Detection Engineering
Ransomware Early-Warning Detection
How to detect ransomware before mass encryption — shadow-copy deletion, mass file changes, and precursor signals, with a Sigma rule and recovery-focused hardening.
#sigma
18 articles
Detection Engineering
Detecting Lateral Movement
How to detect lateral movement — PsExec, WMI, and RDP signals in Windows telemetry, Sigma rules, and the segmentation and tiering that shrink the attacker's reach.
Detection Engineering
Detecting DCSync Attacks
How to detect DCSync — the Event 4662 replication signal, the GUIDs to watch, a Sigma rule, and the least-privilege hardening that removes the abused rights.
Detection Engineering
Detecting Process Injection
How to detect process injection — CreateRemoteThread, RWX memory, and process hollowing signals in Sysmon, a Sigma rule, and the tuning that keeps it high-fidelity.
Detection Engineering
Detecting BYOVD Attacks
How to detect BYOVD (bring-your-own-vulnerable-driver) attacks — the driver-load and service-creation signals, a Sigma rule, the LOLDrivers list, and HVCI hardening.
Detection Engineering
Detecting Living-off-the-Land Binaries
How to detect LOLBins without false positives — flag abuse of certutil, regsvr32, mshta and rundll32 by behavior, with a Sigma rule and allowlist tuning.
Detection Engineering
Sysmon Configuration for Threat Detection
A practical Sysmon configuration for threat detection — the event IDs that matter, a tuned config approach, what to send to your SIEM, and the rules it powers.
Detection Engineering
Detecting NTLM Relay Attacks
How to detect and defend against NTLM relay — coercion primitives, the CVE-2025-24054 case, ADCS ESC8 audit events, and the SMB/LDAP signing plus EPA that stop it.
Detection Engineering
Detecting LSASS Credential Dumping
How to detect LSASS credential dumping — the Sysmon process-access signal, suspicious GrantedAccess masks, a Sigma rule, and the LSA protections that prevent it.
Detection Engineering
Sigma Rule Lifecycle: Hypothesis to Production
The Sigma rule lifecycle from hypothesis to production — status stages (experimental to stable), CI testing, tuning, versioning, and when to deprecate a rule.
Detection Engineering
Detection Engineering Workflow
A detection engineering workflow that ships — hypothesis to ATT&CK-mapped, data-validated, tested, version-controlled detections, gated by CI and measured.
Hardware Security
USB Rubber Ducky Detection Patterns
USB Rubber Ducky detection patterns for blue teams — spotting HID injection with Sigma, USB device control and AppLocker hardening, and MITRE ATT&CK mapping.
Detection Engineering
File Upload Security: A Blue Team Checklist
File upload security for blue teams — detect web-shell uploads with FIM and process telemetry, Sigma and YARA rules, plus a hardening checklist.
Detection Engineering
Command Injection Logs: What to Watch
Command injection detection from logs — the telemetry that exposes OS command injection, Sigma and Suricata rules, a CVE-2024-3400 case study, and hardening.
Detection Engineering
JWT Misconfiguration: Detection and Defense
JWT misconfiguration detection and defense — alg:none, RS256-to-HS256 confusion, and kid injection, with header-logging detection, Sigma rules, and MITRE mapping.
Detection Engineering
SQL Injection Detection: A Defensive Guide
How to detect SQL injection across web, app, and database telemetry — with Sigma, Suricata, and SPL rules, a CVE-2025-1094 case study, and tuning tips. Lab-only.
Detection Engineering
Writing Sigma Rules That Actually Fire (Not Just Compile)
A detection engineer's guide to Sigma rules that survive production — pinned logsources, behavioral logic, field-mapping pipelines, tuned false positives, and CI.
Defensive Research
Anatomy of a Kerberoasting Attack — and How to Detect It
How Kerberoasting abuses service tickets to crack service-account passwords offline — and the Sigma detection and hardening that shut it down. Lab-only.