path obfuscation

A new cyberattack technique allows attackers to bypass Endpoint Detection and Response (EDR) systems while using low-privileged standard user accounts. This method utilizes masquerading and path obfuscation to disguise malicious payloads as legitimate processes, misleading detection systems and analysts. Process creation events are crucial for identifying threats, with tools like Sysmon logging detailed information about process execution. Attackers can manipulate file paths to evade restrictions on placing payloads in protected directories. They create folders that mimic legitimate antivirus software paths using Unicode characters to resemble spaces. For example, a folder may be named C:Program[U+2000]Files, allowing the attacker to introduce their payload (SuperJuicy.exe) without raising alarms. The execution of the payload results in logs that appear legitimate, complicating detection efforts. This technique poses challenges for EDR systems, including confusion in log analysis, deceptive attribution to legitimate software, and prolonged dwell time for malicious payloads. Defensive strategies include enhanced logging rules to flag Unicode characters, adjusting log viewers to display these characters, and restricting folder creation permissions for standard users.