Threat actors misuse Node.js to deliver malware and other malicious payloads
Since October 2024, Microsoft Defender Experts has observed and helped multiple customers address campaigns leveraging Node.
Research
Explore in-depth research on the latest cybersecurity threats, trends, and defense strategies. Get insights from Microsoft that’ll help you better understand and respond to today’s challenges.
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Stopping attacks against on-premises Exchange Server and SharePoint Server with AMSI
Exchange Server and SharePoint Server are business-critical assets and considered crown-jewels for many organizations, making them attractive targets for attacks. -
Exploitation of CLFS zero-day leads to ransomware activity
Microsoft Threat Intelligence Center (MSTIC) and Microsoft Security Response Center (MSRC) have discovered post-compromise exploitation of a newly discovered zero-day vulnerability in the Windows Common Log File System (CLFS) against a small number of targets. -
Threat actors leverage tax season to deploy tax-themed phishing campaigns
As Tax Day approaches in the United States on April 15, Microsoft has detected several tax-themed phishing campaigns employing various tactics. Go beyond data protection with Microsoft Purview
Govern, protect, and manage all of your data with Microsoft Purview, comprehensive solutions to help give you better visibility and control.
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Analyzing open-source bootloaders: Finding vulnerabilities faster with AI
Using Microsoft Security Copilot to expedite the discovery process, Microsoft has uncovered several vulnerabilities in multiple open-source bootloaders impacting all operating systems relying on Unified Extensible Firmware Interface (UEFI) Secure Boot. -
StilachiRAT analysis: From system reconnaissance to cryptocurrency theft
Microsoft Incident Response uncovered a novel remote access trojan (RAT) named StilachiRAT, which demonstrates sophisticated techniques to evade detection, persist in the target environment, and exfiltrate sensitive data. -
Phishing campaign impersonates Booking.com, delivers a suite of credential-stealing malware
Microsoft Threat Intelligence identified a phishing campaign that impersonates online travel agency Booking. -
New XCSSET malware adds new obfuscation, persistence techniques to infect Xcode projects
Microsoft Threat Intelligence has uncovered a new variant of XCSSET, a sophisticated modular macOS malware that infects Xcode projects, in the wild. Streamline privacy management with Microsoft Priva
Protect and govern personal information, reduce privacy risks, and manage subject rights requests at scale with Microsoft Priva privacy risk management solutions.
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Malvertising campaign leads to info stealers hosted on GitHub
Microsoft detected a large-scale malvertising campaign in early December 2024 that impacted nearly one million devices globally. -
Silk Typhoon targeting IT supply chain
Silk Typhoon is a Chinese state actor focused on espionage campaigns targeting a wide range of industries in the US and throughout the world. -
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. -
The BadPilot campaign: Seashell Blizzard subgroup conducts multiyear global access operation
Microsoft is publishing for the first time our research into a subgroup within the Russian state actor Seashell Blizzard and its multiyear initial access operation, tracked by Microsoft Threat Intelligence as the “BadPilot campaign”.
