--- title: "Kelvin W (@SagittariusAStar) | Hashnode" description: "CTI - Security Research - Astrophysics Enthusiast. Read the latest articles by Kelvin W on Hashnode." url: "https://hashnode.com/@SagittariusAStar" --- @SagittariusAStar # Kelvin W @SagittariusAStar · Joined August 2023 CTI - Security Research - Astrophysics Enthusiast ### [Going Out With a Bang — Virtual SCADA Hacking with GRFICSv2: Part 2](https://sagittarius.hashnode.dev/going-out-with-a-bang-virtual-scada-hacking-with-grficsv2-part-2?utm_source=hashnode&utm_medium=feed) This time, I’ll show you how to exploit common industrial control network cybersecurity pitfalls to explode a virtual chemical plant simulator. 5 min read · [sagittarius.hashnode.dev](https://sagittarius.hashnode.dev/going-out-with-a-bang-virtual-scada-hacking-with-grficsv2-part-2?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/going-out-with-a-bang-virtual-scada-hacking-with-grficsv2-part-2/64ea53cab0bc8eded882fa17) [Aug 26, 2023](https://hashnode.com/posts/going-out-with-a-bang-virtual-scada-hacking-with-grficsv2-part-2/64ea53cab0bc8eded882fa17) ### [Let’s Call It a Day — Virtual SCADA Hacking with GRFICSv2: Part 1](https://sagittarius.hashnode.dev/lets-call-it-a-day-virtual-scada-hacking-with-grficsv2-part-1?utm_source=hashnode&utm_medium=feed) Disclaimer: I am in no way affiliated with Fortiphyd Logic. Today, I’m going to show you how to exploit built-in industrial control system (ICS) functionality to shut down a virtual chemical plant simulator. Introduction I’d like to start by creditin... 7 min read · [sagittarius.hashnode.dev](https://sagittarius.hashnode.dev/lets-call-it-a-day-virtual-scada-hacking-with-grficsv2-part-1?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/lets-call-it-a-day-virtual-scada-hacking-with-grficsv2-part-1/64ea5269b8fd8c72ef173f72) [Aug 26, 2023](https://hashnode.com/posts/lets-call-it-a-day-virtual-scada-hacking-with-grficsv2-part-1/64ea5269b8fd8c72ef173f72) ### [TCM’s Practical Junior Penetration Tester (PJPT) Review](https://sagittarius.hashnode.dev/tcms-practical-junior-penetration-tester-pjpt-review?utm_source=hashnode&utm_medium=feed) Introduction This week, I passed my first penetration testing certification, the Practical Junior Penetration Tester (PJPT), which is provided by TCM Security. I’ve created this post to help get more of a spotlight on their newest certification (as o... 7 min read · [sagittarius.hashnode.dev](https://sagittarius.hashnode.dev/tcms-practical-junior-penetration-tester-pjpt-review?utm_source=hashnode&utm_medium=feed) [Aug 26, 2023](https://hashnode.com/posts/tcms-practical-junior-penetration-tester-pjpt-review/64ea4e6bb8fd8c72ef173f64) ### [Network Pivoting for Newbies with Ligolo-ng](https://sagittarius.hashnode.dev/network-pivoting-for-newbies-with-ligolo-ng?utm_source=hashnode&utm_medium=feed) Learn how to move laterally through a network and bypass DMZs... 7 min read · [sagittarius.hashnode.dev](https://sagittarius.hashnode.dev/network-pivoting-for-newbies-with-ligolo-ng?utm_source=hashnode&utm_medium=feed) [Aug 25, 2023](https://hashnode.com/posts/network-pivoting-for-newbies-with-ligolo-ng/64e804b910f5fd3e91d1acad)