A hunting query to identify post-exploitation activities Customized Detection Strategy (DeStra) to detect future exploitation attempts On the 11th of March, Microsoft reported an active exploitation campaign of several zero-day vulnerabilities affecting on-premise versions of Microsoft Exchange Servers allegedly from a state-sponsored adversary, HAFNIUM. The attack starts by exploiting vulnerabilities — CVE-2021-26855, CVE-2021-26857, CVE-2021-26858, and …

MuddyWater is a threat actor that caught our attention for their extensive use of “Living off the Land” attacks in a targeted campaign aimed at the Middle East. During our investigation we reconstruct the evolution of the vectors used and how the group operates to  target their victims, evade detections and move laterally inside the compromised …