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Winsage
October 14, 2024
The Iranian threat actor known as OilRig is exploiting a patched privilege escalation vulnerability (CVE-2024-30088) in the Windows Kernel as part of a cyber espionage campaign targeting the United Arab Emirates and the Gulf region. OilRig, also referred to as Earth Simnavaz and by other aliases, employs advanced tactics including a backdoor that exploits Microsoft Exchange servers for credential theft. Their recent operations involve a previously undocumented implant for exfiltrating credentials and the use of a web shell for initial access to vulnerable web servers. They utilize the ngrok remote management tool for persistence and movement within networks. The exploitation of the privilege escalation vulnerability allows the delivery of a backdoor called STEALHOOK, which transmits harvested data via the Exchange server. OilRig has also employed a password filter policy DLL (psgfilter.dll) to extract sensitive credentials. This group has a history of targeting critical infrastructure in geopolitically sensitive areas to maintain a persistent presence for further attacks.
Winsage
September 28, 2024
Microsoft's Recall feature for Copilot+ AI PCs was designed to help users locate past activities but faced backlash over security concerns related to constant screenshotting of user activity. In response, Microsoft delayed the rollout for Windows Insider beta testers and announced enhanced security measures, making Recall an opt-in feature by default and integrating Windows Hello biometric authentication. The feature will utilize encryption and VBS Enclaves to protect data, and users can opt to remove Recall entirely. Additional protective measures include rate-limiting and anti-hammering strategies, with a fallback PIN method after configuration. Recall will not retain private browsing data by default and will filter sensitive content. Microsoft has engaged a third-party vendor for penetration testing and security design review, while the Microsoft Offensive Research and Security Engineering team has been testing the feature.
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