I improve security for enterprises around the world working for TrimarcSecurity.com Read the About page (top left) for information about me. :) https://adsecurity.org/?page_id=8
Sean Metcalf
Author's posts
Jul 19
Black Hat USA 2016 Talk – Beyond the MCSE: Active Directory for the Security Professional
This summer in Las Vegas, I’m speaking at Black Hat USA 2016 on Active Directory security, “Beyond the MCSE: Active Directory for the Security Professional.” This talk covers the key AD security components with specific focus on the things security professionals should know. I put this talk together because I have noticed that while Active …
Jul 06
DEF CON 24 (2016) Talk – Beyond the MCSE: Red Teaming Active Directory
This August at DEF CON 24, I will be speaking about Active Directory security evaluation in my talk “Beyond the MCSE: Red Teaming Active Directory”. This talk is focused on the Red side of AD security, specifically how to best evaluate the security of AD and quickly identify potential security issues. Whether you perform “Red …
Jun 26
So You Want to Speak at a Security Conference Part 2: How to Craft a Great Talk for a Security Conference!
This is a continuation of my earlier “So You Want to Speak at a Security Conference?” post where I cover creating a good submission to speak at a conference. I have spoken a handful of times and am definitely not an expert, though I do want to share some of the best tips I’ve discovered …
Apr 24
BSides Charm Presentation Posted: PowerShell Security: Defending the Enterprise from the Latest Attack Platform
This was my second year speaking at BSides Charm in Baltimore. Last year I spoke about Active Directory attack & defense and it was my first time speaking at a conference. 🙂 The presentation slides for my talk “PowerShell Security: Defending the Enterprise from the Latest Attack Platform” are now on the Presentations tab here …
Apr 13
What Should I Do About BadLock (CVE-2016-2118 & CVE-2016-0128/MS16-047)?
What Should I Do About BadLock (CVE-2016-2118 & CVE-2016-0128/MS16-047)? The simple answer: Patch soon. Despite the hype, which led many to assume a Remote Code Execution (RCE) was involved, this issue requires a Man-int-the-Middle (MITM) attack in order to be successful. With that noted, it is still a serious issue that requires patching. Overview Badlock …
Mar 25
DarkOperator.com: Using PowerShell to Gather Information from Active Directory
Carlos Perez (@DarkOperator) recently posted on DarkOperator.com how to use PowerShell to get data from Active Directory. He is working on an Active Directory audit PowerShell project and is documenting most of the work put into it. He also covers leveraging functions for portability and using Pester to write better PowerShell code (as well as …
Mar 14
Sneaky Active Directory Persistence #17: Group Policy
The content in this post describes a method through which an attacker could persist administrative access to Active Directory after having Domain Admin level rights for about 5 minutes. Complete list of Sneaky Active Directory Persistence Tricks posts This post explores how an attacker could leverage the built-in Active Directory management capability called Group Policy …
Mar 09
Sneaky Active Directory Persistence #16: Computer Accounts & Domain Controller Silver Tickets
The content in this post describes a method by which an attacker could persist administrative access to Active Directory after having Domain Admin level rights for about 5 minutes. All posts in my Sneaky Active Directory Persistence Tricks series This post explores how an attacker could leverage computer account credentials to persist in an enterprise …