Since mid-2024, cybercriminals have leveraged a subscription-based phishing platform known as RaccoonO365 to harvest Microsoft 365 credentials at scale. Emerging as an off-the-shelf service, RaccoonO365 requires minimal technical skill, allowing threat actors to deploy convincing phishing campaigns by impersonating official Microsoft communications. These kits replicate Microsoft branding, email templates, and login portals to trick recipients […] The post Microsoft Dismantles 300+ Websites Used to Distribute RaccoonO365 Phishing Service appeared first on Cyber Security News.

The digital advertising ecosystem has become a prime hunting ground for cybercriminals, who are increasingly exploiting advertising technology companies to distribute malware and conduct malicious campaigns. Rather than simply abusing legitimate platforms, threat actors are now operating as the platforms themselves, creating a sophisticated web of deception that leverages the inherent complexity and fragmentation of […] The post Threat Actors Abuse Adtech Companies to Target Users With Malicious Ads appeared first on Cyber Security News.

The PureHVNC remote administration tool (RAT) has emerged as a sophisticated component of the Pure malware family, gaining prominence in mid-2025 amid an uptick in targeted intrusion campaigns. Originating from underground forums and Telegram channels, PureHVNC is marketed by its author, known as PureCoder, alongside companion tools such as PureCrypter, PureLogs, and PureMiner. Its adoption […] The post PureHVNC RAT Developers Leverage GitHub Host Source Code appeared first on Cyber Security News.

In recent weeks, cybersecurity researchers have observed the emergence of XillenStealer, a Python-based information stealer publicly hosted on GitHub and rapidly adopted by threat actors. First reported in mid-September 2025, the stealer leverages a user-friendly builder GUI to lower the bar for malicious deployment. Operators can configure exfiltration channels, such as a Telegram bot, and […] The post Python Based XillenStealer Attacking Windows Users to Steal Sensitive Data appeared first on Cyber Security News.