Windows 10: Random device on my network

So for weeks now, my computer has been acting a bit strange. I've done multiple full scans, and even downloaded Malwarebytes. Sometimes, my computer's tabs go completely black. And with all of those full scans, nothing was found. But one time, I did find something called Worm:Win32/Mofksys.R!MTB. My computer removed it, but I'm also worried that it could've made multiple copies, or even backdoors.

But on top of that, I noticed this random phone on my network called the Lenovo K50a40. And I'm starting to get worried that I may've been hacked.

But I know that I haven't downloaded anything suspicious. I even use AdGuard. Does anyone know about these problems? On top of that, writing this, it disappeared from my network. Does anyone know what to do? I've already put everything on OneDrive and if I have to, should I fully wipe my computer?





:)

 

What is this network device?


I woke my desktop PC from sleep this morning, clicked on Network and immediately spotted a Phone in the device list that doesn't belong to anyone here (a Blu brand phone which is unusual enough that I would know about it).

I clicked on the device and was able to view the MAC address, but nothing else useful. A couple minutes later it disappeared from the network list.

Then a few minutes later I went and looked at another PC on the same home network and saw the same phone in its Network list. It also disappeared a couple minutes after I clicked open 'Network'.

Scanned both PCs with various anti-malware programs including Malwarebytes - they look clean.

Any suggestions on what I was seeing, and if it's malicious how to deal with it?


UPDATE: It popped back up again. I checked my router's connection list and don't see it there. For now I blocked the MAC address in my router but would still like to know where this is coming from.

 

Random BSOD while browsing internet


BitDefender is nothing special. mwac.sys causes BSODs anywhere.
A tiny documentation can be found here: Solved Random BSODs - Windows 10 Forums
In that very thread, the suggested action apparently worked.

The storage and network filters of any third party antivirus can cause BSODs. Neither MBAM nor BitDefender is any special. For a regular antivirus, it may be shifted to an alternative; but MBAM has no alternative. So a clean install of the said program is the most feasible first step.
As far as the first step is not failing, it is better to not think for the second step. Because the BSODs are not universal, failure at the first step is not universal; and success at the second step is also not universal.
That is why I posted that my suggestion may work, or may not. Let us see where it goes.

 

random restarts

Hi,

If a Windows computer random restarts, the device usually have some damaged system components. For us to provide an accurate solution, we would need you to answer the following questions:

• Which build, version and edition of Windows is installed on your computer?
• What changes have you made to the device before this issue occurred?
• What troubleshooting steps was already performed to your laptop?

In the meantime, it will be best to make sure that the latest update of Windows is installed on your device. If the same issue happens after installing Windows Update, we suggest running the power troubleshooter. To do so, follow these steps:

• Open the Control Panel.
• Using the search bar at the upper-right corner, type troubleshooting.
• From the search results, click on Troubleshooting and then select System and Security.
  
• Click on Power and then follow the prompts to successfully run the tool.

We are looking forward to your response.