On machines with Intel Processor Trace enabled and supported, CrowdStrike said its Falcon sensor will enable execution tracing for a selected set of programs. The program behavior visibility provided by this feature makes it useful for security exploit detection and investigation as well,” CrowdStrike explained. The primary usage scenario is to trace an executable while it runs, store the trace on the disk and afterward analyze it to reproduce the exact sequence of instructions that has been executed. “Intel PT allows the CPU to continuously write information about the currently executing code into a memory buffer, which can be used to reconstruct the exact control flow.
Intel PT records code execution on the processor and is typically used for performance diagnosis and analysis but CrowdStrike has found a way to leverage the telemetry to spot previously undetectable signs of malicious activity. The new detection technology has been fitted into version 6.27 of CrowdStrike’s Falcon sensor and is available on systems with Intel CPUs, sixth generation or newer, running Windows 10 RS4 or later.Īccording to a note from CrowdStike security engineers, the new tech uses Intel Processor Trace (Intel PT), a CPU feature that delivers extensive telemetry useful for the detection and prevention of code reuse exploits. “Once activated, the new feature detects exploits by analyzing suspicious operations associated with exploit techniques, such as shellcode injection, return-oriented programming,” CrowdStrike said.
Anti-malware giant CrowdStrike says it is using telemetry from Intel processors to help detect and thwart sophisticated software exploits that bypass traditional OS-based defenses.ĬrowdStrike said the CPU telemetry is powering a new Hardware Enhanced Exploit Detection feature in its Falcon platform and will help detect complex attack techniques that are notoriously hard to identify and expand memory safety protections on older PCs that lack modern anti-exploit mitigations.
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