Fake PuTTY Ads Spreading CleanUpLoader Malware

Join cybersecurity experts Dave Farrow, Stef Rand, and Brian Donohue in this 27-minute Office Hours session as they analyze the top 10 threats from June 2025. Explore the rising trend of malicious advertisements and learn about CleanUpLoader, a newly emerging malware from the Atomic Stealer family that maintains persistence on infected systems while delivering additional payloads including Rhysida ransomware. Discover how fake PuTTY advertisements are being weaponized to distribute this sophisticated threat, understand the malware's operational mechanisms across Windows and macOS platforms, and gain insights into current infostealer tactics. The discussion provides practical threat intelligence for security professionals dealing with modern malware campaigns targeting both enterprise and individual users through deceptive advertising techniques.