Your Free Threat Intelligence Feed Just Got Better
- Patrick Duggan
- Jan 25
- 2 min read
What You Get (For Free)
Data Type | Count | Source | Use Case |
Malicious IPs | 2,494+ | SSL honeypot, AbuseIPDB | Firewall blocklists |
Botnet C2s | Updated hourly | Feodo Tracker | C2 detection |
Phishing URLs | Updated hourly | OpenPhish, URLhaus | Email security |
Tor Exit Nodes | 500+ | Tor Project | Anonymization detection |
Hijacked Networks | 1,464 CIDRs | Spamhaus DROP | BGP/routing security |
TLS Fingerprints | 97 JA3 hashes | SSLBL | Behavioral detection |
APT Indicators | 346 actors | OTX, MITRE | Attribution |
Exploited CVEs | 1,494 | CISA KEV | Patch prioritization |
Total indexed: 270,442 indicators
The Receipts
Real numbers from our production feed:
Last 7 days: 858 new indicators
Hourly updates: 8 threat intel sources
STIX version: 2.1 (OASIS standard)
License: CC0-1.0 (public domain)
Uptime: 180+ days zero downtimeWhat Makes This Different
Most "free" threat feeds give you stale IP lists. We give you:
SSL Certificate Intelligence - Every IP enriched with cert CN, issuer, self-signed detection
JARM Fingerprints - Server-side TLS signatures (Cobalt Strike, Sliver, Brute Ratel detection)
JA3 Fingerprints - Client-side TLS signatures (AsyncRAT, Quasar, DcRat attribution)
MITRE ATT&CK Mapping - Tactics and techniques on every indicator
Confidence Scoring - 0-100 scale so you can tune your thresholds
Integration Guide
Option 1: Direct STIX 2.1 Bundle (Recommended)
# Full feed (last 30 days)
curl https://analytics.dugganusa.com/api/v1/stix-feed/v2Option 2: CSV Blocklists (For Firewalls)
# IP blocklist
curl https://analytics.dugganusa.com/api/v1/stix-feed/ips.csvOption 3: TAXII 2.1 Discovery
# Discovery document
curl https://analytics.dugganusa.com/api/v1/stix-feed/manifest.jsonSIEM Integration Examples
Splunk
| inputlookup dugganusa_threats.csv
| eval threat_source="DugganUSA"
| outputlookup threat_intel.csvDownload daily via scheduled search: ``bash curl -o /opt/splunk/etc/apps/search/lookups/dugganusa_threats.csv \ https://analytics.dugganusa.com/api/v1/stix-feed/ips.csv ``
Microsoft Sentinel
API Root: https://analytics.dugganusa.com/api/v1/stix-feed
Collection ID: dugganusa-threats
Elastic Security
{
"name": "DugganUSA Threat Feed",
"url": "https://analytics.dugganusa.com/api/v1/stix-feed/v2",
"interval": "1h",
"format": "stix"
}Palo Alto XSOAR
name: DugganUSA Feed
type: STIX
url: https://analytics.dugganusa.com/api/v1/stix-feed/v2
interval: 3600New This Week: Complete TLS Fingerprint Coverage
JARM (Server-Side)
We scan suspicious IPs and fingerprint their TLS implementation. Cobalt Strike, Metasploit, Sliver, and Brute Ratel each have distinct "accents" in how they do TLS handshakes.
Cobalt Strike default certs (serial 146473198)
Self-signed C2 certificates
DGA-generated certificate CNs
APT infrastructure patterns (HAINAN, CHINANET)
JA3 (Client-Side) - NEW
We now ingest 97 known malware JA3 fingerprints from SSLBL. When malware phones home, its TLS Client Hello has a unique signature.
AsyncRAT, Quasar, DcRat, BitRAT
Cobalt Strike beacons
Mythic, Havoc, Sliver agents
What We Don't Do
We don't paywall the feed
We don't require registration
We don't track who downloads
We don't sell your usage data
We don't throttle requests
Why? Because security is cumulative. When you block a C2 we discovered, that attacker loses infrastructure. That helps everyone.
Quality Assurance
Every indicator passes through our Judge Dredd 6D Framework:
D1 - Commit Compliance: Git-tracked, auditable changes
D2 - Corpus Alignment: Cross-referenced against multiple sources
D3 - Production Evidence: VirusTotal correlation, honeypot captures
D4 - Temporal Decay: Fresh indicators prioritized, stale ones aged out
D5 - Financial Efficiency: We don't pay per indicator (no perverse incentives)
D6 - Democratic Sharing: Published openly, CC0 licensed
Get Started
# Test it right now
curl -s https://analytics.dugganusa.com/api/v1/stix-feed/v2?days=1 | jq '.objects | length'Endpoints:
Purpose | URL |
STIX 2.1 Bundle | https://analytics.dugganusa.com/api/v1/stix-feed/v2 |
IP Blocklist | https://analytics.dugganusa.com/api/v1/stix-feed/ips.csv |
Feed Info | https://analytics.dugganusa.com/api/v1/stix-feed/info |
TAXII Manifest | https://analytics.dugganusa.com/api/v1/stix-feed/manifest.json |
Documentation | https://analytics.dugganusa.com/docs/stix-feed |
Questions? [email protected]
DugganUSA LLC - Minnesota, USA
"The gap is the mission."
Her name was Renee Nicole Good.
His name was Alex Jeffery Pretti.




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