Latest cybersecurity reporting from selected sources.

DragonForce hid for months by routing malware traffic through Microsoft Teams infrastructure, masking C2 activity and evading network detection. DragonForce ransomware operators hit a major U.S. services firm and stayed hidden for one to two months by routing their command-and-control traffic through Microsoft’s own Teams relay servers. Symantec’s threat hunters tracked the custom backdoor they […]

Also: VPN Vulnerabilities Attract Hackers, Hackers Use Swiss Mail to Send MalwareThis week, Russia suspected in Balctic Sea cable sabotage, VPNs draw ransomware attackers and Swiss snail mail malware. An AI training company reported a cybertheft of $250,000 and a U.S. space firm reported a breach. Microsoft said it will pay $$$ for AI vulnerabilities and a MFA success story.

Microsoft: Ransomware-as-a-Service Group Keeps Shifting Malware to Avoid DetectionThreat actors tracked as "Vanilla Tempest" - and also known as Vice Society - appear to be changing up the ransomware they use to attack on U.S. healthcare organizations. Likely in a move to avoid detection, the ransomware-as-a-service group has shifted to INC Ransom malware, according to Microsoft.

A coordinated law enforcement effort codenamed Operation Duck Hunt has felled QakBot, a notorious Windows malware family that's estimated to have compromised over 700,000 computers globally and facilitated financial fraud as well as ransomware

The U.S. government today announced a coordinated crackdown against QakBot, a complex malware family used by multiple cybercrime groups to lay the groundwork for ransomware infections. The international law enforcement operation involved seizing control over the botnet's online infrastructure, and quietly removing the Qakbot malware from tens of thousands of infected Microsoft Windows computer systems.

Microsoft said it teamed up with Fortra and Health Information Sharing and Analysis Center (Health-ISAC) to tackle the abuse of Cobalt Strike by cybercriminals to distribute malware, including ransomware