Sreehari P J
Security Researcher & Systems Student
Offensive security enthusiast pivoting to low-level systems engineering. Currently exploring Linux Kernel internals and eBPF to build better defensive tooling.
Currently
Selected Projects
Go · eBPF · C
eBPF-based process anomaly detector. Attaches fentry probes to vfs_write, scores entropy, and SIGKILLs high-entropy writers.
Python · DNS
CLI tool to audit subdomain DNS records for dangling pointers and takeover risks across large domains.
Astro · TypeScript
This site. Astro, minimal, academic research-log aesthetic.
Writing
Building a high-performance ransomware detector by tracing kernel file operations with eBPF and dropping processes before encryption happens.
A story of idle curiosity, a CloudFront XML page, and an unauthenticated S3 bucket exposing 150GB of user data from knot.dating.
Subdomain enumeration, a forgotten sports fest, and a dangling DNS that somehow survived years