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Hey Adversary, I’ve Got a Human EDR Bypass for You

Daniel Isler

Where

Adversary Village
DEF CON 34

Duration

24 min

Shows how red teams read security awareness metrics, OSINT and employee habits to gain initial access without advanced code, and how defenders can respond.

Summary

The talk opens with a warning about compliance dashboards. A low phishing click rate can convince leadership that staff are secure, but the speaker argues that repetitive, template-based training teaches people a fixed set of warning signs. An attacker who learns those signs can build lures that leave them out, treating the trained human reaction as a predictable control to work around.

The middle section covers reconnaissance and pretexting. In a grey-box engagement, a client can share its awareness vendor, campaign cadence and test difficulty, and public professional posts can hint at which product and version a company runs. People also carry habits from earlier jobs, so a pretext that mirrors a former employer's ticketing or HR messages may succeed during the onboarding window. The speaker describes isolating a target outside the office in a restricted area, where staff feel protected, using a cheap drone drop. A short bonus segment covers physically taking a laptop whose BitLocker setup lacks a pre-boot PIN, with a claim that bus sniffing could expose the key.

The closing argument is that awareness programs should act as behavioral sensors rather than multiple-choice exams. Practical measures include interrupt protocols that break an attacker's live pace and a no-fault reporting culture meant to shorten dwell time.

Materials

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