Ransomware. From Our Analysts.
Ransomware research: active groups, leak-site activity, attack methods and trends, plus practical steps to reduce your exposure and prepare your response.
Ransomware Phemedrone Stealer Technical Analysis Technical analysis of Phemedrone stealer malware: how it spreads, what data it steals, how it sends data out through Telegram, and how to reduce the risk. 
Ransomware Cactus Ransomware Technical Analysis The Cactus ransomware, initially observed in 2023, is a sophisticated malware variant that poses a significant threat to computer systems and their users. 
Ransomware Invicta Stealer Technical Analysis Invicta Stealer is a malicious software designed to steal sensitive user information, with a focus on targeting Discord, wallets, and web browsers. 
Ransomware Gotham Stealer Technical Analysis Gotham Stealer, a malware first seen in September 2023, targets browser data, crypto wallets and gaming accounts such as Discord, Steam and Roblox. 
Ransomware PrivateLoader as a RiseProStealer Dropper Technical Analysis PrivateLoader is a pay-per-install dropper that delivers RiseProStealer. See how the infection chain works, the file fingerprints and how to defend. 
Ransomware The Rise of Ransomware-as-a-Service (RaaS): Understanding the Threat RaaS lets developers rent out ransomware while affiliates run the attacks and share the profits. Learn how the model works and how to reduce the risk. 
Ransomware [Research Summary]: Cylance Ransomware Cylance ransomware technical analysis: how this Linux ELF ransomware may enter through unpatched services, misconfigurations and stolen credentials. 
Ransomware [Research Summary]: Mystic Stealer Mystic Stealer is a stealer malware that first surfaced in April 2023. See what it steals, how it is sold as a service, and its MITRE… 
Ransomware [Research Summary]: Snatch Ransomware Snatch ransomware reboots into Safe Mode to bypass default safeguards, then encrypts files. See how it works, its sample hashes and MITRE ATT&CK mapping. 
Ransomware Echida Stealer Technical Analysis Echida Stealer is a C# malware that steals data and takes remote commands. This Threat Intelligence post covers its capabilities, C2 and MITRE ATT&CK map. 
Ransomware [Research Summary]: Stop/Djvu Ransomware Stop/Djvu ransomware analysis: how it encrypts files, marks them with varied extensions, drops _readme.txt ransom notes, and a report you can download. 
Ransomware Comparing Cyber Security Attacks in Q3 – Q4 of 2022 for the Manufacturing Sector Compare ransomware attacks on the manufacturing sector in Q3 and Q4 of 2022, see why factories are targeted, and learn practical steps to reduce risk. About The Blog.
Last updated June 9, 2026-
Articles on ransomware, APT groups, the dark web, digital risk protection, fraud, sector analysis and VIP security, written for security teams.
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Articles draw on public sources such as CISA advisories, MITRE ATT&CK and ENISA reports. Sources are listed at the end of an article when it cites them.
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The blog describes its articles as explained by the analysts who track threats. They cover threat actors, dark web activity, ransomware and digital risk. The newest articles appear first.
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Yes. APT Groups is one of the topic chips above the list, and it opens only the articles on that topic. The Knowledge Hub also holds profiles of threat groups.
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