Function at 0x43fac0
Capabilities:
Delete file
Get file size
Read file on windows
Write file on windows

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x52ed71
mov eax, dword fs:[0]
push eax
sub esp, 0x50
mov eax, dword [0x58a088]
xor eax, ebp
mov dword [ebp - 0x14], eax
push ebx
push esi
push edi
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov edi, ecx
mov bl, byte [ebp + 8]
mov dword [ebp - 0x58], 0
test bl, bl
je 0x43fb10
mov ecx, dword [edi + 0x9c]
test ecx, ecx
je 0x43fb10
mov eax, dword [ecx]
push dword [edi + 0xa0]
call dword [eax + 4]
lea esi, [edi + 4]
mov dword [ebp - 0x34], 0
mov dword [ebp - 0x34], esi
test esi, esi
je 0x43fb2e
mov eax, dword [esi]
test eax, eax
je 0x43fb2e
push eax
call dword [sym.imp.KERNEL32.dll_EnterCriticalSection]
mov dword [ebp - 4], 0
test bl, bl
je 0x43fd76
push 0
push 0
mov dword [ebp - 0x1c], 0
mov dword [ebp - 0x18], 0
call fcn.00440320
mov ecx, eax
mov dword [ebp - 0x1c], ecx
mov byte [ebp - 4], 3
lea edx, [edi + 0x10]
lea eax, [ebp - 0x1c]
cmp edx, eax
je 0x43fb7a
mov eax, dword [edx]
mov dword [edx], ecx
mov ecx, dword [edx + 4]
mov dword [ebp - 0x1c], eax
mov eax, dword [ebp - 0x18]
mov dword [edx + 4], eax
mov dword [ebp - 0x18], ecx
mov byte [ebp - 4], 4
lea ecx, [ebp - 0x1c]
call fcn.00440100
mov byte [ebp - 4], 0
push 0x54
push dword [ebp - 0x1c]
call fcn.004e2035
add esp, 8
mov byte [ebp - 4], 6
lea eax, [edi + 0x20]
push eax
lea ecx, [ebp - 0x4c]
call fcn.00404520
cmp dword [edi + 0x1c], 0
mov dword [ebp - 0x58], 1
jbe 0x43fd54
lea ecx, [ebp - 0x4c]
call fcn.00404470
test al, al
jne 0x43fd54
push 0
push 0x80
push 4
push 0
push 0
push 0xc0000000
lea ecx, [ebp - 0x4c]
call fcn.00403390
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileW]
mov ebx, eax
cmp ebx, 0xffffffff
je 0x43fd54
test ebx, ebx
je 0x43fd54
push 0
push ebx
call dword [sym.imp.KERNEL32.dll_GetFileSize]
mov ecx, dword [edi + 0x1c]
cmp eax, ecx
mov dword [ebp - 0x54], eax
mov eax, dword [sym.imp.KERNEL32.dll_SetFilePointer]
sete byte [ebp - 0x4d]
jbe 0x43fd1e
push 0
push 0
push ecx
push ebx
call eax
mov eax, dword [ebp - 0x54]
xorps xmm0, xmm0
sub eax, dword [edi + 0x1c]
movq qword [ebp - 0x30], xmm0
mov dword [ebp - 0x28], 0
mov dword [ebp - 0x54], eax
mov dword [ebp - 0x20], 0
mov dword [ebp - 0x30], 0
mov dword [ebp - 0x2c], 0
mov dword [ebp - 0x28], 0
mov byte [ebp - 4], 7
lea ecx, [ebp - 0x4e]
push ecx
push eax
lea ecx, [ebp - 0x30]
mov byte [ebp - 0x4e], 0
call fcn.00440270
push 0
lea eax, [ebp - 0x20]
push eax
push dword [ebp - 0x54]
push dword [ebp - 0x30]
push ebx
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x43fcc8
mov eax, dword [ebp - 0x54]
cmp dword [ebp - 0x20], eax
jne 0x43fcc8
push 0
push 0
push 0
push ebx
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
push 0
lea eax, [ebp - 0x18]
mov dword [ebp - 0x18], 0
push eax
push dword [ebp - 0x54]
push dword [ebp - 0x30]
push ebx
call dword [sym.imp.KERNEL32.dll_WriteFile]
test eax, eax
je 0x43fcc8
mov eax, dword [ebp - 0x54]
cmp dword [ebp - 0x18], eax
jne 0x43fccc
push ebx
call dword [sym.imp.KERNEL32.dll_SetEndOfFile]
jmp 0x43fccc
mov byte [ebp - 0x4d], 1
mov byte [ebp - 4], 6
mov ecx, dword [ebp - 0x30]
test ecx, ecx
je 0x43fd19
mov edx, dword [ebp - 0x28]
mov eax, ecx
sub edx, ecx
cmp edx, 0x1000
jb 0x43fcfa
mov ecx, dword [ecx - 4]
add edx, 0x23
sub eax, ecx
add eax, 0xfffffffc
cmp eax, 0x1f
ja 0x43fe6f
push edx
push ecx
call fcn.004e2035
add esp, 8
mov dword [ebp - 0x30], 0
mov dword [ebp - 0x2c], 0
mov dword [ebp - 0x28], 0
mov eax, dword [sym.imp.KERNEL32.dll_SetFilePointer]
cmp byte [ebp - 0x4d], 0
je 0x43fd34
push 0
push 0
push 0
push ebx
call eax
push ebx
call dword [sym.imp.KERNEL32.dll_SetEndOfFile]
push ebx
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp byte [ebp - 0x4d], 0
je 0x43fd54
lea ecx, [ebp - 0x4c]
call fcn.00403390
mov ebx, dword [sym.imp.KERNEL32.dll_DeleteFileW]
push eax
call ebx
jmp 0x43fd5a
mov ebx, dword [sym.imp.KERNEL32.dll_DeleteFileW]
mov eax, 1
mov dword [ebp - 0x58], eax
and eax, 0xfffffffe
mov dword [ebp - 0x58], eax
mov byte [ebp - 4], 0
lea ecx, [ebp - 0x4c]
call fcn.00402a30
jmp 0x43fdf0
cmp dword [edi + 0x14], 0
je 0x43fdea
mov eax, dword [edi + 0x10]
lea ebx, [edi + 0x10]
push eax
lea ecx, [edi + 8]
push dword [eax]
lea eax, [ebp - 0x18]
push dword [ecx]
push eax
call fcn.004403e0
push 0
push 0
mov dword [ebp - 0x24], 0
mov dword [ebp - 0x20], 0
call fcn.00440320
mov ecx, eax
mov dword [ebp - 0x24], ecx
mov byte [ebp - 4], 0xa
lea eax, [ebp - 0x24]
cmp ebx, eax
je 0x43fdcd
mov eax, dword [ebx]
mov dword [ebx], ecx
mov ecx, dword [ebx + 4]
mov dword [ebp - 0x24], eax
mov eax, dword [ebp - 0x20]
mov dword [ebx + 4], eax
mov dword [ebp - 0x20], ecx
mov byte [ebp - 4], 0xb
lea ecx, [ebp - 0x24]
call fcn.00440100
mov byte [ebp - 4], 0
push 0x54
push dword [ebp - 0x24]
call fcn.004e2035
add esp, 8
mov ebx, dword [sym.imp.KERNEL32.dll_DeleteFileW]
mov eax, dword [edi + 0x18]
test eax, eax
je 0x43fe2b
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
lea eax, [ebp - 0x4c]
mov dword [edi + 0x18], 0
push eax
mov ecx, edi
call fcn.0043ff90
mov byte [ebp - 4], 0xd
lea ecx, [ebp - 0x4c]
call fcn.00403390
push eax
call ebx
mov byte [ebp - 4], 0
lea ecx, [ebp - 0x4c]
call fcn.00402a30
mov dword [edi + 0x1c], 0
mov dword [ebp - 4], 0xffffffff
test esi, esi
je 0x43fe51
mov eax, dword [esi]
test eax, eax
je 0x43fe4a
push eax
call dword [sym.imp.KERNEL32.dll_LeaveCriticalSection]
mov dword [ebp - 0x34], 0
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebx
mov ecx, dword [ebp - 0x14]
xor ecx, ebp
call fcn.004e1ff4
mov esp, ebp
pop ebp
ret 4
call fcn.004ed129
int3