Tryhackme on Matt Swann — Detection Engineering & Threat Intelhttp://mattswann.dev/tags/tryhackme/Recent content in Tryhackme on Matt Swann — Detection Engineering & Threat IntelMatt Swann — Detection Engineering & Threat Intelhttp://mattswann.dev/og-image.pnghttp://mattswann.dev/og-image.pngHugoen-usSun, 21 Dec 2025 23:39:55 -0700Advent of Cyber 2025 Day 21 — Malware Analysis Bonus Challengehttp://mattswann.dev/posts/advent-of-cyber-2025-day21-bonus/Sun, 21 Dec 2025 23:39:55 -0700http://mattswann.dev/posts/advent-of-cyber-2025-day21-bonus/A walkthrough of the TryHackMe Advent of Cyber 2025 Day 21 bonus challenge: peeling back a multi-layer HTA payload through VBScript analysis, Base64 decoding, and XOR decryption to uncover a hidden PNG.