GreyNoise

@greynoise.io

4109 Followers 24 Following

GreyNoise analyzes Internet background noise. Use GreyNoise to remove pointless security alerts, find compromised devices, or identify emerging threats.

Dark-themed GreyNoise Intelligence summary slide titled ‘The Scanning Landscape Is Reorganizing’ for March 9–16, 2026, showing total scanning stats and brief blurbs on uCloud’s 578% surge, escalating edge device exploits, fast‑rotating RDP operators, and a renewed React2Shell campaign, with a call to action to get the full report.
A GreyNoise Intelligence Weekly Intelligence Brief cover page titled “Weekly Intelligence Brief” with the subhead “The Scanning Landscape Collapsed. Enterprise Campaigns Intensified.” The design features large bold statistics across the center, including “268M sessions observed,” “435% Sophos surge,” “9.1M RDP sessions,” and “Week 6 VPN siege.” Supporting text summarizes key findings about collapsing global scanning volume, intensified Sophos firewall exploitation, massive RDP scanning from two IPs, and ongoing VPN credential campaigns targeting enterprise perimeter infrastructure. The footer includes a call to action to contact GreyNoise for the full brief, the GreyNoise logo, and the company website and social handle on a clean, professional white background with branded typography.
A GreyNoise Intelligence weekly brief cover page titled “Weekly Intelligence Brief” for February 9–16, 2026, using a clean corporate layout with the GreyNoise logo at the top. Large headline text reads “IoT, Edge, Credentials. All Surging at Once.” followed by a short summary paragraph describing rising IoT botnet recruitment, Fortinet VPN brute-forcing, and credential harvesting. Four bold numeric callouts highlight “91% IoT default password surge,” “98% increase Fortinet VPN brute-force,” “8.28M credential harvesting sessions,” and “84 days of crypto C2 beaconing.” Below, four brief section teasers describe IoT botnet activity, enterprise edge credential attacks, broad credential harvesting, and an 84-day crypto exchange C2 operation. The footer includes a “Want the full brief?” marketing call-to-action with the GreyNoise contact URL and social handle, plus a “TLP: CLEAR” label indicating public sharing is allowed.
A dark-themed “Weekly Intelligence Brief” report from GreyNoise covering February 2–9, 2026, summarizing global malicious scanning activity. Large headline text highlights a 113% week‑over‑week surge in Remote Desktop Protocol (RDP) attacks, with 29.9 million RDP attempts, 83,000 N8N exploits, and 352 callback domains associated with OAST. Below, the layout is divided into four sections: one explaining that RDP attacks more than doubled in a week driven by a single noisy IP; one titled “Ivanti ‘Three‑Headed Hydra’” describing three independent campaigns abusing CVE‑2022‑1281 with Cobalt Strike; one on N8N exploitation describing 83,334 attempts against CVE‑2022‑21858 from a specific IP range and warning about exposed API keys; and one on the Rondodx botnet summarizing high session counts and links to previous activity. A footer invites readers to contact GreyNoise for the full brief and includes a link to the company website.
A digital intelligence brief from GreyNoise titled “AT THE EDGE,” dated January 19–23, 2026, summarizing three coordinated cyber campaigns under the headline “Three Campaigns. One Fingerprint.” The top of the graphic highlights key statistics in large text: 1.7M React attacks, 506K VPN targets, 1.8M router attempts, and a note that 3 IPs are responsible for 99% of observed activity. Below, four text blocks describe: (1) React exploitation attempts related to CVE-2025-55182, including real command injection, a Metasploit module, and one hosting provider generating 57% of traffic; (2) sustained attacks on enterprise VPNs (Fortinet SSL VPN and Palo Alto GlobalProtect) with 506K sessions, a 25% increase over baseline for Fortinet, and emphasis that VPN credentials are valuable for ransomware; (3) router attacks where three IPs drive 1.8M attempts, focusing on a MikroTik RouterOS brute-force campaign with a 64,000:1 session-to-IP ratio and noting compromised routers as pivot points and botnet nodes; and (4) an explanation that a shared JA1T network fingerprint links the React RCE, VPN brute force, and environment crawling to common infrastructure, suggesting organized operations rather than random scanning. The bottom banner invites GreyNoise customers to access the full brief, mentioning complete IOCs, attribution, detection guidance, and weekly role-based recommendations, with a contact URL “greynoise.io/contact” and a small 2026 GreyNoise, Inc. copyright notice.
Black GreyNoise hiring graphic with bold text reading ‘We Are Hiring!’ followed by a list of open roles: Director of Strategic Alliances; Regional Sales Manager – US DoD + IC; Sales Engineer – US DoD + IC; Regional Sales Manager – US Federal Civilian; Sales Development Representative – EMEA; and Customer Experience Specialist – EMEA. The design features teal wave lines and the GreyNoise logo, with a call to action to apply at greynoise.io/careers.
Graphic summarizing five React2Shell attacker profiles: Mass Scanners, VPN/Proxy Users, Cryptomining Operators, Malware Distribution Infrastructure, and Reconnaissance Specialists. Each group shows distinct characteristics, JA4+ signatures, and assessments ranging from benign scanning to organized cybercrime activity. GreyNoise notes customers receive full signatures in their intelligence brief.
We are hiring Senior Software Engineer Head of US Federal Sales RSM - US DoD + IC RSM - US Enterprise Sales Engineer - US DoD + IC Apply now at greynoise.io/careers
GreyNoise CMO, Ruoting Sun, holding two awards in front of the Cyber Defense Magazine photo wall.