On the 22nd of December a person from my family was using the computer, and I suspect they clicked something on Facebook or some kind of advertisment.
Then, on the same day, I was playing a game - well known and I have been playing it for long time. Suddenly a black window appeared and the computer rebooted.
On the 23rd of December after I opened chrome and checked my facebook, chrome suddenly shuted down, and I could not turn it back on. Then, I started seeing that explorer.exe uses a lot of CPU, RAM, network (opening a lot of ports and connections - about 1000), and was uploading and downloading data on the disk.
I runned TDSS killer, and installed kaspersky internet security. With this I was able to block activity of explorer.exe, but as you know this app is vital on Windows 7.
Please advise what to do next.