OSINT Threat Intelligence: Multi-Source Feed Aggregation & IOC Enrichment

Overview#

A single threat intelligence feed tells you what one organisation or vendor has observed. Fifty feeds, normalised and deduplicated, tell you what the broader security community knows. The gap between those two positions is where attacks succeed: threats that appear in an industry ISAC feed before showing up in a commercial product, or government CERT advisories that haven't yet made it into the tools a SOC team uses daily. Threat Intelligence aggregates 50+ feeds from commercial providers, government agencies, open-source projects, and security communities into a single normalised stream, with ML-powered confidence scoring that helps analysts focus on what actually warrants attention.

The platform normalises heterogeneous feed formats into a consistent representation, merges duplicate indicators across sources, and applies confidence scoring to prioritize actionable threat intelligence.

Key Features#

• Multi-Source Feed Aggregation: Ingest and normalise 50+ threat intelligence feeds from premium commercial providers, government CERT organisations, ISACs, open-source feeds, and security community sharing platforms
• IOC Enrichment: Automated enrichment of indicators of compromise with geolocation, WHOIS data, reputation scoring, related indicators, and historical context from multiple intelligence sources
• Confidence Scoring: ML-powered confidence assessment based on source reputation, indicator age, cross-source validation, and historical accuracy for prioritized threat response
• Temporal Decay Modelling: Configurable relevance decay that reduces IOC priority over time, ensuring security teams focus on current threats rather than stale indicators
• Threat Actor Intelligence: Track known threat groups, their tools, techniques, procedures, and infrastructure with campaign attribution and targeting pattern analysis
• Vulnerability Intelligence: Monitor vulnerability disclosures, exploit availability, and active exploitation status to prioritize patching and defensive measures
• Custom Feed Management: Import custom threat intelligence from private sharing groups, internal research, and partner organisations with standardised normalisation
• Real-Time Alerting: Instant notifications on high-confidence indicators matching organisational infrastructure, with configurable alert routing and severity thresholds

Use Cases#

• Security Operations: Enrich security alerts with threat intelligence context, validate detections against multi-source indicators, and prioritize response based on threat actor attribution and confidence scoring
• Threat Hunting: Proactively search organisational environments for indicators from threat intelligence feeds, identifying compromises that evade automated detection
• Vulnerability Prioritization: Focus patching efforts on vulnerabilities with active exploitation, available exploits, and threat actor interest based on real-time intelligence
• Incident Response: Rapidly contextualize indicators discovered during incidents with threat actor attribution, related infrastructure, and campaign intelligence for scope assessment
• Strategic Intelligence: Monitor threat landscape trends, emerging attack techniques, and threat actor targeting patterns to inform security strategy and resource allocation

Integration#

The platform integrates with SIEM platforms for automated IOC matching, SOAR platforms for orchestrated response workflows, vulnerability management systems for risk-based prioritization, and the broader Argus OSINT ecosystem for cross-domain intelligence correlation. Threat indicators export via STIX/TAXII to OpenCTI and MISP, with MISP Modules enabling automated malware intelligence enrichment and community sharing. Works natively with Cortex (TheHive) for analyst-driven indicator investigation and connects to all 153 third-party provider integrations available through the Argus provider orchestration layer.

Open Standards#

• OASIS STIX 2.1: Threat indicators, threat-actor records, malware entries, vulnerability objects, and intelligence reports are ingested and exported as fully conformant STIX 2.1 Structured Threat Information Expression bundles, including bidirectional SDO conversion and spec-version validation via the stix2 library.
• OASIS TAXII 2.1: Automated feed polling and bundle publishing use the Trusted Automated eXchange of Intelligence Information 2.1 protocol, with paginated collection polling via X-TAXII-Date-Added-Last, collection discovery, and authenticated bundle push to remote TAXII servers.
• MITRE ATT&CK: Threat actor TTP matching and campaign attribution are grounded in MITRE ATT&CK technique and tactic identifiers, stored in a dedicated techniques table and used to calculate attribution confidence scores.
• TLP (Traffic Light Protocol, FIRST): Every indicator and bundle carries a Traffic Light Protocol marking resolved from STIX object_marking_refs marking-definition IDs (WHITE, GREEN, AMBER, AMBER+STRICT, RED, CLEAR), which maps directly to the platform's internal secrecy classification.
• CVSS / CVE (FIRST / MITRE): Vulnerability indicators carry CVE identifiers and CVSS score and vector fields (0.0, 10.0 range enforced), and CVSS scores are surfaced on STIX vulnerability SDOs via x_argus_cvss_score during ingest.
• Sigma (SigmaHQ): Detection rules are parsed from SigmaHQ YAML format using pySigma, ATT&CK technique tags are extracted from rule metadata, and rules are translated to SIEM query languages via configurable pySigma backends.
• YARA: Indicator of compromise records support a yara_rule IOC type, enabling storage and correlation of YARA malware-detection rule signatures alongside network and file-based indicators.
• RFC 8484 (DNS over HTTPS): Domain and IP address indicators are enriched via DNS-over-HTTPS queries, providing passive DNS resolution data without exposing plaintext DNS queries to the network path.

Last Reviewed: 2026-02-23 Last Updated: 2026-04-14