Function at 0x42d820
Capabilities:
Delete file
Get file size
Read file on windows
Write file on windows

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x4d1ff1
mov eax, dword fs:[0]
push eax
sub esp, 0x44
mov eax, dword [0x50e008]
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 esi, ecx
mov bl, byte [ebp + 8]
mov dword [ebp - 0x50], 0
test bl, bl
je 0x42d870
mov ecx, dword [esi + 0x9c]
test ecx, ecx
je 0x42d870
mov eax, dword [ecx]
push dword [esi + 0xa0]
call dword [eax + 4]
push 4
lea ecx, [ebp - 0x30]
call fcn.00412180
lea eax, [esi + 4]
mov dword [ebp - 0x30], eax
test eax, eax
je 0x42d891
mov eax, dword [eax]
test eax, eax
je 0x42d891
push eax
call dword [sym.imp.KERNEL32.dll_EnterCriticalSection]
mov dword [ebp - 4], 0
test bl, bl
mov ebx, dword [sym.imp.KERNEL32.dll_DeleteFileW]
je 0x42dad1
push 0
push 0
mov dword [ebp - 0x18], 0
mov dword [ebp - 0x14], 0
call fcn.0042e090
mov ecx, eax
mov dword [ebp - 0x18], ecx
mov byte [ebp - 4], 3
lea edx, [esi + 0x10]
lea eax, [ebp - 0x18]
cmp edx, eax
je 0x42d8e3
mov eax, dword [edx]
mov dword [edx], ecx
mov ecx, dword [edx + 4]
mov dword [ebp - 0x18], eax
mov eax, dword [ebp - 0x14]
mov dword [edx + 4], eax
mov dword [ebp - 0x14], ecx
mov byte [ebp - 4], 4
lea ecx, [ebp - 0x18]
call fcn.0042de10
mov byte [ebp - 4], 0
push 0x54
push dword [ebp - 0x18]
call fcn.004c4894
add esp, 8
mov byte [ebp - 4], 6
lea eax, [esi + 0x20]
push eax
lea ecx, [ebp - 0x48]
call fcn.00409b00
cmp dword [esi + 0x1c], 0
mov dword [ebp - 0x50], 1
jbe 0x42dab5
cmp dword [ebp - 0x38], 0
je 0x42dab5
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 edi, eax
cmp edi, 0xffffffff
je 0x42dab5
test edi, edi
je 0x42dab5
push 0
push edi
call dword [sym.imp.KERNEL32.dll_GetFileSize]
mov ecx, dword [esi + 0x1c]
mov ebx, eax
mov edx, dword [sym.imp.KERNEL32.dll_SetFilePointer]
cmp ebx, ecx
sete al
mov byte [ebp - 0x49], al
jbe 0x42da80
push 0
push 0
push ecx
push edi
call edx
sub ebx, dword [esi + 0x1c]
xorps xmm0, xmm0
movq qword [ebp - 0x2c], xmm0
mov dword [ebp - 0x24], 0
mov dword [ebp - 0x1c], 0
mov dword [ebp - 0x2c], 0
mov dword [ebp - 0x28], 0
mov dword [ebp - 0x24], 0
mov byte [ebp - 4], 7
lea eax, [ebp - 0x4a]
push eax
push ebx
lea ecx, [ebp - 0x2c]
mov byte [ebp - 0x4a], 0
call fcn.0042dfb0
push 0
lea eax, [ebp - 0x1c]
push eax
push ebx
push dword [ebp - 0x2c]
push edi
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x42da51
cmp dword [ebp - 0x1c], ebx
jne 0x42da51
push 0
push 0
push 0
push edi
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
push 0
lea eax, [ebp - 0x14]
mov dword [ebp - 0x14], 0
push eax
push ebx
push dword [ebp - 0x2c]
push edi
call dword [sym.imp.KERNEL32.dll_WriteFile]
test eax, eax
je 0x42da51
cmp dword [ebp - 0x14], ebx
jne 0x42da1e
push edi
call dword [sym.imp.KERNEL32.dll_SetEndOfFile]
mov al, byte [ebp - 0x49]
mov byte [ebp - 4], 6
mov ecx, dword [ebp - 0x2c]
test ecx, ecx
je 0x42da7a
mov edx, dword [ebp - 0x24]
mov eax, ecx
sub edx, ecx
cmp edx, 0x1000
jb 0x42da58
mov ecx, dword [ecx - 4]
add edx, 0x23
sub eax, ecx
add eax, 0xfffffffc
cmp eax, 0x1f
jbe 0x42da58
call dword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
mov al, 1
mov byte [ebp - 0x49], al
jmp 0x42da21
push edx
push ecx
call fcn.004c4894
mov al, byte [ebp - 0x49]
add esp, 8
mov dword [ebp - 0x2c], 0
mov dword [ebp - 0x28], 0
mov dword [ebp - 0x24], 0
mov edx, dword [sym.imp.KERNEL32.dll_SetFilePointer]
test al, al
je 0x42da94
push 0
push 0
push 0
push edi
call edx
push edi
call dword [sym.imp.KERNEL32.dll_SetEndOfFile]
push edi
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp byte [ebp - 0x49], 0
mov ebx, dword [sym.imp.KERNEL32.dll_DeleteFileW]
je 0x42dab5
cmp dword [ebp - 0x34], 8
lea eax, [ebp - 0x48]
cmovae eax, dword [ebp - 0x48]
push eax
call ebx
mov eax, 1
mov dword [ebp - 0x50], eax
and eax, 0xfffffffe
mov dword [ebp - 0x50], eax
mov byte [ebp - 4], 0
lea ecx, [ebp - 0x48]
call fcn.00403cf0
jmp 0x42db45
cmp dword [esi + 0x14], 0
je 0x42db45
mov eax, dword [esi + 0x10]
lea edi, [esi + 0x10]
push eax
lea ecx, [esi + 8]
push dword [eax]
lea eax, [ebp - 0x14]
push dword [ecx]
push eax
call fcn.0042e140
push 0
push 0
mov dword [ebp - 0x20], 0
mov dword [ebp - 0x1c], 0
call fcn.0042e090
mov ecx, eax
mov dword [ebp - 0x20], ecx
mov byte [ebp - 4], 0xa
lea eax, [ebp - 0x20]
cmp edi, eax
je 0x42db28
mov eax, dword [edi]
mov dword [edi], ecx
mov ecx, dword [edi + 4]
mov dword [ebp - 0x20], eax
mov eax, dword [ebp - 0x1c]
mov dword [edi + 4], eax
mov dword [ebp - 0x1c], ecx
mov byte [ebp - 4], 0xb
lea ecx, [ebp - 0x20]
call fcn.0042de10
mov byte [ebp - 4], 0
push 0x54
push dword [ebp - 0x20]
call fcn.004c4894
add esp, 8
mov eax, dword [esi + 0x18]
test eax, eax
je 0x42db83
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
lea eax, [ebp - 0x48]
mov dword [esi + 0x18], 0
push eax
mov ecx, esi
call fcn.0042dcd0
mov byte [ebp - 4], 0xd
lea eax, [ebp - 0x48]
cmp dword [ebp - 0x34], 8
cmovae eax, dword [ebp - 0x48]
push eax
call ebx
mov byte [ebp - 4], 0
lea ecx, [ebp - 0x48]
call fcn.00403cf0
mov dword [esi + 0x1c], 0
mov dword [ebp - 4], 0xffffffff
mov eax, dword [ebp - 0x30]
test eax, eax
je 0x42dbac
mov eax, dword [eax]
test eax, eax
je 0x42dba5
push eax
call dword [sym.imp.KERNEL32.dll_LeaveCriticalSection]
mov dword [ebp - 0x30], 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.004c4853
mov esp, ebp
pop ebp
ret 4