Threats Tagged 'fortinet ems'

In May 2026, threat actors exploited CVE-2026-35616, an improper access control vulnerability in Fortinet EMS versions 7.4.5 through 7.4.6, to deploy EKZ Stealer within an energy sector organization. The malware was disguised as FortiEndpoint_Patch.exe and harvested browser credentials from Chromium-based browsers and Firefox before exfiltrating data via PowerShell to a command-and-control server. EKZ Stealer employs sophisticated compiler-based obfuscation techniques including indirect jumps, control-flow flattening, and XOR-based string encryption to evade analysis. The technical analysis demonstrates how Binary Ninja Workflows can be leveraged to defeat these obfuscation methods by matching repeatable Intermediate Language patterns and rewriting LLIL/MLIL expressions to restore readable control flow, significantly accelerating malware reverse engineering efforts.