A creative thinker who is not afraid to challenge the norm. His diverse track record includes failed startups, approved patents and scientific publications in top conferences and journals. Driven by a mission to protect what matters most to you.

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16 May 2023 . tech . Enhancing Web Server Security with Event Monitoring and Detection - Part 3: Enrichment Comments

Last time, we built a detection that alerts us when an unexpected port is opened on the server. How about creating an alert whenever a successful SSH connection is established from a TOR exit node? I would never SSH to my personal server over TOR, so such activity would be a clear signal of compromise.

We can retrieve any connection attempt using the Zeek.Conn managed schema. However, how can we classify the originating IP as a TOR exit node? Note that this is a dynamic piece of information since TOR exit nodes are constantly being added or removed.

Panther has a solution for this called Enrichment. Enrichment provides external data sources that you can pull into Panther and join them against your schemas on a field, such as...



  • October 2021 - today

    Engineering Manager @ Panther

  • June 2021 - September 2022

    Engineering Manager @ Orfium

  • November 2019 - May 2021

    Tech Lead @ Plum Fintech

  • November 2017 - October 2019

    Founder @ Blocktopus, a Plug and Play KYC/AML for Ethereum Smart Contracts

  • October 2014 - October 2017

    Security Software Engineer @ Microsoft Development Center Norway, worked for several Office 365 backend services, with a focus on Security Engineering

  • October 2011 - September 2012

    Computer Security Researcher @ CERN, developed linux kernel modules to prevent cyber attacks

  • June 2010 - September 2010

    Built Pwn Mail, a Cydia iPhone app for spoofing emails. It served more than 260,000 emails but it was discontinued after a legal threat by Steve Jobs

  • October 2007 - September 2014

    Machine Learning researcher @ KDD lab

    Master studies @ Department of Informatics and Telecommunications on Software Engineering

    Bachelor studies @ Department of Informatics and Telecommunications on Computer Science and Telecomunications


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