The name was coined by Dinh Ho Anh, a researcher from Khoa of Viettel Cyber Security, who developed the exploit. The ...

ESET Research has been monitoring intense attacks involving the recently discovered ToolShell zero-day vulnerabilities.

More information has emerged on the ToolShell SharePoint zero-day attacks, including impact, victims, and threat actors.

If exploited, attackers can gain full access to SharePoint content and potentially pivot to Outlook, Teams, and OneDrive.

The ToolShell bugs are being exploited by cybercriminals and APT groups alike, with the US on the receiving end of 13 percent ...

Microsoft has released security patches for the zero-day vulnerability chain dubbed ToolShell, capable of remote code ...

Some administrators who logged in last week found their on-premises Microsoft SharePoint servers silently uploading web ...

More details emerged on the ToolShell zero-day attacks targeting SharePoint servers, but confusion remains over the ...

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

An ongoing cyberattack campaign known as “ToolShell” is exploiting on-premises Microsoft SharePoint Servers and has ...

Major cyberattacks in 2025 so far have included the Microsoft SharePoint Server “ToolShell” attacks, the ransomware attack ...

On July 20, 2025, Microsoft and the Cybersecurity and Infrastructure Security Agency (CISA) issued urgent warnings about new, actively ...