Magic Packets & Stealth Backdoors: The Art of Detection Engineering

Magic Packets & Stealth Backdoors: The Art of Detection Engineering

From DISCARDED: Tales From the Threat Research Trenches by Proofpoint

April 14, 2026 · 34 min · Season 1 · Episode 99

About this episode

The episode explores the stealthy world of backdoors and malware detection with insights from a Senior Threat Detection Engineer at Proofpoint.

Send us fan mail! Hello to all our Cyber Daffodils! Host Selena Larson, and guest Host, Tim Kromphardt, sit down with Stuart Del Caliz, Senior Threat Detection Engineer at Proofpoint, to unpack the stealthy world of backdoors, malware detection, and the “secret signals” threat actors use to stay hidden. From magic packets and port knocking to sophisticated backdoors like BPFdoor, Stuart shares how attackers design covert communication methods—and how defenders work to uncover them without ove...

People in this episode

Host: Selena Larson

Guest: Tim Kromphardt

Topics covered

  • detection engineering
  • malware detection
  • backdoors
  • cybersecurity
  • threat actors
  • covert communication

Keywords

  • magic packets
  • stealth backdoors
  • BPFdoor
  • port knocking
  • threat detection
  • cybersecurity

Mentioned in this episode

Organizations: Proofpoint

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