Microsoft linked attacks on SharePoint flaws to China-nexus actors

Microsoft linked SharePoint exploits to China-nexus groups Linen Typhoon, Violet Typhoon, and Storm-2603, active since July 7, 2025. Microsoft confirmed that China-linked groups Linen Typhoon, Violet Typhoon, and Storm-2603 exploited SharePoint flaws for initial access as early as July 7, 2025. “As of this writing, Microsoft has observed two named Chinese nation-state actors, Linen Typhoon […]

ToolShell under siege: Check Point analyzes Chinese APT Storm-2603

securityaffairs.co - 01/Aug 11:17

Storm-2603 group exploits SharePoint flaws and uses a custom C2 framework, AK47 C2, with HTTP- and DNS-based variants named AK47HTTP and AK47DNS....

Storm-2603 Exploiting SharePoint Flaws

thecyberthrone.in - 24/Jul 13:41

Overview Storm-2603 is a China-based advanced threat actor actively exploiting a series of critical vulnerabilities in on-premises Microsoft...

Risk highlighted as Chinese hackers hit Microsoft

techxplore.com - 25/Jul 08:30

Software giant Microsoft is at the center of cybersecurity storm after China-linked hackers exploited flaws in SharePoint servers to target hundreds...

Risk highlighted as Chinese hackers hit Microsoft

techxplore.com - 25/Jul 08:30

Software giant Microsoft is at the center of cybersecurity storm after China-linked hackers exploited flaws in SharePoint servers to target hundreds...

Microsoft: SharePoint flaws exploited in Warlock ransomware attacks

bleepingcomputer.com - 24/Jul 09:53

A China-based hacking group is deploying Warlock ransomware on Microsoft SharePoint servers vulnerable to widespread attacks targeting the recently...

Microsoft: SharePoint flaws exploited in Warlock ransomware attacks

bleepingcomputer.com - 24/Jul 09:53

A China-based hacking group is deploying Warlock ransomware on Microsoft SharePoint servers vulnerable to widespread attacks targeting the recently...

U.S. CISA urges FCEB agencies to fix two Microsoft SharePoint flaws immediately and added them to its Known Exploited Vulnerabilities catalog

securityaffairs.co - 23/Jul 21:59

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds two Microsoft SharePoint flaws to its Known Exploited Vulnerabilities catalog. The...

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Microsoft linked attacks on SharePoint flaws to China-nexus actors

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