Security Onion 2.3.100 20220301 Hotfix Now Available!

We recently released Security Onion 2.3.100 and a couple of hotfixes:
https://blog.securityonion.net/2022/01/security-onion-23100-now-available.html
https://blog.securityonion.net/2022/02/security-onion-23100-20220202-hotfix.html
https://blog.securityonion.net/2022/02/security-onion-23100-20220203-hotfix.html

Today, we are releasing another hotfix:
https://docs.securityonion.net/en/2.3/release-notes.html#hotfix-20220301-changes

If you are currently running 2.3.100 and using Cases, you will want to update to this hotfix to avoid any accidental deletion of Cases data.

If you haven't updated recently, then you should review all links above so that you are aware of all recent changes.

New Installations

If you want to perform a new installation, please review the documentation and then you can find instructions here:
https://docs.securityonion.net/en/2.3/download.html

Existing 2.3 Installations

If you have an existing 2.3 installation that you want to update, please see:
https://docs.securityonion.net/en/2.3/soup.html

Security Onion 16.04

If you are still running Security Onion 16.04, please note that it is past End Of Life. Please take this opportunity to upgrade to Security Onion 2:
https://docs.securityonion.net/en/2.3/appendix.html

Questions or Problems

If you have questions or problems, please see our community support forum guidelines:
https://docs.securityonion.net/en/2.3/community-support.html

You can then find the community support forum at:
https://securityonion.net/discuss

Quick Malware Analysis: Emotet Epoch 5 and Cobalt Strike pcap from 2022-02-10

Thanks to Brad Duncan for sharing this pcap!
https://www.malware-traffic-analysis.net/2022/02/10/index.html

We did a quick analysis of this pcap on the latest version of Security Onion via so-import-pcap:
https://docs.securityonion.net/en/2.3/so-import-pcap.html

The screenshots below show some of the interesting Suricata alerts, Zeek logs, session transcripts, and observables.

About Security Onion

Security Onion is a versatile and scalable platform that can run on small virtual machines and can also scale up to the opposite end of the hardware spectrum to take advantage of extremely powerful server-class machines.  Security Onion can also scale horizontally, growing from a standalone single-machine deployment to a full distributed deployment with tens or hundreds of machines as dictated by your enterprise visibility needs.

To learn more about Security Onion, please see:
https://securityonion.net
https://securityonion.net/docs

More Samples

Find all of our Quick Malware posts at:
https://blog.securityonion.net/search/label/quick%20malware%20analysis

Screenshots

Click the first image to start the screenshot tour:

Quick Malware Analysis: Emotet Epoch 5 and Cobalt Strike pcap from 2022-02-08

Thanks to Brad Duncan for sharing this Emotet Epoch 5 pcap!
https://www.malware-traffic-analysis.net/2022/02/08/index.html

We did a quick analysis of this pcap on the latest version of Security Onion via so-import-pcap:
https://docs.securityonion.net/en/2.3/so-import-pcap.html

The screenshots below show some of the interesting Suricata alerts, Zeek logs, session transcripts, and observables.

About Security Onion

Security Onion is a versatile and scalable platform that can run on small virtual machines and can also scale up to the opposite end of the hardware spectrum to take advantage of extremely powerful server-class machines.  Security Onion can also scale horizontally, growing from a standalone single-machine deployment to a full distributed deployment with tens or hundreds of machines as dictated by your enterprise visibility needs.

To learn more about Security Onion, please see:
https://securityonion.net
https://securityonion.net/docs

More Samples

Find all of our Quick Malware posts at:
https://blog.securityonion.net/search/label/quick%20malware%20analysis

Screenshots

Click the first image to start the screenshot tour:

Quick Malware Analysis: Emotet Epoch 4 and Cobalt Strike pcap from 2022-02-08

Thanks to Brad Duncan for sharing this Emotet Epoch 4 pcap!
https://www.malware-traffic-analysis.net/2022/02/08/index.html

We did a quick analysis of this pcap on the latest version of Security Onion via so-import-pcap:
https://docs.securityonion.net/en/2.3/so-import-pcap.html

The screenshots below show some of the interesting Suricata alerts, Zeek logs, session transcripts, and observables.

About Security Onion

Security Onion is a versatile and scalable platform that can run on small virtual machines and can also scale up to the opposite end of the hardware spectrum to take advantage of extremely powerful server-class machines.  Security Onion can also scale horizontally, growing from a standalone single-machine deployment to a full distributed deployment with tens or hundreds of machines as dictated by your enterprise visibility needs.

To learn more about Security Onion, please see:
https://securityonion.net
https://securityonion.net/docs

More Samples

Find all of our Quick Malware posts at:
https://blog.securityonion.net/search/label/quick%20malware%20analysis

Screenshots

Click the first image to start the screenshot tour: