Reproducing the Microsoft Exchange Proxylogon Exploit Chain

proxylogon hero image

Introduction In recent weeks, Microsoft has detected multiple 0-day exploits being used to attack on-premises versions of Microsoft Exchange Server in a ubiquitous global attack. ProxyLogon is the name given to CVE-2021-26855, a vulnerability on Microsoft Exchange Server that allows an attacker to bypass authentication and impersonate users. In the attacks observed, threat actors used […]

Red Team Local Privilege Escalation – Writable SYSTEM Path Privilege Escalation – Part 1

Overview In this two-part series we discuss two Windows local privilege escalation vulnerabilities that we commonly identify during red team operations. These issues are of particular interest due to their prevalence within organizations with mature security programs. Furthermore, exploitation of the issue is unlikely to trigger a detection within commonly used endpoint and network monitoring […]

Getting Started with Praetorian’s ATT&CK Automation

Earlier this month, Praetorian released its automation for emulating adversary tactics, techniques, and procedures (TTPs) based on the MITRE ATT&CK framework. We’ve gotten a number of requests from users asking for more detailed instructions on how to get started with the tool. This blog post accompanies the recently released video tutorial.

Process Injection and Process Hollowing (ATT&CK T1055 & T1093)

We are releasing Vulcan, a tool to make it easy and fast to test various forms of injection. All of the techniques included are already public. Vulcan brings them together in a single tool to test endpoint detection and response (EDR) coverage so that you can quickly identify detection gaps. This tool can be used as a test-harness to identify gaps so that efforts can be focused on detecting holes.