malware analysis. Tagged Articles.
9 articles tagged malware analysis.
Ransomware Donex Ransomware Technical Analysis Donex ransomware technical analysis: how the Windows malware encrypts local and network files, clears logs, maps to MITRE ATT&CK, and how to defend. 
Ransomware KageNoHitobito Ransomware Technical Analysis KageNoHitobito ransomware encrypts local files with a .hitobito extension and uses TOR. See its behaviour, MITRE ATT&CK mapping and how to defend. 
Ransomware [Research Summary]: Rugmi Loader Rugmi loader technical analysis: phishing delivery, DLL hijacking, direct syscalls, Heaven's Gate evasion, process injection, a stealer payload and defenses 
Ransomware Stone Gaze: In-Depth Analysis of Medusa Ransomware Medusa ransomware is a RaaS group active since 2021. See how it gets in, encrypts files and pressures victims, plus the steps that reduce the risk. 
APT Groups [Research Summary]: RokRat RokRAT technical analysis: how a .lnk file disguised as a PDF runs PowerShell and drops the RokRAT trojan, with MITRE ATT&CK mapping and defences. 
Ransomware Xehook Stealer Technical Analysis The xehook stealer is a .NET data-stealing malware sold on a cybercrime forum. See how it works, the MITRE ATT&CK techniques it uses and how to… 
Ransomware Xeno RAT Technical Analysis Xeno RAT analysis: an open-source remote access tool with a client builder, reverse proxy, process, file and registry management, and file hashes. 
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. 
Blog DNS Under Siege: Analysis of Threat Actor-Driven Abuse Learn how DNS works and how threat actors abuse it through DNS tunneling and fast-flux networks, plus why DNS monitoring and threat intelligence matter. 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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New articles are added several times a month. The newest come first, and every article shows its publish date.
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Use the topic chips above the list to open one topic, or type a word in the search box. Each topic has its own page.
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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 site feed at brandefense.io/feed/ lists new posts. The email sign-up box is on the All Resources and Reports pages.
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Brandefense is an AI-driven threat intelligence company. Its platform covers cyber threat intelligence, digital risk protection and external attack surface management. You can request a demo on your own domain from the Request A Demo page.
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The blog page shows 470 articles. You can open all of them or pick one topic, such as APT Groups, Dark Web, Ransomware or Fraud. Each article shows its publish date.
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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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The surface web is the part of the internet that search engines list. The deep web is content that search engines do not list, such as pages behind a login. The dark web needs special software to reach. The blog has an article that explains the three layers in plain words.