Category: How-To
-
The 1.7 MB CAPTCHA — How a Fake Human Verification Check Delivered Two RATs
A fake CAPTCHA — 1.7 MB of React 19 served from a .top domain — tricks a visitor into pressing Win+Rand pasting PowerShell. No browser sandbox escape needed. No exploit. Just social…
-
Hunting Lazy OPSEC: Spotting Default C2 Certificates with DuckDB and Zeek
Threat actors love to reuse tools, and sometimes, they get lazy. Case in point: AsyncRAT and its notorious fork, DcRAT. These remote access trojans often ship with default, self-signed certificates. If the…
-
Beyond the Grep: Hunting Malware with Zeek and DuckDB SQL
Hunting through raw Zeek logs just got a massive upgrade. If you’ve spent years in the SOC, you’ve likely built up a library of complex awk chains and grep commands to parse…
-
How I Used Gemini To Fix My Terrible Zeek Documentation
I built a Zeek-based Amadey malware detector… and then absolutely did NOT document it. https://github.com/keithjjones/zeek-amadey-detector So instead of fixing my own mess, I made Gemini do it. In this video: If your…
-
Fix NoMachine’s CAPS LOCK Reversal Bug
I was recently trying to connect to a remote NoMachine host, and the sense of caps lock was reversed compared to my local machine. This happens if your caps was on when…
-
Manually Download MacOS Sequoia
Apple’s macOS updates are typically seamless through the App Store, but sometimes, a bug can throw a wrench in the process. I recently encountered this firsthand when updating one of my Macs…
-
A Gozi Banking Malware Detector – Zeek Roulette #3
I had talked about Gozi malware in our eCrimeBytes podcast here: Last Man From Gozi Banking Malware Group Sentenced To Three Years – eCrimeBytes Nibble #51 In my technical real life job…
-
Detecting Amadey Malware With Zeek – Zeek Roulette #2
For my Zeek Roulette #2 I picked a recently submitted sample off of ANY.Run that ended up being Amadey: https://app.any.run/tasks/31ba58da-30d1-4a08-940d-2412fc629221/ You can download the PCAP from the link above if you navigate…
-
How To Make Your Voice Sound Sexy Using A USB Microphone On A MacBook
This method will let you make your voice sound sexy through any application like Zoom, Microsoft Teams, StreamYard, etc. After installing OBS, you will need to install the donationware Virtual Audio Cable…
-
Detecting njRAT/Bladabindi Malware With Zeek – Zeek Roulette #1
Welcome to the first edition of Zeek Roulette, where I pick a random Zeek topic and try to solve it! For this article I picked njRAT malware from Any.Run and tried to…