Detecting HAFNIUM Exchange Exploitation Campaign with ReaQta-Hive

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 […]

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