Microsoft Teams Users Impacted by New SynkLoader Phishing Campaign

A new phishing campaign is targeting Microsoft Teams users by impersonating IT support staff. The attackers aim to trick victims into downloading malicious files, which can lead to credential theft and further network compromise.

The SynkLoader malware operates through a multi-stage process, starting with convincing Microsoft Teams messages that mimic IT support communications. These messages lure recipients into downloading and executing malicious files, which then present a fake Windows lock screen prompting users for their credentials.

Organizations using Teams, especially those with external communication enabled, are at risk of credential theft, unauthorized access, lateral movement, secondary malware deployment, and sensitive data exposure.