Carter Yagemann

I'm a computer scientist and cybersecurity researcher. My interests include hacking, system design, and software engineering.

Linux Articles

  • Tue 21 March 2017
  • Linux

Intel Processor Trace, execvp, and ptrace

Lately, I've been playing around with Intel Processor Trace (PT); a x86 hardware feature that allows for complete tracing of process control flows. As part of my research, I've been developing my own Linux driver and user program to control PT. Tracing can be configured using a handful of model …

  • Mon 30 January 2017
  • Linux

Getting the CR3 value for a PID in Linux

Writing low level code can be difficult due to the lack of examples on the internet. The answer is generally sitting somewhere in a 3,000 page manual where only the most dedicated programmers will find it. Last week I had such an experience. Currently my research involves a lot …

  • Tue 20 October 2015
  • Linux

The importance of boot partitions in Linux systems.

Over the weekend, the lab I work in experienced a power outage. After power was restored, one of our servers failed to boot. It ultimately became my responsibility to figure out if the server could be repaired and failure wasn't an option because the server was configured (with no backups …

  • Fri 13 February 2015
  • Linux

Installing psad on Raspberry Pi Running Arch Linux

I've been fooling around with IDS and specifically psad and I thought it would be fun to try installing psad on my raspberry pi. Little did I know, installing psad on an ARM processor running Arch Linux with systemd is not a simple process. It took me great effort to …