Tag: threat research
Millions of emails distributing LockBit ransomware
Affiliates of the infamous ransomware group LockBit have launched a potentially devastating new weaponized email tactic designed to cause maximum disruption to millions of companies in the US and around the world. At the end of April this year, researchers at cybersecurity firm Proofpoint began to observe high-volume ransomware campaigns sending out millions of fraudulent emails over a one-week period, facilitated by the Phorpiex botnet. In all cases, email messages purported to come from “Jenny Green” with the email address Jenny@gsd[.]com. These contained an attached ZIP file capable of downloading the LockBit Black ransomware payload from Phorpiex botnet infrastructure.
‘Brute force’ cyber-attacks continue to escalate
Cybersecurity firm Okta reports a spike in ‘brute-force’ credential-stuffing attacks over the last month. This follows earlier reports of a spike in ‘brute force’ credential-stuffing attacks reported last week. Increasingly sophisticated ‘brute force’ attacks use trial and error techniques to crack passwords, login credentials, and encryption keys. New life is now also being breathed into what is essentially an old hacking technique, with widely available software using artificial intelligence (AI) that can carry out large numbers of attempts automatically.