Related Threat Clusters
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GRU Compromises Home Routers in 23 States to Steal Outlook Credentials
The FBI and partners disrupted a covert network of compromised TP-Link and MikroTik routers exploited by the Russian GRU (APT28) to steal Outlook credentials. This operation, known as Operation Masquerade, revealed that…
6 articles · Updated May 22, 2026 -
Widespread DNS Poisoning Campaign Targets Hotel Wi-Fi to Steal Credentials
A DNS poisoning campaign has compromised hotel and conference center Wi-Fi gateways to steal Microsoft 365 login credentials from corporate travelers. The campaign has been active since at least June 2026, affecting…
73 articles · Updated July 24, 2026 -
Detection Techniques for Outlook NotDoor Backdoor Malware Revealed
Researchers from the Splunk Threat Research Team have uncovered detection techniques for the NotDoor backdoor malware, which exploits Microsoft Outlook. This malware strain poses risks to users of the Outlook…
3 articles · Updated November 17, 2025 -
Detection Techniques for Outlook NotDoor Backdoor Malware Revealed
The Splunk Threat Research Team has identified a new malware strain named NotDoor, which exploits Microsoft Outlook. This backdoor malware poses risks to users by potentially allowing unauthorized access to their…
3 articles · Updated November 17, 2025
Recent Intelligence Reports
- FrostArmada — www.lumen.com · August 3, 2026
- Researchers Detailed Techniques to Detect Outlook NotDoor Backdoor Malware — Cybersecuritynews · November 17, 2025
- Detection Techniques for Outlook NotDoor Backdoor Malware Uncovered by Researchers — Cyberpress · November 17, 2025
- New Detection Methods Uncovered for Outlook NotDoor Backdoor Malware — Gbhackers · November 17, 2025