Include threat information from MISP in Zeek network visibility

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Zeek (formerly Bro) is a free and open-source software network analysis framework. It gives insights on DNS queries, HTTP and TLS information and details on transmitted files. I find Zeek one of the best network monitoring tools available to provide detailed visibility on network traffic.

Zeek has a built-in intelligence framework. This framework allows you to add information received via MISP directly into the network visibility capabilities of Zeek. This includes

Visits to URLs or … Read more.

ENISA Threat Landscape 2022

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I contributed to the ENISA Threat Landscape 2022. The ETL is an annual report on the status of the cybersecurity threat landscape. It identifies the top threats, major trends observed with respect to threats, threat actors and attack techniques, as well as impact and motivation analysis. It also describes relevant mitigation measures.

Get a copy of the ENISA Threat Landscape 2022.

MISP web scraper

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I published an article on the MISP project website on the MISP web scraper.

There are a lot of websites that regularly publish reports on new threats, campaigns or actors with useful indicators, references and context information. Unfortunately only a few publish information in an easily accessible and structured format, such as a MISP-feed. As a result, we often find ourself manually scraping these sites, and then copy-pasting this information in new MISP events. These … Read more.

Cyber Resilience Strategy Changes You Should Know in the EU’s Digital Decade

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I published an article on the IBM Security Intelligence blog : Cyber Resilience Strategy Changes You Should Know in the EU’s Digital Decade. The article describes the new EU Cybersecurity Strategy and one the proposal for a revised Directive on Security of Network and Information Systems

The EU Commission attempts to improve cyber resilience with the NIS2 Directive and provides an overview of cyber resilience challenges for 5G and IoT. Other topics discussed include … Read more.

Cybersecurity Ethics: Establishing a Code for Your SOC

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I published an article on the IBM Security Intelligence blog : Cybersecurity Ethics: Establishing a Code for Your SOC. The article describes the dilemmas you can face when working in a SOC or doing incident response work.

The articles describes Cybersecurity Ethics Guidance Frameworks, Best Practices and a Practical Approach for Cybersecurity Ethics, including a set of commandments to adhere. For example

Do not use a computer to harm other people. Protect society and … Read more.

5G – 101

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A short introduction on 5G. What is 5G, why do we need it and where will it be used?

5g 101 from Koen Van Impe

If you want to read about the security threats on 5G then these are a couple of interesting resources:

Updated ENISA 5G Threat Landscape Report to Enhance 5G Security ENISA threat landscape for 5G Networks Cybersecurity of 5G networks EU Toolbox of risk mitigating measures

Handle phishing e-mails with a phishing alert button and TheHive

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Your users are the first line of defence against threats, especially for what concerns phishing. One of the ways to get more involvement is offering a simple and easy way to report suspicious messages, such as phishing e-mails. You can do this via a phishing alert button that allows users to notify the helpdesk of a suspicious message. The technology behind such a button is straightforward:

Forward the message; Remove the message from the inbox. … Read more.

How to Support Defenders with the Permissible Actions Protocol

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In a previous article I described how to defend with the courses of action matrix and indicator lifecycle management. The courses of action matrix describes passive and active actions that defenders can take with a varying type of impact on the attacker (or intrusion). The Permissible Actions Protocol or PAP achieves something similar, but with a focus on what defenders are allowed to do.

PAP is a protocol that describes how much that we accept … Read more.

From threat intelligence to client scanning

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An antivirus solution is an indispensable component in your defence arsenal but it does not protect you against all threats. Complimentary to an antivirus is Loki, an open-source IOC scanner. Loki is a scanner that allows you to search for intrusion activity such as

Network connections to C2 servers or malicious domains; Presence of files related to APT activity; Process anomalies such as malicious implants or patches in memory ; Credential dump activities; Checks for … Read more.

A walkthrough of Watcher

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One of the nice things of working in infosec is that there is always a new tool available to make your work easier. It can also cause a lot of frustration, as there is yet another new tool that you need to master. A tool I recently discovered is Watcher, a platform for discovering new cybersecurity threats targeting your organisation. Some of its key features include

Detecting emerging trends via social networks and RSS feeds; … Read more.