JB@jimmybarrios:~$ cat ./profile.txt
Jimmy Barrios
what i do
Focus Areas
01 — Detection Engineering
SIEM Detections & MITRE ATT&CK Mapping
Building detections mapped to MITRE ATT&CK. SentinelOne EDR tuning and adversary emulation with Horizon3.ai.
02 — Cloud Security
AWS Security Labs & Education
Hands-on AWS security lab series. Terraform for deployment, CLI for hardening. Published content on YouTube and GitHub.
03 — Penetration Testing
Attack & Defend
Building hands-on skills in Active Directory attack paths, attack simulation, and offensive security concepts to better understand detection, defense, and real-world attacker behavior.
writing
Latest Posts
Exfiltrating cardholder data from S3 by abusing IMDSv1 and a misconfigured EC2 reverse proxy — CloudGoat scenario walkthrough....
Exposing an API Gateway key through a publicly subscribable SNS topic and pivoting to enumerate a protected endpoint...
Starting from a low-priv IAM user, this CloudGoat scenario shows how leaked Beanstalk environment credentials can chain into...
Sherlock challenge notes on Operation Dream Job, mapping Lazarus tradecraft with MITRE ATT&CK and IOC enrichment using VirusTotal....