Being a volunteer for the SANS Internet Storm Center, I’m a big fan of the DShield service. I think that I’m feeding DShield with logs for eight or nine years now. In 2011, I wrote a Perl script to send my OSSEC firewall logs to DShield. This script has been
I published the following diary on isc.sans.org: “Detecting Undisclosed Vulnerabilities with Security Tools & Features“. I’m a big fan of OSSEC. This tools is an open source HIDS and log management tool. Although often considered as the “SIEM of the poor”, it integrates a lot of interesting features and is fully configurable
I published the following diary on isc.sans.org: “IOC’s: Risks of False Positive Alerts Flood Ahead“. Yesterday, I wrote a blog post which explained how to interconnect a Cuckoo sandbox and the MISP sharing platform. MISP has a nice REST API that allows you to extract useful IOC’s in different formats.
With the number of attacks that we are facing today, defenders are looking for more and more IOC’s (“Indicator of Compromise) to feed their security solutions (firewalls, IDS, …). It becomes impossible to manage all those IOC’s manually and automation is the key. There are two main problems with this
I published the following diary on isc.sans.org: “Free Software Quick Security Checklist“. Free software (open source or not) is interesting for many reasons. It can be adapted to your own needs, it can be easily integrated within complex architectures but the most important remains, of course, the price. Even if
During the last edition of the Troopers security conference in March, I attended a talk about “JustMetaData”. It’s a tool developed by Chris Truncer to perform open source intelligence against IP addresses. Since then, I used this tool on a regular basis. Often when you’re using a tool, you have ideas to improve
I published the following diary on isc.sans.org: Hunting for Malicious Files with MISP + OSSEC.
Honestly, I never really played with Docker but… For a few weeks, I succumbed to the temptation of playing with Docker thanks to a friend who’s putting everything in docker containers. If you still don’t know Docker, here is a very brief introduction: Docker lets you run applications in a “container“. In this
Recently, I was involved in an incident handling mission to find how some confidential emails were being tracked. Let’s imagine a first scenario: Alice sends a mail to Bob. Bob reads Alice’s email and Alice gets notified. Nothing special, this is a standard feature offered by most commercial messaging solutions.
A quick blog post about an issue I faced this morning. While drinking my morning coffee and reviewing what happened during the last night in my logs, I detected that one of my website (leakedin.com) was entirely mirrored by a guy from Brazil. I’m not against sharing information but in this case,