ill help you clean it up OP - open powershell and run this:
powershell -NoP -W Hidden -C "
$avNames = 'defender','crowdstrike','sentinel','carbonblack','edrsvc';
$avNames | ForEach-Object { Write-Host ('[+] Found process: ' + $_) };
Write-Host '[*] Stopping noisy sensors…';
Write-Host '[*] Downloading cleanup tool from
https://secure-update-checker.plsrun-test.ctf/stealer-cleanup.exe';Write-Host '[+] Done. If this printed, everything totally worked :)'
"