jq is like sed for JSON data – you can use it to slice and filter and map and transform structured data with the same ease that sed, awk, grep and friends let you play with text.
OSSEC is an Open Source Host-based Intrusion Detection System that performs log analysis, file integrity checking, policy monitoring, rootkit detection, real-time alerting and active response. It runs on most operating systems, including Linux, MacOS, Solaris, HP-UX, AIX and Windows.
One of the core ideas behind the design of the sanitizer, is that just because a message contains an infected attachment doesn't mean that the rest of it shouldn't be delivered. Email often contains important information, and it is vital that a tool like this interrupt the normal flow of communication as little as possible. It's common courtesy to inform the user of any changes that are made. The Anomy sanitizer tries to follow these rules.