Security researchers at Proofpoint have warned against a new cybercriminal, temporarily named BattleRoyal, who is using a variety of delivery methods, including emails, Skype, and fake updates, to exploit a vulnerability in Windows SmartScreen. It was discovered that BattleRoyal had found and exploited this vulnerability before Microsoft publicly disclosed it.
GuidePoint warns of Python backdoor used in ransomware
GuidePoint Security identified a threat actor using a Python-based backdoor to persistently access breached endpoints and release RansomHub encryptors across compromised networks. The backdoor was
