I just had this same situation today with that dumb burosys.net Flash player bogus update, however I couldn't find a solution using Antivirus or a Spyware which I already have installed but never recognized any problem.
I resolved it using a DNS cache clearing.
Here's an article about what it is "DNS Spoofing":
And here's one on how to fix it.
They worked for me!
Hopefully they will work for you buddy.
Hi, I have a weird problem and is really annoying me, my sister got this screen when she was on facebook:
She did not notice it was not a real Adobe announcement, so she clicked on it, and I guess something was installed in her computer, because now, I see it on my computer too! I checked facebook on my phone, using Chrome as well, and same thing happened, so that's something playing with the network, since we use the same router, I checked the code of that screen and it points to a site www.burosys.net which according to my antirivus is a non safe URL, I rebooted it and initialized the machine in safe mode, ran MalwareBytes but it did not find anything, however the problem is still there, can you help me out please? thank you!!