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Intel 471 Blog

TeamPCP Supply Chain Attacks Turning Geopolitical Tension into Actionable Intelligence CVE-2025-68613: Zerobot botnet exploits critical vulnerability impacting n8n AI orchestration platform Introducing Cyber Threat Exposure Bundle: A Unified Approach to External Risk CVE-2026-20127: Critical Cisco SD-WAN vulnerability exploited in wild Handala Threat Group OpenClaw: A viral AI assistant and a magnet for infostealer malware and ClickFix trickery Israeli, US strikes against Iran triggers a surge in hacktivist activity CVE-2026-1731: Finding a critical RCE in an age of AI-driven vulnerability research Born to bypass MFA: Taking down Tycoon 2FA The UK Cyber Security Resilience Bill How AI and the human advantage beat tomorrow’s threats Winter Olympics 2026: Hacktivism Surges Ahead of Protests and Suspected Sabotage How Threat Hunting and “Good” Metrics Help The Business Likely fake ransomware operator 0APT causes panic — Our analysis Hunting APTs: from state policy to TTPs CrazyHunter Ransomware DevMan Ransomware Introducing HUNTER Tuning: a New Tool for Driving Behavioral Threat Hunt Detections Battling check fraud in the U.S. Gootloader Malware Update Shai-Hulud Worm 2.0 New FvncBot Android banking trojan targets Poland White Paper Preview: Black "Fraud Day” and Beyond — The Key Cyber Threats Facing the Retail Sector this Holiday Season Threat hunting case study: Detecting IAB activity Using deception to extract cyber threat intelligence Lynx Ransomware Qilin Ransomware Group ClickFix: Tricking users into installing infostealers Cybercrime Takedowns: Trust, Partnerships and Focus How card fraud is powered by underground card checkers Tracking down The Com Turning Chaos into Clarity: The Next Phase of Intel 471’s Geopolitical Intelligence Solution The FBI’s Group 78: Covertly fighting ransomware? How threat actors bypass multifactor authentication Crimson Collective In a digital age, US paper check fraud flourishes How you can defend against AI-driven fraud and phishing Detecting cybercriminal activity on Telegram NPM - Shai-Hulud Worm Threat hunting case study: ToolShell AMOS Stealer How AI can (and can’t) help in threat hunting The Phrack leak: Examining an APT’s workstation How initial access offers power intrusions and ransomware Drawing value from cyber threat intelligence “Pig-Butchering” Scams: The Dark Side of Social Engineering and Why Terminology Matters After disruption, XSS cybercrime forum faces loss of trust Update: Salt Typhoon Bridging the CTI Gap: New Exposure Modules on Verity471 Deliver Market-Disrupting Views of Threats Introducing Verity471: Cyber Threat Intelligence Ready to Operationalize FileFix Social Engineering Technique Guided Threat Hunts Takes Your Behavioral Threat Hunting to the Next Level Defending against doxing CVE-2025-53770 - Microsoft Sharepoint Mass Exploitation (ToolShell) Threat hunting case study: Lumma infostealer Pro-Russian hacktivism: Shifting alliances, new groups and risks mommy Access Broker NATO summit commences in tandem with tense cyber, kinetic conflict A look at ‘Tinker,’ Black Basta’s phishing fixer, negotiator Threat hunting case study: DragonForce Two critical challenges facing CTI teams and how to overcome them: Intel 471’s additional insights into the SANS 2025 CTI Survey Android malware trends: Stealthier, easier-to-use Fingerprinting threat actors by their anonymity techniques DanaBot malware disrupted, threat actors named Intel 471 brings HUNTER behavioral threat hunts to Google Security Operations SANS 2025 CTI Survey: It’s Business Time for Cyber Risk How an alleged Russian hacker slipped away Threat hunting case study: Medusa ransomware CVE-2025-31324 - SAP NetWeaver Vulnerability DragonForce Ransomware Managing a cyber crisis LabHost: A defunct but potent phishing service Understanding and threat hunting for RMM software misuse Threat-hunting case study: Windows Management Instrumentation abuse VanHelsing Ransomware An in-depth look at Black Basta's TTPs Six Key Takeaways From the SANS 2025 Threat Hunting Survey Update: Medusa Ransomware Writing high-quality IDS detection rules Threat hunting case study: RMM software Update: LockBit Ransomware Zservers: Bulletproof hosting for online crime Update: Black Basta Ransomware and Threat Group Black Basta exposed: A look at a cybercrime data leak BadPilot Campaign The evolution of Russian cybercrime Android trojan TgToxic updates its capabilities Threat hunting case study: SocGholish DeepSeek AI poses cybersecurity risks Law enforcement hammered cybercrime in 2024. Is it working? Remote Monitoring and Management (RMM) Abuse How threat actors are using artificial intelligence Threat hunting case study: PsExec How ransomware may trend in 2025 What 2025 May Hold for Cybersecurity Bring Your Own Hunts to HUNTER ‘Tis the Season to Be Alert for Cyber Threats: 5 Unjoyful Holiday Tactics Collecting Useful CTI from Underground Markets Expanding source coverage: adding Signal chats to threat intelligence
Chance Favors the Prepared Mind: Building an Advanced Threat Hunter
Intel 471 · 2020-07-29 · via Intel 471 Blog

Threat Hunting//

Threat hunting case study: ToolShell

In July 2025 threat actors exploited zero-day vulnerabilities in on-premises Microsoft SharePoint servers in an incident known as ToolShell. In this case study, we conduct a threat hunt for ToolShell-related activity.