--- title: Warlock Ransomware Exploits SharePoint to Steal Credentials description: Warlock ransomware targets unpatched SharePoint servers, steals credentials, and encrypts data. Learn how AppGuard prevents these attacks. image: https://prevent-ransomware.com/hubfs/red%20lock.jpeg --- [![CHIPS Cyber Defense Solutions, LLC](https://prevent-ransomware.com/hubfs/chips_blue_logo_higher_res-20210817212617.png) Cyber Defense Solutions, LLC](https://prevent-ransomware.com) ☰ [About](https://prevent-ransomware.com/about) [Solutions](https://prevent-ransomware.com/solutions) [Industries](https://prevent-ransomware.com/industries) [Resources](https://prevent-ransomware.com/resources) [Partner With Us](https://prevent-ransomware.com/meetings/tony-chiappetta/30-minute-initial-meeting) [About](https://prevent-ransomware.com/about) [Solutions](https://prevent-ransomware.com/solutions) [Industries](https://prevent-ransomware.com/industries) [Resources](https://prevent-ransomware.com/resources) [Partner With Us](https://prevent-ransomware.com/meetings/tony-chiappetta/30-minute-initial-meeting) # Warlock Ransomware Exploits SharePoint to Steal Credentials ![Tony Chiappetta](https://prevent-ransomware.com/hubfs/Tony%20LinkedIn.jpg) by [Tony Chiappetta](https://prevent-ransomware.com/blog/author/tony-chiappetta) September 24, 2025 Organizations around the world are facing a new and dangerous ransomware threat: Warlock. According to a recent article on Cybersecurity News, Warlock is exploiting unpatched Microsoft SharePoint servers to infiltrate networks, steal credentials, and encrypt critical data. This emerging ransomware strain demonstrates how attackers are increasingly using sophisticated methods to bypass traditional defenses. [Source: Cybersecurity News](https://cybersecuritynews.com/warlock-ransomware-exploiting-sharepoint-vulnerabilities/) Warlock attacks begin by targeting publicly exposed SharePoint instances. Threat actors craft malicious HTTP POST requests that deploy web shells, allowing them to execute code remotely within the compromised environment. Once inside, the attackers escalate privileges, harvest credentials, and move laterally using a combination of built-in Windows utilities and custom malware tools. The ransomware payload ultimately encrypts files and appends the “.x2anylock” extension, while simultaneously exfiltrating sensitive data using legitimate tools such as RClone, rebranded as TrendSecurity.exe. By using burner credentials and cloud storage, the attackers obscure the destination of stolen information, making detection even more difficult. One of Warlock’s most concerning capabilities is its ability to disable endpoint protection. By deploying a malicious driver, Warlock terminates security processes, including those of well-known antivirus programs, effectively rendering traditional “detect and respond” solutions ineffective. This illustrates a critical weakness in relying solely on reactive security measures. The ransomware’s persistence mechanisms further complicate remediation. Attackers create backdoor accounts, manipulate Group Policy Objects, and ensure that malicious payloads survive system reboots. These tactics allow Warlock to maintain a foothold within networks, even after initial cleanup efforts. This attack highlights the urgent need for businesses to move beyond traditional cybersecurity strategies. Relying solely on detection and response is no longer sufficient. Instead, organizations should adopt an approach focused on **Isolation and Containment**. This method prevents ransomware and other malware from executing and spreading, effectively stopping attacks before they can cause damage. **AppGuard**, a proven endpoint protection solution with a 10-year track record of success, offers this proactive defense. Unlike conventional antivirus tools, AppGuard isolates unknown or potentially malicious files from the rest of the system, preventing execution and lateral movement. By containing threats at their source, AppGuard ensures that even sophisticated attacks like Warlock cannot steal credentials or encrypt critical data. Business owners need to take proactive steps to protect their networks from emerging ransomware threats.[Talk with us at CHIPS](https://prevent-ransomware.com/getting-started) about how AppGuard can safeguard your organization and help you move from reactive “Detect and Respond” strategies to proactive **Isolation and Containment**. Preventing an incident before it occurs is not just smarter—it’s essential in today’s threat landscape. Like this article? Please share it with others! 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