7MS #270: IDS on a Budget - Part 4

7MS #270: IDS on a Budget - Part 4

I spent a bunch of time with Security Onion the last couple week's and have been lovin' it! I ran the install, took all the defaults, ran the updates, and pretty much just let it burn in on my prod (home) environment.

After a few days, I went back to check the Security Onion dashboard to check the alerts. There was a bunch of benign stuff (computers pinging each other, Dropbox broadcasting to the network) but also a couple interesting finds - SO caught one of my VMs downloading (intentionally) Invoke-Mimikatz. The dashboard allows you to see transcripts of file downloads like this, as well as a tool called Network Miner to extract a copy of the downloaded file for further analysis.

One thing the SO didn't pick up on was the DNS-based C2 tunnel I setup on a test victim client. However, it turns out RITA works great for exactly this type of analysis - it reported the huge number of DNS requests from my victim client to the C2 server. Very helpful info for an incident response situation!

Jaksot(683)

7MS #11: Overtraining your iPhone Touch ID (video)

7MS #11: Overtraining your iPhone Touch ID (video)

In this episode I totally throw my subscribers for a loop and do a VIDEO podcast about overtraining your Touch ID on your iPhone. Download: 7MS #11: Overtraining your iPhone Touch ID (video) Show notes: I first read about this from Steve Gibson of GRC at https://www.grc.com/sn/sn-440.htm. But I was listening to the audio-only version…

12 Huhti 20143min

7MS #10: Information Security for the Whole Family – part 2 (audio)

7MS #10: Information Security for the Whole Family – part 2 (audio)

In this episode I talk more about some infosec-y things I’m doing on the home front to nurture a security culture (if you will) with my wife and kids. Download: Episode 10: Information Security for the Whole Family – part 2 (audio) Show notes: If you have kids and are considering a tablet for them,…

5 Huhti 20147min

7MS #9: Information Security for the Whole Family (audio)

7MS #9: Information Security for the Whole Family (audio)

In this episode I talk about how being an infosec guy has ruined my family’s life (well, not really) Download: Episode 9: Information Security for the Whole Family (audio) Show notes: To keep peace in your household, I’d recommend making sweeping network changes when your family members aren’t around (i.e. changing the wifi password :-)…

29 Maalis 20147min

7MS #8: CISSP – Is That the Cert for Me? (audio)

7MS #8: CISSP – Is That the Cert for Me? (audio)

In this episode I talk about my experience prepping for the CISSP exam. Download: Episode 8: CISSP – Is That the Cert for Me? (audio) Show notes: I used this book as my primary study tool. It comes with a whole slew of companion materials like a pre-assessment test, flashcards and 3 full practice exams.…

22 Maalis 20147min

7MS #7: External Vulnerabilities that Byte (audio)

7MS #7: External Vulnerabilities that Byte (audio)

Episode lucky #7!!! In this episode I talk about external network vulnerabilities that we see in many of our assessments – some of which are pretty easy to clear up. Download: Episode 7: External Vulnerabilities that Byte (audio) Show notes: RC4 – a risk that we find just about anywhere SSL is used, but in…

15 Maalis 20147min

7MS #6: Fun Firewall Rules – part 2 (audio)

7MS #6: Fun Firewall Rules – part 2 (audio)

In this episode I continue talking about some basic firewall rules that many organizations don’t have in place. Download: Episode 6: Fun Firewall Rules – part 2 (audio) Show notes: Limit outbound DNS requests to just the ISP servers (or whatever external servers you use). Anytime a firewall rule is changed, perform a vulnerability scan…

8 Maalis 20147min

7MS #5: Fun Firewall Rules – part 1 (audio)

7MS #5: Fun Firewall Rules – part 1 (audio)

In this episode I talk about some basic firewall rules that many organizations don’t have in place. Download: Episode 5: Fun Firewall Rules – part 1 (audio) Show notes: Block outbound port TCP 25 for all devices except your mail server(s). If you use a third party mail filter like Postini or Securence, ensure that…

1 Maalis 20147min

7MS #4: Patch Strategies: Part Deux (audio)

7MS #4: Patch Strategies: Part Deux (audio)

In this episode I continue talking about some dos and donts of patch strategies – this time talking about enterprise level gear. Download: Episode 4: Patch Strategies: Part Deux (audio) Show notes: There are often two trains of thought in regards to enterprise gear patching (like routers, switches, firewalls). 1. If it ain’t broke, don’t…

22 Helmi 20146min

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