Rewrite vhost module as virtualhost with native blasthttp#2993
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liquidsec
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Brute-forces virtual hosts via HTTP Host headers and HTTPS SNI, with wildcard detection, canary consistency checks, keyword-based filtering, certificate SAN extraction, and mutation generation. Uses blasthttp resolve_ip for DNS pinning.
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## dev #2993 +/- ##
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Move compute_simhash off the process pool (run_in_executor_mp) onto the CPU thread pool (run_in_executor_cpu) via a new _response_similarity helper. Simhash work is short and inputs are truncated to ~3KB inside compute_simhash, so pickle/IPC overhead and broken-pool risk outweigh any parallelism win — and the recent 300s timeout on run_in_executor_mp was orphaning _test_virtualhost tasks with uncaught TimeoutError. Also remove stale 'CurlError'/'curl error' debug strings left over from the curl-helper removal.
… DictHostEvent compatibility
…lhost (vestigial name, no curl in body)
resolved_hosts can include CNAME targets (hostnames) alongside A/AAAA records, so the previous code emitted hostnames in the VIRTUAL_HOST event's 'ip' field. Filter to actual IPs at the probe-candidate sites, and use blasthttp's response.peer_ip (with host_ip fallback) for the emitted ip — that's the ground-truth IP the response came from.
Prevents the rejection from bubbling up as a warning through as_completed.
Register VIRTUAL_HOST as DictHostEvent with host+virtual_host dedup, use local RNG instead of global random.seed(), fix produced_events (DNS_NAME_UNVERIFIED not DNS_NAME), drop unused pyOpenSSL dep, fix config fallback values, and discard results on flood detection.
ausmaster
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Jun 16, 2026
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Summary
Complete rewrite of the
vhostmodule (now renamed tovirtualhost). The old module was a thin wrapper around theffufGo binary for Host header fuzzing. The new module is a native Python implementation using blasthttp for all HTTP requests, with significantly expanded detection capabilities.Requires #2992 (blasthttp integration). Supersedes #2672.
What changed from the old vhost module
Architecture:
self.helpers.request()withresolve_ipfor DNS pinningcert_infofor certificate SAN extractionNew detection capabilities:
Event changes:
Renamed: vhost -> virtualhost, VHOST -> VIRTUAL_HOST, deadly flag removed