regex to find serialized php sobject

regex to find php serialized objects,
might be used to find explout-attempts
against the latest  joomla-vuln

credits: @NAXSI_WAF


O:\+?\d+:.*:\+?\d+:{(s|S):\+?\d+:.*;.*}


> https://blog.sucuri.net/2015/12/remote-command-execution-vulnerability-in-joomla.html