Merge branch 'worktree-agent-aa3f0a8f'

.planning/phases/16-osint_threat_intel_mobile_dns_api_marketplaces/16-01-SUMMARY.md

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+---
+phase: 16-osint-threat-intel-mobile-dns-api-marketplaces
+plan: 01
+subsystem: recon
+tags: [virustotal, intelligencex, urlhaus, threat-intel, osint]
+
+requires:
+  - phase: 09-osint-infrastructure
+    provides: ReconSource interface, LimiterRegistry, Client, BuildQueries, ciLogKeyPattern
+provides:
+  - VirusTotalSource implementing ReconSource (credential-gated)
+  - IntelligenceXSource implementing ReconSource (credential-gated)
+  - URLhausSource implementing ReconSource (credentialless)
+affects: [16-osint-wiring, recon-engine-registration]
+
+tech-stack:
+  added: []
+  patterns: [three-step IX search flow (initiate/results/read), VT x-apikey auth, URLhaus form-encoded POST with tag/payload fallback]
+
+key-files:
+  created:
+    - pkg/recon/sources/virustotal.go
+    - pkg/recon/sources/virustotal_test.go
+    - pkg/recon/sources/intelligencex.go
+    - pkg/recon/sources/intelligencex_test.go
+    - pkg/recon/sources/urlhaus.go
+    - pkg/recon/sources/urlhaus_test.go
+  modified: []
+
+key-decisions:
+  - "VT uses x-apikey header per official API v3 spec"
+  - "IX uses three-step flow: POST search, GET results, GET file content per record"
+  - "URLhaus tag lookup with payload endpoint fallback for broader coverage"
+
+patterns-established:
+  - "Threat intel sources follow same SentrySource pattern with ciLogKeyPattern matching"
+
+requirements-completed: [RECON-INTEL-01, RECON-INTEL-02, RECON-INTEL-03]
+
+duration: 4min
+completed: 2026-04-06
+---
+
+# Phase 16 Plan 01: Threat Intelligence Sources Summary
+
+**VirusTotal, IntelligenceX, and URLhaus recon sources for detecting API keys in malware samples, breach archives, and malicious URL databases**
+
+## Performance
+
+- **Duration:** 4 min
+- **Started:** 2026-04-06T13:43:29Z
+- **Completed:** 2026-04-06T13:47:29Z
+- **Tasks:** 2
+- **Files modified:** 6
+
+## Accomplishments
+- VirusTotalSource searches VT Intelligence API for files containing API key patterns (credential-gated, 4 req/min rate limit)
+- IntelligenceXSource searches IX archive with three-step search/results/content-read flow (credential-gated)
+- URLhausSource searches abuse.ch API for malicious URLs with embedded keys (credentialless, always enabled)
+- All three sources use ciLogKeyPattern for consistent content matching across the recon framework
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **Task 1: VirusTotal and IntelligenceX sources** - `e02bad6` (feat)
+2. **Task 2: URLhaus source** - `35fa4ad` (feat)
+
+## Files Created/Modified
+- `pkg/recon/sources/virustotal.go` - VT Intelligence API search source
+- `pkg/recon/sources/virustotal_test.go` - httptest mocks for VT (4 tests)
+- `pkg/recon/sources/intelligencex.go` - IX archive search with three-step flow
+- `pkg/recon/sources/intelligencex_test.go` - httptest mocks for IX (4 tests)
+- `pkg/recon/sources/urlhaus.go` - abuse.ch URLhaus tag/payload search
+- `pkg/recon/sources/urlhaus_test.go` - httptest mocks for URLhaus (4 tests)
+
+## Decisions Made
+- VT uses x-apikey header per official API v3 spec
+- IX uses three-step flow: POST search initiation, GET results list, GET file content per record
+- URLhaus uses tag lookup endpoint with payload endpoint fallback for broader coverage
+
+## Deviations from Plan
+
+None - plan executed exactly as written.
+
+## Issues Encountered
+None
+
+## User Setup Required
+None - no external service configuration required.
+
+## Next Phase Readiness
+- Three threat intel sources ready for wiring into RegisterAll
+- VT and IX require API keys via config/env; URLhaus works immediately
+- All sources follow established ReconSource pattern
+
+---
+*Phase: 16-osint-threat-intel-mobile-dns-api-marketplaces*
+*Completed: 2026-04-06*