, dword [ebp - 0x2c]
jb 0x45241f
xor eax, eax
jmp 0x452421
mov al, 1
mov byte [ebp - 0x41], al
cmp byte [ebp - 0x41], 0
jne 0x452434
cmp dword [ebp - 8], 0
je 0x45279d
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 0x45279d
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 0x452794
cmp dword [ebp - 8], 0
je 0x4526fa
lea edx, [ebp - 0x14]
mov eax, dword [ebp - 8]
call fcn.0040f574
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.00405d4c
call fcn.00405ed0
add eax, 2
push eax
lea eax, [ebp - 0xc4]
mov ecx, dword [ebp - 0x14]
mov edx, 0x452a74
call fcn.00405f80
mov eax, dword [ebp - 0xc4]
call fcn.004061f8
mov edi, dword [0x693a30]
mov edi, dword [edi]
mov edx, dword [ebp - 0x40]
pop ecx
call edi
mov dword [ebp - 0x30], eax
cmp dword [ebp - 0x30], 0
jl 0x4526f0
mov eax, dword [ebp - 0x2c]
push eax
push 0
mov eax, dword [ebp - 0x30]
push eax
push 0
mov edi, dword [0x693a30]
mov edi, dword [edi]
mov eax, 0x452a78
mov ecx, 0xb
mov edx, dword [ebp - 0x40]
call edi
mov dword [ebp - 0x34], eax
cmp dword [ebp - 0x34], 0
jge 0x452538
mov eax, dword [ebp - 0x2c]
push eax
push 0
push 0
push 0
mov edi, dword [0x693a30]
mov edi, dword [edi]
mov eax, 0x452a84
mov ecx, 9
mov edx, dword [ebp - 0x40]
call edi
mov dword [ebp - 0x34], eax
jmp 0x45253c
add dword [ebp - 0x34], 2
cmp dword [ebp - 0x34], 0
jl 0x4526f0
mov eax, dword [ebp - 0x2c]
push eax
push 0
mov eax, dword [ebp - 0x30]
push eax
push 0x7fffffff
mov edi, dword [0x693a30]
mov edi, dword [edi]
mov eax, 0x452a78
mov ecx, 0xb
mov edx, dword [ebp - 0x40]
call edi
mov dword [ebp - 0x38], eax
cmp dword [ebp - 0x38], 0
jge 0x45257d
mov eax, dword [ebp - 0x2c]
mov dword [ebp - 0x38], eax
jmp 0x452581
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.00405c74
lea edx, [ebp - 0xc]
mov eax, dword [ebp - 0x18]
call fcn.0040f2e4
mov ecx, 0x452a9c
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00451e8c
test al, al
je 0x4526f0
mov ecx, 0x452ac0
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00451e8c
test al, al
je 0x4526f0
mov ecx, 0x452a48
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00451e8c
test al, al
je 0x4526f0
mov ecx, 0x452aec
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00451e8c
test al, al
je 0x4526f0
lea ecx, [ebp - 0xc8]
mov edx, 0x452aec
mov eax, dword [ebp - 0xc]
call fcn.00451920
cmp dword [ebp - 0xc8], 0
jne 0x45264e
mov ecx, 0x452b08
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00451e8c
test al, al
je 0x4526f0
mov ecx, 0x452b34
mov edx, dword [ebp - 4]
mov eax, dword [ebp - 0xc]
call fcn.00451e8c
test al, al
je 0x4526f0
lea ecx, [ebp - 8]
mov edx, 0x452b64
mov eax, dword [ebp - 0xc]
call fcn.00451920
cmp dword [ebp - 8], 0
je 0x45268e
lea eax, [ebp - 8]
call fcn.00405d1c
call fcn.00406e68
push eax
mov eax, dword [ebp - 8]
call fcn.00406c34
mov edx, eax
mov edi, dword [0x694090]
mov edi, dword [edi]
xor eax, eax
pop ecx
call edi
mov dword [ebp - 0x30], eax
jmp 0x452695
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.0040dffc
mov eax, dword [ebp - 0xcc]
push eax
lea eax, [ebp - 4]
mov ecx, 0x452a20
mov edx, 0x452b64
call fcn.00451d10
mov eax, dword [ebp - 0x38]
cmp eax, dword [ebp - 0x2c]
jae 0x4526e5
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.00403418
mov eax, dword [ebp - 0x38]
sub eax, dword [ebp - 0x34]
sub dword [ebp - 0x2c], eax
jmp 0x4526fa
cmp dword [ebp - 0x30], 0xffffffff
jne 0x45248d
cmp byte [ebp - 0x41], 0
je 0x45278b
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 [0x693a30]
mov edi, dword [edi]
mov eax, 0x452a78
mov ecx, 0xb
mov edx, dword [ebp - 0x40]
call edi
mov dword [ebp - 0x30], eax
cmp dword [ebp - 0x30], 0xffffffff
je 0x45276a
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 0x452715
cmp dword [ebp - 0x30], 0xffffffff
je 0x45278b
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.00403418
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 0x452b7c
push 0x452b7c
lea eax, [ebp - 4]
mov edx, 3
call fcn.0040705c
lea edx, [ebp - 0x14]
mov eax, dword [ebp - 4]
call fcn.0040f574
push 0
lea eax, [ebp - 0x2c]
push eax
lea eax, [ebp - 0x14]
xor edx, edx
call fcn.00405d4c
call fcn.00405ed0
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 0x452832
lea eax, [ebp - 0x20]
call fcn.00408de8
push eax
push 0x452b84
push esi
mov eax, dword [esi]
call dword [eax]
test eax, eax
jne 0x452832
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 0x4528de
lea eax, [ebp - 0xcc]
mov edx, 2
call fcn.00406ba0
lea eax, [ebp - 0xc4]
call fcn.00405b3c
lea eax, [ebp - 0xc0]
call fcn.00406b98
lea eax, [ebp - 0xbc]
call fcn.00405b3c
lea eax, [ebp - 0xb8]
mov edx, 5
call fcn.00406ba0
lea eax, [ebp - 0xa4]
call fcn.00405b3c
lea eax, [ebp - 0xa0]
call fcn.00406b98
lea eax, [ebp - 0x9c]
call fcn.00405b3c
lea eax, [ebp - 0x98]
mov edx, 2
call fcn.00406ba0
lea eax, [ebp - 0x20]
call fcn.00408de8
lea eax, [ebp - 0x1c]
mov edx, 3
call fcn.00405b60
lea eax, [ebp - 0x10]
mov edx, 4
call fcn.00406ba0
ret