In this Threat Analysis report, Cybereason investigates the Ransomware-as-a-Service (RaaS) known as Beast and how to defend against it through the Cybereason Defense Platform.

Cybereason GSOC observed distribution of the Bumblebee Loader and post-exploitation activities including privilege escalation, reconnaissance and credential theft. Bumblebee operators use the Cobalt Strike framework throughout the attack and abuse credentials for privilege escalation to access Active Directory, as well as abusing a domain administrator account to move laterally, create local user accounts and exfiltrate data...

Raspberry Robin involves a worm that spreads over USB devices or shared folders, leveraging compromised QNAP (Network Attached Storage or NAS) devices as stagers and an old but still effective method of using “LNK” shortcut files to lure its victims...

Cybereason recently an attack assessed to be the work of Chinese APT Winnti that operated undetected, siphoning intellectual property and sensitive data - the two companion reports examine the tactics and techniques of the overall campaign as well as more detailed analysis of the malware arsenal and exploits used...