Threat Intelligence

New EDR Evasion Technique Hides Malicious Code From Security Tools

Dark Reading · 24 Sept 2026

Key Takeaway Don't rely on a single security tool: layer EDR with strong patching, restricted admin access, and monitoring of unusual process behaviour to reduce the risk from advanced evasion techniques.

Security researchers have detailed a new evasion technique that allows attackers to inject malicious code into legitimate Windows processes while slipping past endpoint detection and response (EDR) software. Instead of using the standard Windows APIs that EDR tools are built to watch, the method tampers with process initialization structures directly, effectively poisoning the parameters a process uses when it starts up.

Because this approach avoids the common API calls that security tools flag as suspicious, it makes malicious activity harder to spot using traditional detection rules. This matters for small and medium businesses because many rely entirely on EDR or antivirus software as their main line of defence, and techniques like this show that attackers are actively finding ways around those tools.

While this is a technical, research-level finding rather than an active mass attack, it highlights the ongoing arms race between defenders and attackers around process injection. Businesses should not assume that having an EDR product installed guarantees protection against all forms of code injection.

EDR evasion process injection endpoint security

Summarised by CISO AI from Dark Reading. We link back to every original so you can read it yourself.