Detection engineering and security research: Sigma rules, Atomic Red Team tests, Sentinel hunting queries + the pySigma tooling around them.
Highlights below. Full list of merged PRs: vl43den.github.io/contributions
SigmaHQ/sigma
- Suspicious Kerberos Ticket Request (ScriptBlock + CLI): removed
.GetRequest()requirement (#6296) - UFW Disable Attempt: fixed broken
ufw-initdetection and broadened UFW disable coverage (#5978) - fix: Suspicious Kerberos Ticket Request (Scriptblock + CLI) - remove .GetRequest() requirement (#6296)
pySigma and backends
- SigmaHQ/pySigma: stopped re-parsing
SigmaStringentries in values (#433) - logpoint/pySigma-backend-logpoint: added a Linux/auditd pipeline (#33) and upgraded to pySigma v1.0.0 (#28)
- SigmaHQ/pySigma-backend-elasticsearch: fixed
SigmaNullconversion in the ECS Windows pipeline (#174)
redcanaryco/atomic-red-team
- T1546.005: added Trap DEBUG atomic test (#3338)
- T1027/T1027.013: added character array and password-protected ZIP obfuscation tests (#3279)
- T1496 (Resource Hijacking): added Windows CPU load simulation (#3275)
Azure/Azure-Sentinel
- KqlValidations schema: added Sentinel IdentityInfo columns (#15418)
- hunt_LOLBins.yaml: repaired entity mappings (#15144)
NVIDIA/NemoClaw



