hi
first i want to say my english is not native so excuse me from the beginning
yesterday tried to install object dock and got a virus
they installed few programs and was able to uninstall but after that shut down my PC then most of my files from C and other two external HDD have the additional extension .boop
example:
0acec3abbb37mnyz.jpg.boop BOOP File 61 KB 8/22/2020 8:17:25 PM
0f25e17c5407b77600f.jpg.boop BOOP File 1,763 KB 8/22/2020 8:17:25 PM
1452679715245.gif.boop BOOP File 47 KB 8/22/2020 8:17:25 PM
20180318_141106.jpg.boop BOOP File 1,304 KB 8/22/2020 8:17:25 PM
20180318_141111.jpg.boop BOOP File 1,299 KB 8/22/2020 8:17:25 PM
20180318_141120.jpg.boop BOOP File 1,309 KB 8/22/2020 8:17:26 PM
2381206.jpg.boop BOOP File 220 KB 8/22/2020 8:17:26 PM
2823347jRb02OMg.gif.boop BOOP File 40 KB 8/22/2020 8:17:26 PM
28233533FQHAR7J8.gif.boop BOOP File 230 KB 8/22/2020 8:17:26 PM
38.gif.boop BOOP File 1,339 KB 8/22/2020 8:17:26 PM
399a175bd5461ef9c458f468d8e9b0c6.jpg.boop BOOP File 55 KB 8/22/2020 8:17:26 PM
40.gif.boop BOOP File 30 KB 8/22/2020 8:17:27 PM
42c03573aa7b.jpg.boop BOOP File 59 KB 8/22/2020 8:17:27
etc….
also ‘’start task manager’’ was unable but solved by a friend of mine
however, a problem persists

one of the executable installed and not find in programs and features was Garbage cleaner which i deleted

tried to get Free Ransomware Decryptors but i could not find .boop fileso i guess this virus is new … or not
please, i kindly ask for help
i dont have Kaspersky installed or payed
but i will soon as my avi, mp3, txt. and many other files will be decrypted
then i must install a new windows
now i have windows 7. 64-bit
also, Microsoft Security Essentials detected 16 viruses (type) but one of them appears after restart each time
Trojan:Win32/Skeeyah.A
[Category: Trojan
Description: This program is dangerous and executes commands from an attacker.
Recommended action: Remove this software immediately.
Items:
file:C:\Windows\system32\drivers\Wdf54067.sys]

again, please help and many thanks in advance
best wishes Carmen Tipa