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Daniel Zimmermann

Daniel Zimmermann

Daniel Zimmermann writes as a guest for Trojan Killer Net. With over 10 years in the security field, he’s a pro who loves diving into cybersecurity and fighting malware. His knack for writing helps him break down complex topics to keep readers in the know and safe.

Weaponized PDFs: How a Single Document Took Down 4chan

Recently, 4chan went dark unexpectedly. Not from a DDoS attack or a hosting provider issue, but from a single PDF file. As a security researcher who’s dealt with many breaches, this attack stood out. The cause? An outdated Ghostscript interpreter…

Fake DeXe Protocol Website: How to spot scams

During my weekly monitoring of emerging crypto threats, I discovered a sophisticated scam targeting DEXE Protocol users through a deceptive clone website. Unlike typical phishing attempts, this fake DEXE Protocol site (claim.dexenetwork.click) is meticulously designed to mirror the legitimate platform…

Hudson Ransomware: Analysis and Removal Guide

I’ve been tracking Hudson ransomware since it first appeared on VirusTotal last week. This nasty piece of work appends the “.{victim’s_ID}.hudson” extension to your files, effectively holding them hostage until you pay up. In my analysis, I’ve uncovered how this…

Malware Removal Guide

Malware Removal Guide: All Threat Types

I’ve spent over a decade cleaning up infected systems, and let me tell you – malware has come a long way from the clumsy viruses of the early 2000s. Today’s threats are sophisticated nightmares that can dodge detection, encrypt your…

DocuSign – Signature Requested: Phishing Email Scams

I investigated three separate cases where employees at a financial firm clicked on fake “DocuSign – Signature Requested” emails, resulting in compromised corporate accounts and data breaches. These increasingly common phishing campaigns impersonate DocuSign’s legitimate electronic signature service, creating urgent…