Function at 0x4b7d28
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 [0x4e7760]
call fcn.00404b2c
push eax
push 0x400
push 0
push 4
lea eax, [ebp - 0xc]
push eax
push 0xffffffffffffffff
call sub.kernel32.dll_CreateFileMappingA
mov dword [0x4ead04], eax
call sub.kernel32.dll_GetLastError
cmp eax, 0xb7
jne 0x4b7eaf
mov eax, dword [0x4e7760]
call fcn.00404b2c
push eax
push 0
push 0xf001f
call sub.kernel32.dll_OpenFileMappingA
mov dword [0x4ead04], eax
cmp dword [0x4ead04], 0
jne 0x4b7dd0
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.004bc848
push 0
push 0
push 0
push 0xf001f
mov eax, dword [0x4ead04]
push eax
call sub.kernel32.dll_MapViewOfFile
mov dword [0x4ead1c], eax
cmp dword [0x4ead1c], 0
jne 0x4b7e0c
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.004bc848
mov eax, dword [0x4ead1c]
add eax, 0x400
sub eax, 4
mov dword [0x4ead20], eax
mov eax, dword [0x4ead20]
sub eax, 4
mov dword [0x4ead24], eax
mov eax, dword [0x4ead24]
sub eax, 4
mov dword [0x4ead28], eax
mov eax, dword [0x4ead28]
sub eax, 8
mov dword [0x4ead30], eax
mov eax, dword [0x4ead30]
sub eax, 4
mov dword [0x4ead2c], eax
mov eax, dword [0x4e775c]
call fcn.00404b2c
push eax
push 0
push 0x1f0001
call sub.kernel32.dll_OpenMutexA
mov dword [0x4ead08], eax
mov eax, 2
call fcn.004b7c8c
mov dword [0x4ead0c], eax
mov eax, 3
call fcn.004b7c8c
mov dword [0x4ead10], eax
mov eax, 4
call fcn.004b7c8c
mov dword [0x4ead14], eax
mov eax, 5
call fcn.004b7c8c
mov dword [0x4ead18], eax
jmp 0x4b7f92
mov eax, dword [0x4e775c]
call fcn.00404b2c
push eax
push 0
lea eax, [ebp - 0xc]
push eax
call fcn.00406d0c
mov dword [0x4ead08], eax
push ebp
xor edx, edx
mov eax, 2
call fcn.004b7cd4
pop ecx
mov dword [0x4ead0c], eax
push ebp
mov dl, 1
mov eax, 3
call fcn.004b7cd4
pop ecx
mov dword [0x4ead10], eax
push ebp
xor edx, edx
mov eax, 4
call fcn.004b7cd4
pop ecx
mov dword [0x4ead14], eax
push ebp
xor edx, edx
mov eax, 5
call fcn.004b7cd4
pop ecx
mov dword [0x4ead18], eax
push 0
push 0
push 0
push 0xf001f
mov eax, dword [0x4ead04]
push eax
call sub.kernel32.dll_MapViewOfFile
mov dword [0x4ead1c], eax
mov eax, dword [0x4ead1c]
add eax, 0x400
sub eax, 4
mov dword [0x4ead20], eax
mov eax, dword [0x4ead20]
sub eax, 4
mov dword [0x4ead24], eax
mov eax, dword [0x4ead24]
sub eax, 4
mov dword [0x4ead28], eax
mov eax, dword [0x4ead28]
sub eax, 8
mov dword [0x4ead30], eax
mov eax, dword [0x4ead30]
sub eax, 4
mov dword [0x4ead2c], eax
mov eax, dword [0x4ead20]
xor edx, edx
mov dword [eax], edx
mov eax, dword [0x4ead24]
xor edx, edx
mov dword [eax], edx
mov eax, dword [0x4ead2c]
xor edx, edx
mov dword [eax], edx
mov eax, dword [0x4ead20]
cmp dword [eax], 0
jge 0x4b7fa5
mov eax, dword [0x4ead20]
xor edx, edx
mov dword [eax], edx
mov eax, dword [0x4ead24]
cmp dword [eax], 0
jge 0x4b7fb8
mov eax, dword [0x4ead24]
xor edx, edx
mov dword [eax], edx
mov byte [ebx + 0xf], 1
pop ebx
mov esp, ebp
pop ebp
ret