7MS #47: Logging and Alerting RELOADED (audio)

Today I'm joined by Matt Duench (LinkedIn / Twitter), who has a broad background in technology and security - from traveling to over 40 countries around the world working with telecom services, to his current role at Arctic Wolf where he leads product marketing for their managed risk solution. Matt chatted with me over Skype about a wide variety of security topics, including: Corporate conversations around security have changed drastically in such a short time - specifically, security is generally no longer perceived as a cost center. So why are so many organizations basically still in security diapers as far as their maturity? Why is it still so hard to find “bad stuff” on the network? What are some common security mistakes you wish you could wave a magic wand and fix for all companies? The beauty of the CIS Top 20 and how following even the top 5 controls can stop 85% of attacks. Low-hanging hacker fruit that all organizations should consider addressing, such as: Disabling IPv6 Using a password manager Turning on multi-factor authentication Don’t write down your passwords! Have a mail transport rule that marks external mail as “EXTERNAL” so it jumps out to people Consider an additional rule to stop display name spoofing (h/t to Rob on Slack!) Why you should be concerned about corporate account takeover, and how to better protect yourself and your company against this attack vector I also asked Matt a slew of questions that many of you submitted via Slack: More info under the show notes for this episode at 7ms.us!

26 Helmi 20201h 12min

It’s episode 401 and we’re having fun, right? Some things we cover today: The Webinar version of the DIY Pwnagotchi evening will be offered in Webinar format on Tuesday, March 10 at 10 a.m. A quick house fire update - we’re closer to demolition now! I finally got a new guitar! Besides that, I’ve got a wonderful tale of pentest pwnage for you. Warning: this is a TBC (to be continued) episode in that I don’t even know how it will shake out. I’m honestly not sure if we’ll get DA! Here are the highlights: I think in the past I might've said unauthenticated Nessus scans weren't worth much, but this test changed my mind. If you can't dump local hashes with CrackMapExec, try SecretsDump! ./secretsdump.py -target-ip {IP of target machine} localhost/{username}@{target IP} If you're relaying net user commands (or just typing them from a relayed shell), this one-liner is a good way to quickly add your user to local admins and the Remote Desktop Users group: net user /add ladmin1 s00p3rn4ughtyguy! /Y & net localgroup Administrators ladmin1 /add & net localgroup "Remote Desktop Users" ladmin1 /add Trying to RDP into a box protected with Duo MFA? If you can edit the c:\windows\system32\drivers\etc\hosts file, you might be able change the Duo authentication server from api-xxxxxxx.duosecurity.com to 127.0.0.1 and force authenetication to fail open! Source: Pentest Partners In general, keep an eye on CrackMapExec's output whenever you use the '-x' flag to run commands. If the system is "hanging" on a command for a while and then gives you NO output and just drops you back at your Kali prompt, the command might not be running at all due to something else on the system blocking your efforts. More on today's show notes at 7ms.us!

21 Helmi 20201h 1min

Wow, happy 400th episode everybody! Also, happy SIXTH birthday to the 7MS podcast! Today I've got a really fun tale of internal network pentest pwnage to share with you, as well as a story about a "poop-petrator." Key moments and takeaways include: Your target network might have heavy egress filtering in place. I recommend doing full apt-get update and apt-get upgrade and grabbing all the tools you need (may I suggest my script for this?). If the CrackMapExec --sam flag doesn't work for you, give secretsdump a try, as I ran it on an individual Win workstation and it worked like a champ! If the latest mimikatz release doesn't rip out passwords for you, try the release from last August. For whatever reason (thanks 0xdf) for the tip! If your procdumps of lsass appear to be small, endpoint protection might be getting in the way! You might be able to figure out what's running - and stop the service(s) - with CrackMapExec and the -x 'tasklist /v' flag. If you need to bypass endpoint protection, don't be afraid to go deep into the Google search results. Unfortunately, I think that's all I can say about that, as vendors seem to get snippy about talking about bypasses publicly. Has 7MS helped you in your IT and security career? Please consider buying me a coffee!

14 Helmi 20201h 4min

This podcast is sponsored by Arctic Wolf, whose Concierge Security teams Monitor, Detect and Respond to Cyber threats 24/7 for thousands of customers around the world. Arctic Wolf. Redefining cybersecurity. Visit Arcticwolf.com/7MS to learn more. Believe it or not I'm pentesting your stuff I never thought I could feel so free-hee-hee I compromised one of your Domain Admins Who it could be? The guy with "Password123" In today's episode we're talking all about building your own password-cracking rig! "Wait a minute!" you say. "Are you abandoning the Paperspace password cracking in the cloud thing?" Nope! I'm just bringing that methodology "in house" for a little better opsec and also because last year on Paperspace I spent thousands of dollars. First things first - here's the hardware I ended up with: Inland Premium 512GB SSD 3D NAND M.2 2280 PCIe NVMe 3.0 x4 Internal Solid State Drive [Intel Core i5-9400F Desktop Processor 6 Core up to 4.1GHz Without Processor Graphics LGA1151 (Intel 300 Series chipset)](https://www.microcenter.com/product/602028/intel-core-i5-9400f-desktop-processor-6-core-up-to-41ghz-without-processor-graphics-lga1151-(intel-300-series-chipset) ASUS ROG Strix Z390-H Gaming LGA 1151 ATX Intel Motherboard EVGA SuperNOVA 1200P2 1200 Watt 80 Plus Platinum Modular Power Supply For a full shopping list and more notes, head to 7ms.us!

7 Helmi 202042min

This podcast is sponsored by Arctic Wolf, whose Concierge Security teams Monitor, Detect and Respond to Cyber threats 24/7 for thousands of customers around the world. Arctic Wolf. Redefining cybersecurity. Visit Arcticwolf.com/7MS to learn more. I'll be your Raspberry Pi zero baby I don't know what else to say I'll keep bad stuff off of your network I will do it both night and day Today I talk about four cool Raspberry Pi projects that will help you better secure your network. First off though, I give a shout out to my son Atticus who I want to be more like because he doesn't give a rat's behind what other people think of him! The cool Pi-based projects I love are: Pi-Hole is a black hole for Internet advertisements and it literally installs with just a few commands: git clone --depth 1 https://github.com/pi-hole/pi-hole.git Pi-hole cd "Pi-hole/automated install/" sudo bash basic-install.sh Pwnagotchi is a cute little devil who exists only to capture WPA handshakes! I did a whole episode on it, and invite you to build a DYI Pwnagotchi with me live on Feb 10. How to use a Raspberry Pi as a Network Sensor is a really cool Webinar I watched (brought to us by our pals at BHIS and ActiveCountermeasures) that shows you how to use a Pi with an external drive to install Bro and other tools to help you find bad stuff on your network. CanaryPi is freaking sweet and can detect NBNS/LLMNR/mDNS spoofing as well as port-scanning, yeah baby! And coming soon (hopefully): mitm6 detection! Has 7MS helped you in your IT and security career? Please consider buying me a coffee!

30 Tammi 202050min

This podcast is sponsored by Arctic Wolf, whose Concierge Security teams Monitor, Detect and Respond to Cyber threats 24/7 for thousands of customers around the world. Arctic Wolf. Redefining cybersecurity. Visit Arcticwolf.com/7MS to learn more. I'm working on a new security song called Don't Let the Internet Get You Down, and the chorus will go something like this: Don't let the Internet get you down It's full of trolls and 10 year olds and adolescent clowns So let their words roll off of you, like water off a duck To prove to them that you don't give a darn On a more serious note, here are some opsec tips that hopefully will help you as a security consultant: Good contracts - make sure your SOWs have lots of CYA verbiage to protect you in case something breaks, your assessment schedule needs to be adjusted, etc. Also, consider verbiage that says you'll only retain client testing artifacts (hashes, vuln scans, etc.) for a finite amount of time. Scope - make sure you talk about scope, both in written and verbal form, often! Also, a Nessus scanning tip: use the nessusd.rules file to not scan any IPs the client doesn't want touched. That way Nessus won't scan those IPs even if you try to force it to! Send information to/from clients safely - consider forcing MFA on your file-sharing portals, as well as a retention policy so that files "self destruct" after X days. ....and more on today's episode (see 7ms.us for more show notes)! Has 7MS helped you in your IT and security career? Please consider buying me a coffee!

23 Tammi 202036min

This podcast is sponsored by Arctic Wolf, whose Concierge Security teams Monitor, Detect and Respond to Cyber threats 24/7 for thousands of customers around the world. Arctic Wolf. Redefining cybersecurity. Visit Arcticwolf.com/7MS to learn more. In last week's episode I was very close to potentially synching up some very sensitive data with my super secret back door account. In this episode, we resolve the cliffhanger and talk about: How I don't remember lyrics or titles to songs - even the ones I love - such as My Prerogative. That's why Jack Black is my spirit animal, and he's awesome for singing Elton John songs right to Elton John If you get DA (relatively) quickly, consider pivoting to a network assessment and crack hashes with secretsdump, test egress filtering, run Network Detective and more Once you've cracked all the hashes you can, run it through hashcombiner and Pipal like this: python /opt/hashcombiner/hash_combiner.py user_hash hash_password | sort > combined.txt cut -d ':' -f 2 combined.txt > passwords.txt ruby /opt/pipal/pipal.rb passwords.txt > pip.txt The procdump + lsass trick is still really effective (though sometimes AV gobbles it) (See full show notes at 7ms.us!)

15 Tammi 202053min

This podcast is sponsored by Arctic Wolf, whose Concierge Security teams Monitor, Detect and Respond to Cyber threats 24/7 for thousands of customers around the world. Arctic Wolf. Redefining cybersecurity. Visit Arcticwolf.com/7MS to learn more. In today's tale of pentest pwnage I got to try some tools and tricks for the first time! Here are the key points/takeaways from this test: It's great to have additional goals to achieve in a network pentest outside of just "get DA" PayloadsAllTheThings has a great section on Active Directory attacks Using mitm6 and ntlmrelayx is now my new favorite thing thanks to The Cyber Mentor's fantastic video showing us exactly how to launch this attack! If you're scared of running mitm6 and accidentally knocking folks off your network, setup your Kali box to reboot in a few minutes just to be safe. Do something like: shutdown -r +15 "Rebooting in 15 minutes just in case I mitm6 myself right off this box!" When mitm6+ntlmrelay dumps out a series of html/json files with lists of users, groups, etc., read through them! Sometimes they can include treats...like user passwords in the comment fields! Use crackmapexec smb IP.OF.DOMAIN.CONTROLLER -u username -p password to verify if your domain creds are good! There are a bunch of people I need to thank because their tools/encouragement/advice played a part in making the test successful. See today's show notes on 7ms.us for more info!

9 Tammi 20201h 5min