Recon & Mass Exploitation Research
Threat research on reconnaissance and mass exploitation activity from ELLIO. Read the latest threat news and defense analysis.
Page 2 of 3
React2Shell Update: Custom Go L7 DDoS Botnet
A single delivery IP has been exploiting React2Shell to distribute malware from an open directory. 31 binaries including a custom Go L7 DDoS botnet with Cloudflare token forgery, two Mirai variants across 13 CPU architectures, and a C2 server.
Analyze everything or move straight to network-level blocking?
One IP. Four days. Nearly 900 user agents. Over 3,000 probes. Sometimes a single IP address tells you everything you need to know about how industrialized internet scanning has become.
_Z2vxzLx.webp)
Coordinated Credential-Stuffing Campaign Targets Palo Alto GlobalProtect Portals
A coordinated credential-stuffing campaign hit GlobalProtect VPN portals with 8,575 IPs in 48 hours. Three attack waves, 78 targeted usernames, one password. Our team breaks down the timeline, infrastructure, fingerprints, and what defenders can do.
"n8n" is the new "admin."
On February 10, 2026, our deception network recorded "n8n" overtaking "admin" as the #2 most brute-forced SSH username. The campaign scaled from a handful of probing IPs to hundreds of unique sources in under a week, with attackers rapidly iterating through password variants.
New Historical IP Timeline is live
ELLIO Threat Intelligence Platform expands its capabilities with an interactive Historical IP Timeline, giving teams deep visibility into historical IP activity with flexible filtering and report-ready exports.
React2Shell in the Wild: Payload Analysis, Active Campaigns, and IoCs
The ELLIO sensor network has been tracking active exploitation of CVE-2025-55182 (React2Shell) in the wild. Here’s what we’re seeing.
From Scan to Exploit: Inside the Latest Cisco ASA/FTD Campaign
From reconnaissance to exploitation in just 48 hours. See how 75 IPs executed surgical, one-hit attacks on Cisco ASA/FTD devices - and how to disappear from target lists.
Every packet tells a story: The evolution of fingerprinting and netsec
The journey began in 1969, when the very first RFC - Request for Comments - was published. Explore key milestones that shaped network security and the practice of network fingerprinting.
Video: How to capture real value from network fingerprinting in practice
Learn practical tips for deploying JA4, JA3, and MuonFP fingerprints in your security operations. Get expert insights from Vlad Iliushin and discover how to unlock their full defensive value.