I improve security for enterprises around the world working for TrustedSec & I am @PyroTek3 on Twitter. Read the About page (top left) for information about me. :) https://adsecurity.org/?page_id=8
Sean Metcalf
Author's posts
Apr 24 2016
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. š 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 2016
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 2016
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 codeĀ (as well as …
Mar 14 2016
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 2016
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 …
Mar 02 2016
ADSecurity.org’s Unofficial Guide to Mimikatz & Command Reference Updated for Mimikatz v2.1 alpha 20160229
ADSecurity.org’s Unofficial Guide to Mimikatz & Command Reference page is updated for the new modules/features in Mimikatz v2.1 alpha 20160229. According to Mimikatz author, Benjamin Delpy, the following updates are included in the most recent Mimikatz version(s): Mimikatz Release Date: 2/29/2016 2.1 alpha 20160229 (oe.eo) edition System Environment Variables & other stuff [new] System Environment …
Mar 01 2016
ADSecurity.org Now Sponsored by Trimarc!
Sean has founded a new security company called Trimarc focused on providing enterprise security solutions. Launching today, Trimarc’s mission is to identify ways to better protect organizations fromĀ modern threats not effectively stopped by traditional security measures. ADSecurity.org will continue thanks to Trimarc! Check out Trimarc’s capabilities at TrimarcSecurity.com.
Feb 24 2016
PowerShell Version 5 is Available for Download (again)
After about two months of Microsoft PowerShell developers working around the clock (probably), the bug that wound up causing the WMF 5.0 RTM installer to be pulled is now fixed. There was an issue with the original release dealing with PSModulePath ($Env:PSModulePath) which was reset to default after installation of the original PowerShell v5 installer. …
Feb 23 2016
Building an Effective Active Directory Lab Environment for Testing
This post is not meant to describe the ultimate lab configuration. Instead the focus is on a lab environment that can be stood up quickly and easily as a learning tool. The best way to learn about computer networking and security is to have a home lab. The great thing is that a home lab …
Feb 11 2016
Detecting Offensive PowerShell Attack Tools
At DerbyCon V (2015), I presented on Active Directory Attack & Defense and part of this included how to detect & defend against PowerShell attacks. Update: I presented at BSides Charm (Baltimore) on PowerShell attack & defense in April 2016. More information on PowerShell Security: PowerShell Security: PowerShell Attack Tools, Mitigation, & Detection The most …
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