7MS #640: Tales of Pentest Pwnage – Part 63

7MS #640: Tales of Pentest Pwnage – Part 63

This was my favorite pentest tale of pwnage to date! There’s a lot to cover in this episode so I’m going to try and bullet out the TLDR version here:

  • Sprinkled farmer files around the environment
  • Found high-priv boxes with WebClient enabled
  • Added “ghost” machine to the Active Directory (we’ll call it GHOSTY)
  • RBCD attack to be able to impersonate a domain admin using the CIFS/SMB service against the victim system where some higher-priv users were sitting
  • Use net.py to add myself to local admin on the victim host
  • Find a vulnerable service to hijack and have run an evil, TGT-gathering Rubeus.exe – found that Credential Guard was cramping my style!
  • Pulled the TGT from a host not protected with Credential Guard
  • Figured out the stolen user’s account has some “write” privileges to a domain controller
  • Use rbcd.py to delegate from GHOSTY and to the domain controller
  • Request a TGT for GHOSTY
  • Use getST.py to impersonate CIFS using a domain admin account on the domain controller (important thing here was to specify the DC by its FQDN, not just hostname)
  • Final move: use the domain admin ccache file to leverage net.py and add myself to the Active Directory Administrators group

Avsnitt(684)

7MS #492: Tales of Pentest Pwnage - Part 29

7MS #492: Tales of Pentest Pwnage - Part 29

Hello friends! We're long overdue for a tale of pentest pwnage, and this one is a humdinger! It's actually kind of three tales in one, focusing on pentesting wins using: Manual "open heart surgery" on the root of the Active Directory domain The new totally rad DHCP poisoning module of Responder An opportunity to abuse GPOs with SharpGPOAbuse (P.S. we talked about this tool about a year ago in episode 441)

28 Okt 202156min

7MS #491: Interview with Louis Evans of Arctic Wolf

7MS #491: Interview with Louis Evans of Arctic Wolf

Today we're joined by Louis Evans of Arctic Wolf to talk about all things cyber insurance, including: History on cyber insurance - who's buying it, what it does and doesn't cover, and when it started to be something you didn't want to leave home without What are insurance companies asking/demanding of customers before writing a cyber insurance policy? What basic things organizations can do to reduce malware/ransomware incidents (whether they are considering a cyber insurance policy or not)? How do I evaluate the various insurance carriers out there and pick a good one?

20 Okt 202152min

7MS #490: Desperately Seeking a Super SIEM for SMBs - Part 4

7MS #490: Desperately Seeking a Super SIEM for SMBs - Part 4

Hey friends! Today we're going to recap the SIEM/SOC players we've evaluated so far (Arctic Wolf, Elastic, Sumo Logic, Milton Security) and then talk about a new contender that was brought to our attention: Blumira (not a sponsor, but I'm really digging what I'm seeing/hearing/experiencing thus far)!

13 Okt 202142min

7MS #489: Ping Castle

7MS #489: Ping Castle

Today we're talking about Ping Castle (not a sponsor), an awesome tool for enumerating tons of info out of your Active Directory environment and identifying weaknesses, misconfigurations and paths to escalation! It's wonderful for both red and blue teamers. Some of Ping Castle's cool features include being able find: Kerberoastable and ASREPRoastable users Plain text passwords lingering in Group Policy Objects Users with never-expiring passwords Non-supported versions of Windows Machines configured with unconstrained delegation Attack and escalation paths to Domain Admins

6 Okt 202158min

7MS #488: How to Succeed in Business Without Really Crying - Part 10

7MS #488: How to Succeed in Business Without Really Crying - Part 10

Today we continue our series focused on building a security consultancy and talk about: A phishing campaign that went off the rails, and lessons learned from it First impressions of an awesome tool to help add MFA to your Active Directory (not a sponsor) A tangent story about how my wife brought some thieves to justice!

29 Sep 202143min

7MS #487: Light Pentest eBook Announcement!

7MS #487: Light Pentest eBook Announcement!

Hey friends! Today I've got some exciting personal/professional news to share: our Light Pentest eBook - which is a practical, step-by-step playbook for internal network penetration testing - is now available for purchase! Note: this eBook and the Light Pentest LITE training are two separate things, but do cover some of the same topics. The Light Pentest eBook covers: Grabbing and analyzing packet captures Abusing insecure network protocols Exploiting (the lack of) SMB signing Capturing, cracking and passing hashes Locating high-value targets with DNS zone transfers Exploiting vulnerable Group Policy Objects Scraping screenshots of Web interfaces with WitnessMe Finding and cracking "Kerberoastable" and "ASREPRoastable" Active Directory accounts Dumping, passing and cracking hashes from domain controllers The Light Pentest eBook is available now for $7.77, and by purchasing it you are entitled to all future editions/revisions going forward.

28 Sep 20217min

7MS #486: Interview with Matt Quammen of Blue Team Alpha

7MS #486: Interview with Matt Quammen of Blue Team Alpha

Today our good buddy Joe Skeen and I virtually sit down with Matt Quammen of Blue Team Alpha to talk about all things incident response! Topics covered include: Top 5 things to do and not do during ransomware event Challenges when responding to ransomware events Opportunities to break into infosec/IR The value of tabletop exercises, and some great ideas for conducting your own Incident response stress and success stories Cyber insurance - worth it or not?

22 Sep 202139min

7MS #485: Interview with Christopher Fielder

7MS #485: Interview with Christopher Fielder

Today our friend Christopher Fielder from Arctic Wolf is back for an interview four-peat! We had a great chat about making sense of vendor alphabet soup terms (like SIEM, SOC, EDR/MDR/XDR, ML, AI and more!), optimizing your SOC to "see" as much as possible, tackling vendor/customer communication problems, and simplifying security product pricing to make purchases less stressful for customers! And don't forget to check out Christopher's first, second and third interviews with 7MS.

15 Sep 202152min

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