How a live GreyNoise product demo turned into an incident response. Inside a proxyjacking campaign that hit 143 devices ...
Coordinated Brute Force Activity Targeting Apache Tomcat Manager Indicates Possible Upcoming Threats
Roughly 400 unique IPs were involved in the activity observed across both tags during this period of elevated activity. Most of the activity originating from these IPs exhibited a narrow focus on ...
GreyNoise measured 212 exploitation attempts per second across H2 2025 — and the patterns inside that volume expose specific, measurable gaps in common edge defense strategies. The 2026 GreyNoise ...
GreyNoise’s new research reveals a recurring pattern: spikes in malicious activity often precede the disclosure of new CVEs — especially in enterprise edge technologies like VPNs and firewalls. In 80 ...
Mass exploitation is faster and broader than ever. 40% of exploited CVEs in 2024 were at least four years old — some dating back to the 1990s. Attackers are targeting zero-days within hours of ...
GreyNoise has identified a notable surge in scanning activity targeting MOVEit Transfer systems, beginning on May 27, 2025. Prior to this date, scanning was minimal — typically fewer than 10 IPs ...
In a significant escalation, the botnet has grown to ~300,000 IPs — more than tripling in size. The threat actor(s) continues its focus on RDP infrastructure in the United States, leveraging IPs from ...
GreyNoise has observed active exploitation of CVE-2023-20198, with 110 malicious IPs actively targeting vulnerable Cisco devices, primarily from Bulgaria, Brazil, and Singapore. Two malicious IPs ...
The internet changes before the advisory drops. GreyNoise found that activity surges in sensor data precede vulnerability disclosures by a median of 11 days — a pattern that held across 33 CVEs and 16 ...
Cisco Talos recently uncovered a sophisticated attack campaign targeting Japanese organizations through CVE-2024-4577, a critical PHP-CGI remote code execution flaw with 79 exploits available. While ...
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When chained together, these vulnerabilities enable unauthenticated remote code execution on Ivanti Endpoint Manager Mobile (EPMM) systems. In April, GreyNoise warned about a 9X surge in scanning ...
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