I published the following diary on isc.sans.org: “Searching for Geographically Improbable Login Attempts“: For the human brain, an IP address is not the best IOC because, like phone numbers, we are bad to remember them. That’s why DNS was created. But, in many log management applications, there are features to
I’m using OSSEC to feed an instance of TheHive to investigate security incidents reported by OSSEC. To better categorize the alerts and merge similar events, I needed to add more observables. OSSEC alerts are delivered by email with interesting information for TheHive. This was an interesting use case to play
TheHive is an awesome tool to perform incident management. One of the software components that is linked to TheHive is Cortex defined as a “Powerful observable analysis engine“. Let’s me explain why Cortex can save you a lot of time. When you are working on an incident in TheHive, observables are
The day three started quietly (let’s call this fact the post-social event effect) with a set of presentations around Blue Team activities. Alexandre Dulaunoy from CIRCL presented “Fail frequently to avoid disaster” or how to organically build an open threat intelligence sharing standard to keep the intelligence community free and sane!
When you have a look at the schedule of infosec conferences, the number of events is already very high. There is one at least every week around the world. So, when a new one is born and is nice, it must be mentioned. “Pass-The-Salt” (SALT means “Security And Libre Talks“)
I published the following diary on isc.sans.org: “Are Your Hunting Rules Still Working?“: You are working in an organization which implemented good security practices: log events are collected then indexed by a nice powerful tool. The next step is usually to enrich this (huge) amount of data with external sources. You
I published the following diary on isc.sans.org: “PowerShell: ScriptBlock Logging… Or Not?“: Here is an interesting piece of PowerShell code which is executed from a Word document (SHA256: eecce8933177c96bd6bf88f7b03ef0cc7012c36801fd3d59afa065079c30a559). The document is a classic one. Nothing fancy, spit executes the macro and spawns a first PowerShell command… [Read more]
And here we go with the wrap-up of the 3rd day of the SSTIC 2018 “Immodium” edition. Indeed, yesterday, a lot of people suffered from digestive problems (~40% of the 800 attendees were affected!). This will for sure remains a key story for this edition. Anyway, it was a good