The Wayback Machine - https://web.archive.org/web/20250214113402/https://www.microsoft.com/en-us/security/blog/
Skip to main content
Microsoft Security

Microsoft Security Blog

A group of people looking at a computer screen

Storm-2372 conducts device code phishing campaign 

Microsoft Threat Intelligence Center discovered an active and successful device code phishing campaign by a threat actor we track as Storm-2372. Our ongoing investigation indicates that this campaign has been active since August 2024 with the actor creating lures that resemble messaging app experiences including WhatsApp, Signal, and Microsoft Teams. Storm-2372’s targets during this time have included government, non-governmental organizations (NGOs), information technology (IT) services and technology, defense, telecommunications, health, higher education, and energy/oil and gas in Europe, North America, Africa, and the Middle East. Microsoft assesses with medium confidence that Storm-2372 aligns with Russian interests, victimology, and tradecraft.

Photo of a developer coding her workspace in an enterprise office, using Visual Studio on a multi-monitor set up.

Code injection attacks using publicly disclosed ASP.NET machine keys 

Microsoft Threat Intelligence observed limited activity by an unattributed threat actor using a publicly available, static ASP.NET machine key to inject malicious code and deliver the Godzilla post-exploitation framework. In the course of investigating, remediating, and building protections against this activity, we observed an insecure practice whereby developers have incorporated various publicly disclosed ASP.NET machine keys from publicly accessible resources, such as code documentation and repositories, which threat actors have used to launch ViewState code injection attacks and perform malicious actions on target servers.

Retain Microsoft Security Experts

Microsoft Security Experts are now available to strengthen your team with managed security services. Learn how to defend against threats with security experts.

A woman using a tablet

New Star Blizzard spear-phishing campaign targets WhatsApp accounts 

In mid-November 2024, Microsoft Threat Intelligence observed the Russian threat actor we track as Star Blizzard sending their typical targets spear-phishing messages, this time offering the supposed opportunity to join a WhatsApp group. This is the first time we have identified a shift in Star Blizzard’s longstanding tactics, techniques, and procedures (TTPs) to leverage a […]

Building with windows and pillars on top of decorative background
Published
7 min read

Innovating in line with the European Union’s AI Act  

As our Microsoft AI Tour reached Brussels, Paris, and Berlin recently, we met with European organizations that were energized by the possibilities of our latest AI technologies and engaged in deployment projects. They were also alert to the fact that 2025 is the year that key obligations under the European Union’s AI Act come into effect, opening a new chapter in digital regulation as the world’s first, comprehensive AI law becomes a reality.

Woman with glasses at a laptop in an office

Analyzing CVE-2024-44243, a macOS System Integrity Protection bypass through kernel extensions 

Microsoft discovered a macOS vulnerability allowing attackers to bypass System Integrity Protection (SIP) by loading third party kernel extensions, which could lead to serious consequences, such as allowing attackers to install rootkits, create persistent malware, bypass Transparency, Consent, and Control (TCC), and expand the attack surface to perform other unauthorized operations.