Microsoft Teams phishing targets employees with A0Backdoor malware
Summary
Hackers are targeting employees at financial and healthcare organizations using Microsoft Teams to deploy a new malware called A0Backdoor. The attackers trick victims into granting remote access via Quick Assist, which then facilitates the malware's deployment.
IFF Assessment
This is bad news for defenders as it highlights a new method for attackers to leverage a common business communication platform and a legitimate remote access tool for malicious purposes.
Defender Context
Defenders need to be aware of this evolving phishing tactic that bypasses traditional email filtering by utilizing platforms like Microsoft Teams. Security awareness training should be updated to include these types of social engineering attacks, and organizations should monitor for unauthorized use of remote access tools.