Purple Teaming for Blue Teams

What Purple Teaming for Blue Teams teaches: stop assuming your detections fire and prove it. Emulate each attacker technique, watch whether detection catches it, fix the gaps, and measure real coverage across Sentinel, Splunk, and Elastic, walking 61 ATT&CK techniques end to end. The validation loop you'll run, the proven coverage you walk away with, and how the course is structured. Start here.

Build a four-environment, three-SIEM purple-team lab from scratch. Windows endpoint with Sysmon, Active Directory domain controller, Linux with auditd, M365 developer tenant, Sentinel, Defender XDR Advanced Hunting, and your choice of Splunk Free or Elastic. Fire the first technique and confirm telemetry lands in all three SIEMs.

Walk six initial access techniques end-to-end: spearphishing links and attachments, stolen cloud credentials, exploited public-facing applications, compromised remote services, and abused trust relationships. Fire each attack against your lab. Watch the telemetry. Write the rules that catch them.

Walk ten execution techniques end-to-end across Windows, Linux, Active Directory, and Microsoft 365. PowerShell, cmd, Bash, VBA macros, Python, JavaScript, WMI, scheduled tasks, user execution, and COM object abuse. Fire each technique in your lab, observe the telemetry, write the Sigma rules that catch them, and tune for production.

Walk twelve persistence techniques end-to-end across Windows, Linux, Active Directory, and Microsoft 365. Registry run keys, scheduled tasks, WMI subscriptions, SSH keys, service creation, device registration, cloud credentials, DLL hijacking, and more. Fire each technique, observe it survive a reboot, write the rules that catch the implant before it fires again.

Walk twelve privilege escalation techniques end-to-end across Windows, Linux, Active Directory, and Microsoft 365. UAC bypass, sudo abuse, token impersonation, SUID exploitation, process injection, cloud role assignment, SID-History injection, and more. Fire each technique, observe the elevation, write the rules that catch the privilege boundary crossing.

Walk ten defense evasion techniques that exist to defeat the detection rules you built in Modules 2–5. Disable security tools, clear event logs, obfuscate commands, abuse trusted binaries, patch telemetry at the source, masquerade processes, hide artifacts, delete evidence, modify firewalls, and pass hashes. For each technique, discover which of your existing rules break, understand why they break, and rebuild detection that survives the evasion.

Walk twelve credential access techniques that harvest passwords, hashes, tokens, and session cookies from Windows, Active Directory, Microsoft 365, and Linux. For each technique, understand what credential material the attacker obtains, why that material gives them access beyond the current endpoint, and how to detect the harvesting before the credentials are used.

Walk five discovery techniques that enumerate accounts, systems, groups, cloud services, and files across Windows, Active Directory, Microsoft 365, and Linux. For each technique, understand what question the attacker is answering, why the answer enables lateral movement, and how to detect the enumeration before the attacker acts on it.

Walk twelve lateral movement techniques that move attackers across Windows, Active Directory, Microsoft 365, and Linux using legitimate protocols. For each technique, understand why the attacker chose this movement method, what telemetry distinguishes it from legitimate administration, and how to detect the lateral step before the attacker reaches their target.

Walk twelve collection techniques that gather email, files, credentials, screen content, and cloud data across Windows, Microsoft 365, and Linux. For each technique, understand what the attacker is targeting, how they stage it for exfiltration, and how to detect the harvesting before the data leaves your network.

Detect and analyze twelve C2 communication techniques across HTTP/S, DNS, tunneling, proxy, encoding, and protocol impersonation channels. Build detection at the network layer using beacon analysis, certificate fingerprinting, protocol compliance, and entropy measurement.

Validate detection coverage across twelve exfiltration techniques, from C2-channel piggyback and cloud storage abuse to DNS tunneling, webhook endpoints, USB media, and automated pipelines. Build volume-based, destination-based, and behavioral detection across network, cloud, and endpoint layers.

Detect and contain twelve impact techniques, from ransomware encryption and wiper attacks to recovery inhibition, account lockout, data manipulation, and resource hijacking. Build detection that catches irreversible damage in progress and races to limit blast radius.

Execute the complete CHAIN-HARVEST AiTM attack chain across all four environments and three SIEMs. Assess detection coverage, identify gaps, build the remediation plan, and produce a portfolio-grade purple-team report.

The lookup layer: every emulation command and validation query the course teaches, grouped by the question you are asking at the moment you open the page.

Procedures: what you do, in what order, what each step must produce, and where it branches. The exercise lifecycle from authorization through to the reported coverage figure.

The build-and-verify reference for the emulation lab: what the environment has to produce, the settings that are off by default and decide every later result, the activity generation that gives you something to detect, and the verification that fails loudly.

Exercises worked end to end, including the wrong turns: the technique run, the rule that did or did not fire, the diagnosis, the rule change, and the re-test that settled it.

Emulation procedures opened at the moment you are about to run a technique family: prerequisites, pre-flight, time budget, the execution sequence, the validation, and the tiered disposition of the result.

Where to practice purple teaming beyond the course: the detection library, the Splunk Lab, the SOC Simulator and the open-source emulation frameworks, with an honest note on which of them is written for this course and which is not.

The emulation commands, detection rules and telemetry indicators from every module in one place, indexed by ATT&CK tactic. The working kit you carry into your next exercise.

Where to check whether anything in this course has changed: the ATT&CK releases the technique set tracks, the emulation framework documentation, the Sigma rule sources, and the detection community work cited throughout the course.

You've reached the end of Purple Teaming for Blue Teams. This closing module looks back at what you built across the course, how it changed the way you read a coverage figure, and where to take the work next.