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Telegram Zeek, you’re my main notice

Telegram Zeek, you’re my main notice

Notices in Zeek   Zeek’s Notice Framework enables network operators to specify how potentially interesting network findings can be reported. This decoupling of detection and reporting highlights Zeek’s flexibility: a notice-worthy event in network A may be...

Package management updates in Zeek 4

Our latest Zeek release includes a number of improvements around zkg, Zeek’s package manager. They aim to make zkg more accessible and familiar to users of other package managers. In this blog post I’d like to walk you through these changes. zkg is now a core...

Writing My First Protocol Analyzer

I recently tried my hand at writing my first protocol analyzer for Zeek. This is something that I’ve wanted to accomplish since first learning about Zeek. I recall trying to concatenate all the strings from tcp_contents() and parse application layer data using string...

Got Zoom ?

I still find it amazing what you can find quite simply with Zeek.  Since Zoom seems to be on top of mind for many recently, as an example to show how easily you can highlight specific traffic with great accuracy and granularity, I wrote this simple PoC package...