Function at 0x4030a0
Capabilities:
Access peb ldr_data
Check for peb beingdebugged flag
Get file size
Get graphical window text
Get kernel32 base address
Get process heap flags
Get process heap force flags
Read file on windows

Disassembly:
push ebp
mov ebp, esp
push edi
push esi
push ebx
sub esp, 0x44
mov eax, dword [ebp + 8]
mov esi, dword [ebp + 0xc]
mov dword [ebp - 0x20], eax
mov edi, eax
call sym._DoCloseFile
test eax, eax
jne 0x4030c8
lea esp, [ebp - 0xc]
pop ebx
pop esi
pop edi
pop ebp
ret
mov dword [esp + 0x18], 0
mov dword [esp + 0x14], pe_nt_image_headers32
mov dword [esp + 0x10], 3
mov dword [esp + 0xc], 0
mov dword [esp + 8], 3
mov dword [esp + 4], 0x80000000
mov dword [esp], edi
call dword [sym.imp.kernel32.dll_CreateFileW]
sub esp, 0x1c
mov ebx, eax
cmp eax, 0xffffffff
je 0x403400
mov dword [esp + 4], 0
mov dword [esp], eax
call dword [sym.imp.kernel32.dll_GetFileSize]
sub esp, 8
mov ecx, eax
cmp eax, 0xffffffff
je 0x403430
lea eax, [eax + 2]
mov dword [esp + 4], 0
mov edx, dword fs:[0x18]
mov dword [esp + 8], eax
mov eax, dword [edx + 0x30]
mov dword [ebp - 0x24], ecx
mov eax, dword [eax + 0x18]
mov dword [ebp - 0x28], edx
mov dword [esp], eax
mov eax, dword [sym.imp.kernel32.dll_HeapAlloc]
mov dword [ebp - 0x2c], eax
call eax
mov ecx, dword [ebp - 0x24]
sub esp, 0xc
test eax, eax
mov edi, eax
je 0x403430
lea eax, [ebp - 0x1c]
mov dword [esp + 0x10], 0
mov dword [esp + 0xc], eax
mov dword [esp + 8], ecx
mov dword [esp + 4], edi
mov dword [esp], ebx
call dword [sym.imp.kernel32.dll_ReadFile]
sub esp, 0x14
mov dword [esp], ebx
test eax, eax
je 0x4033c8
call dword [sym.imp.kernel32.dll_CloseHandle]
mov ebx, dword [ebp - 0x1c]
sub esp, 4
cmp esi, 0xffffffff
je 0x403528
cmp ebx, 1
jbe 0x4034f8
lea eax, [esi - 1]
cmp eax, 1
jbe 0x403580
cmp esi, 3
mov ecx, 0xfde9
mov eax, 0
cmove eax, ecx
mov dword [ebp - 0x24], eax
mov eax, dword [ebp - 0x24]
mov dword [esp + 0x14], 0
mov dword [esp + 0x10], 0
mov dword [esp], eax
mov eax, dword [sym.imp.kernel32.dll_MultiByteToWideChar]
mov dword [esp + 0xc], ebx
mov dword [esp + 8], edi
mov dword [esp + 4], 0
mov dword [ebp - 0x30], eax
call eax
sub esp, 0x18
mov ecx, eax
lea eax, [eax + eax + 2]
mov edx, dword fs:[0x18]
mov dword [esp + 8], eax
mov dword [esp + 4], 0
mov eax, dword [edx + 0x30]
mov dword [ebp - 0x34], ecx
mov eax, dword [eax + 0x18]
mov dword [ebp - 0x28], edx
mov dword [esp], eax
mov eax, dword [ebp - 0x2c]
call eax
mov ecx, dword [ebp - 0x34]
sub esp, 0xc
test eax, eax
je 0x403628
mov dword [esp + 0x10], eax
mov dword [ebp - 0x2c], eax
mov eax, dword [ebp - 0x24]
mov dword [esp + 0x14], ecx
mov dword [ebp - 0x34], ecx
mov dword [esp + 0xc], ebx
mov dword [esp + 8], edi
mov dword [esp], eax
mov eax, dword [ebp - 0x30]
mov dword [esp + 4], 0
call eax
mov eax, dword [ebp - 0x28]
sub esp, 0x18
mov dword [esp + 8], edi
mov dword [esp + 4], 0
mov eax, dword [eax + 0x30]
mov eax, dword [eax + 0x18]
mov dword [esp], eax
mov eax, dword [sym.imp.kernel32.dll_HeapFree]
mov dword [ebp - 0x28], eax
call eax
lea eax, [ebp - 0x18]
mov ecx, dword [ebp - 0x34]
mov edx, dword [ebp - 0x2c]
mov dword [ebp - 0x24], eax
sub esp, 0xc
mov ebx, ecx
mov edi, edx
lea ebx, [edi + ebx*2]
test ecx, ecx
jle 0x4035e0
mov eax, edi
lea ecx, [edi + ecx*2]
lea esi, [esi]
nop
cmp word [eax], 0
jne 0x4032ce
mov edx, 0x20
mov word [eax], dx
add eax, 2
cmp eax, ecx
jne 0x4032c0
xor edx, edx
mov word [ebx], dx
cmp word [edi], 0xfeff
je 0x4035b0
mov eax, dword [0x40800c]
mov dword [esp + 4], edi
mov dword [esp], eax
call dword [sym.imp.user32.dll_SetWindowTextW]
sub esp, 8
mov dword [esp + 8], edi
mov dword [esp + 4], 0
mov eax, dword fs:[0x18]
mov eax, dword [eax + 0x30]
mov eax, dword [eax + 0x18]
mov dword [esp], eax
mov eax, dword [ebp - 0x28]
call eax
mov eax, dword [0x40800c]
mov ebx, dword [sym.imp.user32.dll_SendMessageW]
sub esp, 0xc
mov dword [esp + 0xc], 0
mov dword [esp + 8], 0
mov dword [esp + 4], 0xb9
mov dword [esp], eax
call ebx
mov eax, dword [0x40800c]
sub esp, 0x10
mov dword [esp + 0xc], 0
mov dword [esp + 8], 0
mov dword [esp + 4], 0xcd
mov dword [esp], eax
call ebx
mov eax, dword [0x40800c]
sub esp, 0x10
mov dword [esp], eax
call dword [sym.imp.user32.dll_SetFocus]
mov eax, dword [ebp - 0x24]
sub esp, 4
mov dword [esp + 4], eax
mov eax, dword [0x40800c]
mov dword [esp + 8], 5
mov dword [esp], eax
call dword [sym.imp.user32.dll_GetWindowTextW]
sub esp, 0xc
test eax, eax
jne 0x403450
mov eax, dword [ebp - 0x20]
mov dword [esp + 4], esi
mov dword [esp], eax
call sym._SetFileNameAndEncoding
call sym._UpdateWindowCaption
lea esp, [ebp - 0xc]
pop ebx
pop esi
pop edi
pop ebp
ret
call dword [sym.imp.kernel32.dll_CloseHandle]
mov eax, dword [ebp - 0x28]
sub esp, 4
mov dword [esp + 8], edi
mov dword [esp + 4], 0
mov eax, dword [eax + 0x30]
mov eax, dword [eax + 0x18]
mov dword [esp], eax
call dword [sym.imp.kernel32.dll_HeapFree]
sub esp, 0xc
call sym._ShowLastError
lea esp, [ebp - 0xc]
pop ebx
pop esi
pop edi
pop ebp
ret
mov eax, dword [ebp - 0x20]
mov dword [esp + 0xc], 0x30
mov dword [esp + 4], 0x17b
mov dword [esp + 8], eax
mov dword [esp], 0
call sym._DIALOG_StringMsgBox
jmp 0x4030bd
mov dword [esp], ebx
call dword [sym.imp.kernel32.dll_CloseHandle]
sub esp, 4
lea esp, [ebp - 0xc]
pop ebx
pop esi
pop edi
pop ebp
jmp sym._ShowLastError
mov eax, dword [ebp - 0x24]
mov dword [esp + 4], str..LOG
mov dword [esp], eax
call dword [sym.imp.kernel32.dll_lstrcmpW]
sub esp, 8
test eax, eax
jne 0x4033a6
mov eax, dword [0x40800c]
mov dword [esp], eax
call dword [sym.imp.user32.dll_GetWindowTextLengthW]
sub esp, 4
mov dword [esp + 8], eax
mov eax, dword [0x40800c]
mov dword [esp + 0xc], 0xffffffff
mov dword [esp + 4], 0xb1
mov dword [esp], eax
call ebx
mov eax, dword [0x40800c]
sub esp, 0x10
mov dword [esp + 0xc], 0x40a40c
mov dword [esp + 8], 1
mov dword [esp + 4], 0xc2
mov dword [esp], eax
call ebx
sub esp, 0x10
call sym._DIALOG_EditTimeDate
mov eax, dword [0x40800c]
mov dword [esp + 0xc], 0x40a40c
mov dword [esp + 8], 1
mov dword [esp + 4], 0xc2
mov dword [esp], eax
call ebx
sub esp, 0x10
jmp 0x4033a6
cmp esi, 1
je 0x403506
cmp esi, 2
jne 0x4031c5
lea eax, [ebp - 0x18]
xor ebx, ebx
mov dword [ebp - 0x24], eax
mov eax, dword [sym.imp.kernel32.dll_HeapFree]
mov ecx, ebx
mov esi, 1
mov dword [ebp - 0x28], eax
jmp 0x4032a7
cmp ebx, 2
jbe 0x403538
cmp word [edi], 0xbbef
je 0x40360d
lea eax, [ebp - 0x18]
mov dword [ebp - 0x18], 0x288
mov dword [ebp - 0x24], eax
mov dword [esp + 8], eax
mov dword [esp + 4], ebx
mov dword [esp], edi
call dword [sym.imp.advapi32.dll_IsTextUnicode]
mov esi, dword [ebp - 0x18]
sub esp, 0xc
test esi, 8
jne 0x4035d0
and esi, 0x80
jne 0x403596
mov dword [ebp - 0x24], 0
jmp 0x4031d8
movzx eax, byte [edi]
cmp al, 0xff
je 0x4035ea
cmp al, 0xfe
je 0x4035fd
lea eax, [ebp - 0x18]
mov dword [ebp - 0x24], eax
cmp esi, 1
je 0x4035d0
shr ebx, 1
je 0x40350e
xor eax, eax
rol word [edi + eax*2], 8
inc eax
cmp eax, ebx
jb 0x4035a0
jmp 0x40350e
lea eax, [edi + 2]
mov dword [esp + 4], eax
mov eax, dword [0x40800c]
mov dword [esp], eax
call dword [sym.imp.user32.dll_SetWindowTextW]
sub esp, 8
jmp 0x4032fa
shr ebx, 1
jmp 0x40350e
xor eax, eax
mov word [ebx], ax
jmp 0x4032e5
cmp byte [edi + 1], 0xfe
jne 0x40358b
lea eax, [ebp - 0x18]
shr ebx, 1
mov dword [ebp - 0x24], eax
jmp 0x40350e
cmp byte [edi + 1], 0xff
jne 0x40358b
lea eax, [ebp - 0x18]
shr ebx, 1
mov dword [ebp - 0x24], eax
jmp 0x40359e
cmp byte [edi + 2], 0xbf
jne 0x403538
mov dword [ebp - 0x24], 0xfde9
mov esi, 3
jmp 0x4031d8
call sym._ShowLastError
mov eax, dword [ebp - 0x28]
mov dword [esp + 8], edi
mov dword [esp + 4], 0
mov eax, dword [eax + 0x30]
mov eax, dword [eax + 0x18]
mov dword [esp], eax
call dword [sym.imp.kernel32.dll_HeapFree]
sub esp, 0xc
jmp 0x4030bd