Malware Monday: a blog about malware and other cybersecurity threats
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Rhysida RaaS Group Emerged as One of Top Ransomware Threats in 2025
Day 35 of 100 in the 100 Days of Cyber Challenge One of the top emerging threats in Ransomware as a Service (RaaS) is the Rhysida group. According to a joint bulletin from CISA and the FBI, the group has been operating since May 2023 and seeks targets in healthcare, government, education, manufacturing, and IT.
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Antigravity Drive Deletion May Not be Malware…
Day 28 of 100 in the 100 Days of Cyber Challenge …but it’s the next best thing. I debated whether today’s Malware Monday topic would be about the recent Antigravity D: drive mass file deletion incident because it does not rise to the level of malicious, but is so damaging that it might as well
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Links to Days 1-5 of the 100 Days of Cyber Challenge
The following are links to the first 5 days of the 100 Days of Cyber Challenge that I posted on LinkedIn. Day 1 of 100, 18 November 2025BSides Pyongyang 2025, Starting over with the Challenge, DPRK Cyberattacks and Tactics Day 2 of 100, 19 November 2025FCC Proposing Rollback of Salt-Typhoon-Inspired Rules Day 3 of 100,
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BRICKSTORM Backdoor Wreaking Havoc on VMWare Systems
Day 21 of 100 in the 100 Days of Cyber Challenge Agencies from the U.S. (NSA, CISA) and the Canadian Centre for Cyber Security (CCCS) have released a malware analysis report providing indicators of compromise and detection signatures of the BRICKSTORM backdoor malware. The government and IT sectors are believed to be the main targets
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DPRK Using Etherhiding in Persistent Attacks
Day 14 of 100 in the 100 Days of Cyber Challenge Welcome to the first article on the Malware Monday blog. One of this site’s goals is to publish informative content about malware each Monday (or close to each Monday as time allows). Since I am ‘making this up as I go along’ there will