STAC4749: Chaos Ransomware in Under 17 Hours via Teams IT Support Scam
1. Basic Information
Article Name: Chaos in Teams vishing
Publisher: Sophos
Publication Date: 2026-07-28 (Detailed report by target site BleepingComputer on 2026-07-30)
STAC4749: Chaos Ransomware in Under 17 Hours via Teams IT Support Scam 1. Basic...
STAC4749: Chaos Ransomware in Under 17 Hours via Teams IT Support Scam
1. Basic Information
Article Name: Chaos in Teams vishing
Publisher: Sophos
Publication Date: 2026-07-28 (Detailed report by target site BleepingComputer on 2026-07-30)

Threat actors are impersonating IT support staff in Microsoft Teams calls to gain remote access to corporate devices and deploy…

Threat actors are abusing Microsoft Teams voice calls by impersonating corporate IT support staff to trick employees into…

Unit 42 says attackers are posing as helpdesk staff and persuading employees to hand over remote control before dropping EtherRAT…

Operation BlueDash uses fake Teams and Zoom updates to install Level RMM, ScreenConnect, and Tactical RMM in an apparent bid for…

Custom malware routed communications through legitimate Microsoft services, making malicious activity look like routine corporate…

DragonForce ransomware used a custom malware named 'Backdoor.Turn' to hide command-and-control traffic inside Microsoft Teams…