Function at 0x498738
Capabilities:
Check mutex on windows
Read file via mapping

Disassembly:
push ebp
mov ebp, esp
add esp, 0xffffffd8
push ebx
mov ebx, eax
push 1
lea eax, [ebp - 0x20]
push eax
call sub.advapi32.dll_InitializeSecurityDescriptor
push 0
push 0
push 0xffffffffffffffff
lea eax, [ebp - 0x20]
push eax
call sub.advapi32.dll_SetSecurityDescriptorDacl
mov dword [ebp - 0xc], 0xc
lea eax, [ebp - 0x20]
mov dword [ebp - 8], eax
mov dword [ebp - 4], 0xffffffff
mov eax, dword [0x4a5be8]
call fcn.00404528
push eax
push 0x400
push 0
push 4
lea eax, [ebp - 0xc]
push eax
push 0xffffffffffffffff
call sub.kernel32.dll_CreateFileMappingA
mov dword [0x4a7fc8], eax
call sub.kernel32.dll_GetLastError
cmp eax, 0xb7
jne 0x4988bf
mov eax, dword [0x4a5be8]
call fcn.00404528
push eax
push 0
push 0xf001f
call sub.kernel32.dll_OpenFileMappingA
mov dword [0x4a7fc8], eax
cmp dword [0x4a7fc8], 0
jne 0x4987e0
call sub.kernel32.dll_GetLastError
mov dword [ebp - 0x28], eax
mov byte [ebp - 0x24], 0
lea edx, [ebp - 0x28]
xor ecx, ecx
mov al, 0x3a
call fcn.0048a6bc
push 0
push 0
push 0
push 0xf001f
mov eax, dword [0x4a7fc8]
push eax
call sub.kernel32.dll_MapViewOfFile
mov dword [0x4a7fe0], eax
cmp dword [0x4a7fe0], 0
jne 0x49881c
call sub.kernel32.dll_GetLastError
mov dword [ebp - 0x28], eax
mov byte [ebp - 0x24], 0
lea edx, [ebp - 0x28]
xor ecx, ecx
mov al, 0x3a
call fcn.0048a6bc
mov eax, dword [0x4a7fe0]
add eax, 0x400
sub eax, 4
mov dword [0x4a7fe4], eax
mov eax, dword [0x4a7fe4]
sub eax, 4
mov dword [0x4a7fe8], eax
mov eax, dword [0x4a7fe8]
sub eax, 4
mov dword [0x4a7fec], eax
mov eax, dword [0x4a7fec]
sub eax, 8
mov dword [0x4a7ff4], eax
mov eax, dword [0x4a7ff4]
sub eax, 4
mov dword [0x4a7ff0], eax
mov eax, dword [0x4a5be4]
call fcn.00404528
push eax
push 0
push 0x1f0001
call sub.kernel32.dll_OpenMutexA
mov dword [0x4a7fcc], eax
mov eax, 2
call fcn.0049869c
mov dword [0x4a7fd0], eax
mov eax, 3
call fcn.0049869c
mov dword [0x4a7fd4], eax
mov eax, 4
call fcn.0049869c
mov dword [0x4a7fd8], eax
mov eax, 5
call fcn.0049869c
mov dword [0x4a7fdc], eax
jmp 0x4989a2
mov eax, dword [0x4a5be4]
call fcn.00404528
push eax
push 0
lea eax, [ebp - 0xc]
push eax
call fcn.00406744
mov dword [0x4a7fcc], eax
push ebp
xor edx, edx
mov eax, 2
call fcn.004986e4
pop ecx
mov dword [0x4a7fd0], eax
push ebp
mov dl, 1
mov eax, 3
call fcn.004986e4
pop ecx
mov dword [0x4a7fd4], eax
push ebp
xor edx, edx
mov eax, 4
call fcn.004986e4
pop ecx
mov dword [0x4a7fd8], eax
push ebp
xor edx, edx
mov eax, 5
call fcn.004986e4
pop ecx
mov dword [0x4a7fdc], eax
push 0
push 0
push 0
push 0xf001f
mov eax, dword [0x4a7fc8]
push eax
call sub.kernel32.dll_MapViewOfFile
mov dword [0x4a7fe0], eax
mov eax, dword [0x4a7fe0]
add eax, 0x400
sub eax, 4
mov dword [0x4a7fe4], eax
mov eax, dword [0x4a7fe4]
sub eax, 4
mov dword [0x4a7fe8], eax
mov eax, dword [0x4a7fe8]
sub eax, 4
mov dword [0x4a7fec], eax
mov eax, dword [0x4a7fec]
sub eax, 8
mov dword [0x4a7ff4], eax
mov eax, dword [0x4a7ff4]
sub eax, 4
mov dword [0x4a7ff0], eax
mov eax, dword [0x4a7fe4]
xor edx, edx
mov dword [eax], edx
mov eax, dword [0x4a7fe8]
xor edx, edx
mov dword [eax], edx
mov eax, dword [0x4a7ff0]
xor edx, edx
mov dword [eax], edx
mov eax, dword [0x4a7fe4]
cmp dword [eax], 0
jge 0x4989b5
mov eax, dword [0x4a7fe4]
xor edx, edx
mov dword [eax], edx
mov eax, dword [0x4a7fe8]
cmp dword [eax], 0
jge 0x4989c8
mov eax, dword [0x4a7fe8]
xor edx, edx
mov dword [eax], edx
mov byte [ebx + 0xf], 1
pop ebx
mov esp, ebp
pop ebp
ret