Description

Security researchers have identified that threat actors are attempting to compromise Microsoft Teams accounts to access chats and spread malicious executables to participants in the conversation. During the attack, which was spotted in January 2022, attackers inserted a malicious Trojan document called “User Centric” in the Teams chat. Once a user downloads the attached file, the malware writes data into the system registry, installs DLLs and allows to establish persistence on the affected system. It is able to collect information of the operating system and the hardware, as well as, the security state of the machine and the patches installed. As per researchers, the initial infection vector to compromise Microsoft Teams accounts remains unclear but believes that attackers might have gained access to Microsoft Teams accounts by stealing users' credentials through phishing emails. According to reports, lack of default security protection in teams can cause an attack, and yet, many email security solutions have not provided robust protection for Microsoft teams.