Identity Threat Detection & Response

Identity Attack Watch: November 2021

Identity Attack Watch: November 2021

  • Semperis Research Team

Cyberattacks targeting Active Directory are on the upswing, putting pressure on AD, identity, and security teams to monitor the constantly shifting AD-focused threat landscape. To help IT pros better understand and guard against attacks involving AD, the Semperis Research Team offers this monthly roundup of recent cyberattacks that used AD…

Why 86% of Organizations Are Increasing Their Investment in Active Directory Security

Why 86% of Organizations Are Increasing Their Investment in Active Directory Security

  • Michele Crockett

New EMA Research Highlights the Rise of Active Directory Exploits Active Directory is getting a lot of buzz in business and tech news outlets lately—but not in a good way. AD continues to be a prime target for cybercriminals: Just a few recent examples include AD-related attacks on Sinclair Broadcast…

Identity Attack Watch: October 2021

Identity Attack Watch: October 2021

  • Semperis Research Team

Cyberattacks targeting Active Directory are on the upswing, putting pressure on AD, identity, and security teams to monitor the constantly shifting AD-focused threat landscape. To help IT pros better understand and guard against attacks involving AD, the Semperis Research Team offers this monthly roundup of recent cyberattacks that used AD…

How Attackers Can Use Active Directory Primary Group Membership for Defense Evasion

How Attackers Can Use Active Directory Primary Group Membership for Defense Evasion

  • Yuval Gordon

Identity systems—particularly Active Directory, which is the primary identity store for most businesses—are constantly under attack by cybercriminals because they are the gateway to an organization’s critical information systems, including valuable customer data. Here we'll explore a little-known Discretionary Access Control List (DACL) tactic that attackers can use to hide…

Identity Attack Watch: August 2021

Identity Attack Watch: August 2021

  • Semperis Research Team

Cyberattacks targeting Active Directory are on the upswing, putting pressure on AD, identity, and security teams to monitor the constantly shifting AD-focused threat landscape. To help IT pros better understand and guard against attacks involving AD, the Semperis Research Team offers this monthly roundup of recent cyberattacks that used AD…

Now’s the Time to Rethink Active Directory Security

Now’s the Time to Rethink Active Directory Security

  • Guido Grillenmeier

Note: This article was first published in the July 2021 issue of the monthly newsletter Network Security, and appears here with the permission of the publisher.  Winding back the clock 21 years to the turn of the millennium would be astrange experience, given the world we live in today. Even…

Detecting and Mitigating the PetitPotam Attack on Windows Domains

Detecting and Mitigating the PetitPotam Attack on Windows Domains

  • Ran Harel

Update August 10, 2021: Microsoft released a patch that partially covers the initial PetitPotam authentication coercion through MS-EFSR.  Fresh on the heels of PrintNightmare and SeriousSam, we now have another high-impact attack vector on Windows domains that is relatively easy to carry out and difficult to mitigate. What is now…

Identity Attack Watch: July 2021

Identity Attack Watch: July 2021

  • Semperis Research Team

Cyberattacks targeting Active Directory are on the upswing, putting pressure on AD, identity, and security teams to monitor the constantly shifting AD-focused threat landscape. To help IT pros better understand and guard against attacks involving AD, the Semperis Research Team offers this monthly roundup of recent cyberattacks that used AD…