#Endpointsecurity

Tanium Empowering the world’s largest organizations to manage and protect their mission-critical networks.

The latest update for #Tanium includes "Vercel security incident: What the breach reveals about OAuth trust, supply chain risk, and response speed" and "Understanding #shadowAI in your endpoint environment".

#cybersecurity #EndpointProtection #EndpointSecurity https://opsmtrs.com/3DH5Ks9

Over 1 Billion Users Potentially Impacted by Microsoft Zero Day Exposure   Informally known as BlueHammer, a newly discovered Windows zero-day vulnerability has drawn attention to the cybersecurity community because of its ability to quietly hand over control to attackers. As privilege escalation flaws are not uncommon, this particular vulnerability is noteworthy because of its ability to bridge the gap between restricted access and total system control so efficiently.  A malicious adversary who has already gained access to a device may leverage this flaw to elevate privileges to NT AUTHORITY/SYSTEM, effectively bypassing the core safeguards designed to keep damage at bay. Additionally, an exploit code that was fully functional and disclosed by a security researcher on April 3, which had not been made available for official remediation or defensive guidance, further aggravated the situation.  The lack of a CVE, no patch, and the minimal acknowledgement from Microsoft so far indicate that BlueHammer has created a volatile window of exposure which leaves defenders without clear direction. On the other hand, threat actors face considerably lowered barriers to exploitation.  In addition to the previous analysis, BlueHammer was found to operate as a sophisticated local privilege escalation chain integrated within the Windows Defender signature update process, rather than exploiting traditional memory safety flaws by abusing trusted system components. To trigger a race condition between the time of check and the time of use, a coordinated interaction between the Volume Shadow Copy Service, Cloud Files API, and opportunistic locking mechanisms is orchestrated.  Using file state transition manipulations during signature updates, the exploit can access protected resources without requiring kernel-level vulnerabilities or elevated privileges. After execution, the exploit extracts the Security Account Manager database using a Volume Shadow Copy snapshot, revealing the password hashes of local accounts corresponding to the NTLM protocol.  By utilizing these credentials, an administrator can assume administrative control, which leads to the launch of a shell in SYSTEM context. It is noteworthy that the exploit incorporates a cleaning routine that reverts back to the original password hash after execution, which minimizes the likelihood of immediate detection and complicates forensic analysis. Independent validations have confirmed the threat's credibility. The exploit chain, despite minor reliability issues in the initial proof-of-concept, is functionally sound once corrected, according to Will Dormann, Tharros' principal vulnerability analyst.  Other researchers have demonstrated successful end-to-end compromises in subsequent tests, demonstrating that operational barriers are lowering quickly. This risk profile is heightened by the fact that there is no available patch, which leaves organizations without a direct method of remediation, and by the fact that exploit code has been published to the public, which historically accelerates the adoption of ransomware and advanced persistent threat attacks.  In addition to standard user-level access, slightly outdated Defender signatures are required for the attack to occur, lowering the entry threshold. Further, the exploit is constructed from a series of independent primitives that can be used again after targeted fixes have been introduced, indicating a longer-term impact beyond a single vulnerability cycle. Additionally, the circumstances surrounding the disclosure have attracted public attention.  The exploit was released publicly by a researcher operating under the alias Chaotic Eclipse, who expressed dissatisfaction with Microsoft's handling of the problem. It is evident from the accompanying statements that both frustration and intent were evident, as the researcher declined to provide detailed technical explanations but implied that experienced practitioners would be able to grasp the underlying mechanics quickly.  Although the original codebase contained bugs affecting stability, these limitations have been addressed within the research community already. Due to these developments, what began as a partially functional demonstration has quickly evolved into a reproducible attack path, reinforcing concerns that BlueHammer may be able to go from a proof-of-concept to an active exploitation scenario for real environments.  According to emerging details surrounding the disclosure, Microsoft had already been informed of the BlueHammer vulnerability, however, unresolved concerns in the handling process appeared to have led the researcher to release the exploit publicly without having it assigned a formal CVE. It is clear that although the published proof-of-concept initially encountered minor implementation problems, it has since proven viable for practical use.  During independent validation by Will Dormann, the exploit was confirmed to be reliable across a variety of environments, including Windows Server deployments, where it achieved administrative control even when full SYSTEM privileges were not consistently acquired. Using technical refinements from Cyderes' Howler Cell team, the exploit chain was executed completely after addressing the PoC inconsistencies, emphasizing the rapid decline of operational barriers associated with the exploit. It is designed to manipulate Microsoft Defender to generate a Volume Shadow Copy, and then strategically interrupt that process at a specific execution point so that sensitive registry data can be accessed before cleanup routines are activated. Through this controlled interruption, NTLM password hashes associated with local accounts may be extracted and decrypted, followed by unauthorized alteration of administrative credentials. By using token duplication techniques, the attacker inherits administrative security tokens, elevates them to SYSTEM integrity levels, and utilizes the Windows service creation mechanism to launch a secondary payload as a result of this compromise.  As a result of this, an active user session is initiated by launching a command shell operating under the NT AUTHORITY/SYSTEM authority. As a means of obscuring evidence, the exploit then restores the original password hash, ensuring that user credentials remain unchanged while erasing immediate indicators of compromise.  According to security practitioners, BlueHammer represents a broader class of exploitation in which unintended combinations of legitimate system features are combined with discrete software defects to create an exploit.  Cyderes leadership has noted that the technique weaponizes Windows functionality in such a manner that it evades conventional detection logic, and current Defender signatures appear to identify only the binary originally published. It is possible to bypass these detections by simply modifying the codebase, retaining the underlying methodology in its original form.  Due to the absence of vendor-provided patches, defensive efforts have shifted toward behavioral monitoring, such as abnormal interactions with Volume Shadow Copy mechanisms, irregular Cloud File API activity, and unexpected creations of Windows services originating from low-privileged contexts.  A number of additional indicators indicate potential exploitation attempts, including transient changes to local administrator passwords followed by rapid restoration. There are no confirmed reports of active in-the-wild abuse at this point, however the public availability of the exploit dramatically reduces the timeline for potential weaponization. In the past, ransomware groups and advanced threat actors have demonstrated the capability to operationalize these disclosures within days, often integrating them into more comprehensive intrusion frameworks.  While the requirement for local access to the network at first is a constraint, it does not pose a significant barrier to determined adversaries, who routinely gain access through credential theft, phishing campaigns, or lateral movement within compromised networks. Thus, BlueHammer should be considered a proactive exposure window, not an isolated vulnerability, highlighting the risks inherent in complex system interactions as well as the challenges associated with defending against exploitation paths that do not rely on a single, easily remediable flaw to exploit. In the absence of immediate remediation, a containment strategy and a reduction of exposure are necessary response strategies for BlueHammer. It is recommended that security teams prioritize environments where untrusted or potentially compromised code is already running, since vulnerabilities of this nature are most effective when they have established a solid foothold. It is possible to significantly reduce the available attack surface in the short term by enforcing least-privilege enforcement, eliminating unnecessary local administrative rights, and closely inspecting anomalous privilege escalation patterns.  Detecting subtle indicators of post-compromise activity is also critical, including irregular access to sensitive account data, unexpected privilege transitions, and processes that deviate from baselines, which indicate that a compromise has occurred. Managing risk from a broader perspective requires a clear understanding of emerging vulnerabilities and exposed assets.  As a result of context-driven approaches that correlate newly disclosed vulnerabilities with organizational infrastructure, remediation efforts can be prioritized where they have the greatest impact rather than applying uniform responses across all systems. There is a particular need for this in scenarios where there is no immediate vendor guidance available, requiring defenders to rely on situational awareness and adaptive monitoring strategies.  Finally, BlueHammer illustrates how a vulnerability can quickly shift from controlled disclosure to operational risk if exploit code is available in the public domain before it is properly fixed. Response timelines are compressed by these conditions, and defenders are disadvantaged, even in the absence of widespread exploitation that has been confirmed.  Furthermore, this underscores the persistent reality of Windows security: attackers are often not required to use sophisticated remote exploits to achieve meaningful compromise in Windows. If a limited foothold is combined with a reliable escalation path, it is sufficient to take full control of the system.  However, when that pathway becomes public without mitigations, the risk profile increases dramatically, and affected organisms must maintain a disciplined defensive posture and maintain sustained attention. It emphasizes the importance of resilience when faced with incomplete information and delayed remediation as a result of BlueHammer.  Organizations that prioritize proactive threat hunting, adhere to strict access controls, and continuously verify system behavior against expected norms are better prepared to mitigate emerging threats in such scenarios. For limiting the impact of evolving exploitation techniques, a multilayered defensive strategy incorporating visibility, control, and rapid response is necessary rather than only relying on vendor-driven fixes.

Over 1 Billion Users Potentially Impacted by Microsoft Zero Day Exposure #BlueHammerVulnerability #CyberSecurity #Endpointsecurity

Tanium Empowering the world’s largest organizations to manage and protect their mission-critical networks.

The latest update for #Tanium includes "Understanding shadow #AI in your endpoint environment" and "Why most patch management processes break down before deployment".

#cybersecurity #EndpointProtection #EndpointSecurity https://opsmtrs.com/3DH5Ks9

WatchGuard WatchGuard Technologies is a global leader in network security, endpoint security, secure Wi-Fi, multi-factor authentication, and network intelligence.

The latest update for #WatchGuard includes "#ZeroTrust According to the NSA: From Initial Access to Continuous Control" and "WatchGuard and Halo Partner to Simplify #MSP #SecurityOperations".

#Cybersecurity #NetworkSecurity #EndpointSecurity https://opsmtrs.com/3oI51jF

Vulnerability: When Microsoft Defender Becomes the Primitive - RedSun PoC. This vulnerability shows how Windows Defender file handling can be abused through filesystem races, Cloud Files APIs, and reparse points to redirect privileged writes and escalate from a low-privileged user to SYSTEM.

Original text by Alisa Belousova


Author’s note. #BlueTeam #BlueHammer #CFAPI #EndpointSecurity #ExploitResearch #LocalPrivilegeEscalation #Oplocks #redteam #ReparsePoints #SOCDetection #WindowsDefe
core-jmp.org/2026/04/vulnerability-wh...

Bitdefender vereint E-Mail- und Endpunktsicherheit für Unternehmen und Managed-Service-Provider

@Bitdefender_DE #Cybersecurity #Cybersicherheit #EMailSecurity #EMailSicherheit #EndpointSecurity #Endpunktschutz #GravityzoneExtendedEmailSecurity #ManagedServiceProvider

netzpalaver.de/2026/...

WatchGuard WatchGuard Technologies is a global leader in network security, endpoint security, secure Wi-Fi, multi-factor authentication, and network intelligence.

The latest update for #WatchGuard includes "WatchGuard and Halo Partner to Simplify #MSP #SecurityOperations" and "Why Multi-Factor Authentication (#MFA) Is No Longer Optional".

#Cybersecurity #NetworkSecurity #EndpointSecurity https://opsmtrs.com/3oI51jF

WatchGuard and Halo Announce Partnership to Deliver MSP Automation from Alert to Invoice Integration embeds WatchGuard security operations inside HaloPSA, streamlining ticketing, provisioning, and billing workflows for MSPs.

#WatchGuard announces strategic partnership with Halo to help #MSPs deliver and administer security services with less overhead and faster response.

#Cybersecurity #NetworkSecurity #EndpointSecurity https://opsmtrs.com/4tFlHqc

Top 10 EDR software in 2026: Compare features, pricing, and AI-driven threat detection tools to protect endpoints and stop cyber threats fast.

blog.9cv9.com/top-10-endpo...

#EDR #EndpointSecurity #CyberSecurity2026 #XDR #AIsecurity #ThreatDetection

Tanium Empowering the world’s largest organizations to manage and protect their mission-critical networks.

The latest update for #Tanium includes "Why most #patchmanagement processes break down before deployment" and "Axios npm package compromise: What happened, what matters, and how to respond".

#cybersecurity #EndpointProtection #EndpointSecurity https://opsmtrs.com/3DH5Ks9

WatchGuard WatchGuard Technologies is a global leader in network security, endpoint security, secure Wi-Fi, multi-factor authentication, and network intelligence.

The latest update for #WatchGuard includes "Why Multi-Factor Authentication (#MFA) Is No Longer Optional" and "Discover Your Network's Blind Spots Before It's Too Late".

#Cybersecurity #NetworkSecurity #EndpointSecurity https://opsmtrs.com/3oI51jF

WatchGuard Disrupts Endpoint Pricing to Give MSPs Competitive Edge Enterprise-grade product features, combined with an agile and aggressive licensing model, offer MSPs maximum agility in the competitive Endpoint Detection and Response (EDR) market.

#WatchGuard announces new #EndpointSecurity Portfolio designed to disrupt the traditional Endpoint Detection and Response (#EDR) licensing model.

#Cybersecurity #NetworkSecurity https://opsmtrs.com/4tBPKzh

Download Sample - Market Forecast: Network Firewalls, 2026-2030, Worldwide QKS Group a leading global advisory and research firm that empowers technology innovators and adopters. provides comprehensive data analysis and actionable insights to elevate product strategies, unde...

Global Network Firewalls Market Forecast 2026–2030: Trends & Opportunities
Click Here: qksgroup.com/download-sam...

#NetworkFirewalls #FirewallSecurity #CyberSecurity #NetworkSecurity #NextGenFirewall #ITSecurity #DataSecurity #ThreatProtection #EndpointSecurity #CyberDefense

WatchGuard WatchGuard Technologies is a global leader in network security, endpoint security, secure Wi-Fi, multi-factor authentication, and network intelligence.

The latest update for #WatchGuard includes "Discover Your Network's Blind Spots Before It's Too Late" and "WatchGuard Recognized at the 2026 #Cybersecurity Excellence Awards".

#NetworkSecurity #EndpointSecurity https://opsmtrs.com/3oI51jF

WatchGuard WatchGuard Technologies is a global leader in network security, endpoint security, secure Wi-Fi, multi-factor authentication, and network intelligence.

The latest update for #WatchGuard includes "WatchGuard Recognized at the 2026 #Cybersecurity Excellence Awards" and "The Case for an Independent #MFA Layer in Microsoft Environments".

#NetworkSecurity #EndpointSecurity https://opsmtrs.com/3oI51jF

Secure Boot Certificate Expiration 2026: Are You Actually Covered? Data is nice. Information is better. With Intune, you've got a mountain of cell values that are only instructive with a ton of time and exports. Join Patch My PC February 25 at 9am MST for a webinar about Why Intune Reporting Feels Hard.

Your devices boot. Your dashboard is green. You might still be vulnerable 👀

Secure Boot cert changes fail quietly, not loudly. Can you prove you’re actually covered?

Save your spot for our upcoming session on April 29th 📆
https://bit.ly/4sOKrfX

#MSIntune #EndpointSecurity #CyberSecurity

Tanium Empowering the world’s largest organizations to manage and protect their mission-critical networks.

The latest update for #Tanium includes "Axios npm package compromise: What happened, what matters, and how to respond" and "Claude Code source exposure: What enterprises should do next".

#cybersecurity #EndpointProtection #EndpointSecurity https://opsmtrs.com/3DH5Ks9

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🥩🥩Mr T-Bone tip!🥩🥩[New from Tech Community]
Intune is now even faster and quicker to sync and keep up to date. Catch up on the coolest features landing this March! Fresh updates just for you—don’t miss out! 😎✨

#CloudManagement #EndpointSecurity #MVPBuzz #Security #MicrosoftTechCommunity

WatchGuard WatchGuard Technologies is a global leader in network security, endpoint security, secure Wi-Fi, multi-factor authentication, and network intelligence.

The latest update for #WatchGuard includes "The Case for an Independent #MFA Layer in Microsoft Environments" and "Phishing-Resistant MFA: Why Passkeys Are the Next Step".

#Cybersecurity #NetworkSecurity #EndpointSecurity https://opsmtrs.com/3oI51jF

Novel DeepLoad Malware Campaign: ClickFix and Possible AI-Backed Evasion The DeepLoad malware leverages the ClickFix delivery method and possibly AI-generated evasion to bypass defenses, escalating enterprise cybersecurity risks.

Full Article: www.technadu.com/novel-deeplo...

Do you think organizations are prepared for AI-driven malware campaigns? Share your thoughts below 👇
#CyberSecurity #Malware #ThreatIntelligence #Infosec #EndpointSecurity #AIsecurity

WatchGuard WatchGuard Technologies is a global leader in network security, endpoint security, secure Wi-Fi, multi-factor authentication, and network intelligence.

The latest update for #WatchGuard includes "Phishing-Resistant #MFA: Why Passkeys Are the Next Step" and "30 Years Driving Detection and Response in Hybrid Environments".

#Cybersecurity #NetworkSecurity #EndpointSecurity https://opsmtrs.com/3oI51jF

WatchGuard WatchGuard Technologies is a global leader in network security, endpoint security, secure Wi-Fi, multi-factor authentication, and network intelligence.

The latest update for #WatchGuard includes "30 Years Driving Detection and Response in Hybrid Environments" and "SMB #Cybersecurity Spending Rises: #ZeroTrust & Secure Access Now Essential".

#NetworkSecurity #EndpointSecurity https://opsmtrs.com/3oI51jF

🛡️ Cyber Tip: Use business grade antivirus and keep it updated.

Enterprise level protection with real time monitoring helps detect and stop threats before they spread.

zurl.co/buqUn

#Zevonix #CyberSecurity #EndpointSecurity #DaytonaBeach

Discover the top 5 insights from the Gartner Security & Risk Management Summit on enhancing cybersecurity strategies. #CyberSecurity #CTEM #AI #EndpointSecurity #RiskManagement Link: thedailytechfeed.com/gartner-summ...

Your security stack looks fine from the dashboard and that's the problem - Help Net Security Enterprise endpoint security gaps cost companies $49M yearly in downtime as 1 in 5 devices runs outside enforceable protection.

CISOs report widening endpoint security gaps — visibility, patching, and control are struggling to keep pace with threat speed. Endpoints remain the weakest link. 💻⚠️ #EndpointSecurity #CyberRisk

www.helpnetsecurity.com/2026/03/25/c...

Tanium Accelerates Autonomous IT with AI and Security Innovations New platform capabilities unveiled at RSAC 2026 conference span Security Operations, Exposure Management and Endpoint Management - driven by AI and real-time intelligence.

#Tanium announces at the world's largest and most influential #cybersecurity conference major advancements that accelerate the journey toward autonomous operations and security.

#EndpointProtection #EndpointSecurity https://opsmtrs.com/4sxpshi

WatchGuard WatchGuard Technologies is a global leader in network security, endpoint security, secure Wi-Fi, multi-factor authentication, and network intelligence.

The latest update for #WatchGuard includes "SMB #Cybersecurity Spending Rises: #ZeroTrust & Secure Access Now Essential" and "What #MSP Leaders Are Telling Us: Four Strategic Takeaways for the Channel".

#NetworkSecurity #EndpointSecurity https://opsmtrs.com/3oI51jF

CISA, Microsoft Outline Intune Safeguards After Stryker Cyber Attack -- Redmondmag.com The Cybersecurity and Infrastructure Security Agency is urging U.S. organizations to strengthen security around Microsoft Intune and other endpoint management platforms after a cyberattack on medical technology giant Stryker Corp. disrupted operations and contributed to surgery delays at hospitals nationwide.

After a cyberattack on Stryker disrupted hospital operations, CISA and Microsoft are calling for stronger Intune security, citing abuse of admin access and device wipe capabilities.

See what IT teams should prioritize next: https://ow.ly/Uq1950Yxvri

#Cybersecurity #EndpointSecurity #MSIntune

🛡️ Cyber Tip: Use device management tools to secure endpoints.

Centralized control helps enforce policies, push updates, and respond quickly to threats across all company devices.

zurl.co/jfPfO

#Zevonix #CyberSecurity #EndpointSecurity #ITSecurity

Arctic Wolf Cybersecurity is a field that requires 24x7 vigilance and constant adaptation. Arctic Wolf’s cloud native platform and Concierge Security® Team delivers uniquely effective solutions.

The latest update for #ArcticWolf includes "CVE-2025-32975: Arctic Wolf Observes Exploitation of Quest KACE Systems Management Appliance" and "The Six Key Benefits and Core Capabilities of #EndpointSecurity".

#cybersecurity #infosec #networks https://opsmtrs.com/2ZFbaTl