Bears Teach Network Security Monitoring Principles

Every once in a while it's good to be reminded of certain principles. In my first book I outlined three lessons I've learned while monitoring intruders. Sometimes threats in nature provide examples of these lessons.

Sguil developer Bamm Visscher pointed me to these images, which I have cropped and annotated for your network security monitoring enjoyment.

NSM Principle 1: Some intruders are smarter than you are.



NSM Principle 2: Intruders are unpredictable.



NSM Principle 3: Prevention eventually fails.



Hence, the need for monitoring, e.g., these photos!

Thank you to GeekBase for posting these -- I hope you prefer me not linking to the photos directly, thereby saving your bandwidth!

Comments

Anonymous said…
Hilarious, but true! We've all seen it, and/or been subject to it ourselves. Many times, it's due to what we think we know about the infrastructure...

H. Carvey
"Windows Forensics and Incident Recovery"
http://www.windows-ir.com
http://windowsir.blogspot.com
7:16 AM
Anonymous said…
Hi. Can you change it back so that full posts are in your rss feed? Thanks.
11:41 AM
Richard Bejtlich said…
Again, I have not changed anything with my RSS feeds. You can get them from Atom2RSS or Feedburner. Atom2RSS looks like it is giving an error now, but Feedburner is fine.
1:20 PM
Anonymous said…
This comment has been removed by a blog administrator.
12:41 PM
Post a Comment

Popular posts from this blog

Zeek in Action Videos

Image
This is a quick note to point blog readers to my Zeek in Action YouTube video series for the Zeek network security monitoring project .  Each video addresses a topic that I think might be of interest to people trying to understand their network using Zeek and adjacent tools and approaches, like Suricata, Wireshark, and so on.  I am especially pleased with Video 6 on monitoring wireless networks . It took me several weeks to research material for this video. I had to buy new hardware and experiment with a Linux distro that I had not used before -- Parrot .  Please like and subscribe, and let me know if there is a topic you think might make a good video.
Read more

MITRE ATT&CK Tactics Are Not Tactics

Image
Just what are "tactics"? Introduction MITRE ATT&CK  is a great resource, but something about it has bothered me since I first heard about it several years ago. It's a minor point, but I wanted to document it in case it confuses anyone else. The MITRE ATT&CK Design and Philosophy document from March 2020 says the following: At a high-level, ATT&CK is a behavioral model that consists of the following core components: • Tactics, denoting short-term, tactical adversary goals during an attack; • Techniques, describing the means by which adversaries achieve tactical goals; • Sub-techniques, describing more specific means by which adversaries achieve tactical goals at a lower level than techniques; and • Documented adversary usage of techniques, their procedures, and other metadata. My concern is with MITRE's definition of "tactics" as "short-term, tactical adversary goals during an attack," which is oddly recursive. The key word in the tacti
Read more

New Book! The Best of TaoSecurity Blog, Volume 4

Image
  I've completed the TaoSecurity Blog book series . The new book is  The Best of TaoSecurity Blog, Volume 4: Beyond the Blog with Articles, Testimony, and Scholarship .  It's available now for Kindle , and I'm working on the print edition.  I'm running a 50% off promo on Volumes 1-3 on Kindle through midnight 20 April. Take advantage before the prices go back up. I described the new title thus: Go beyond TaoSecurity Blog with this new volume from author Richard Bejtlich. In the first three volumes of the series, Mr. Bejtlich selected and republished the very best entries from 18 years of writing and over 18 million blog views, along with commentaries and additional material.  In this title, Mr. Bejtlich collects material that has not been published elsewhere, including articles that are no longer available or are stored in assorted digital or physical archives. Volume 4 offers early white papers that Mr. Bejtlich wrote as a network defender, either for technical or pol
Read more