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Update zeek.md
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docs/tech briefs/network/zeek.md

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@@ -342,11 +342,12 @@ zeek -Cr http.pcap zeek-sniffpass
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Check:
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```
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cat notice.log | zeek-cut id.orig_h id.resp_h proto note msg
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=> SNIFFPASS::HTTP_POST_Password_Seen ... Password found for user ...
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```
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# => SNIFFPASS::HTTP_POST_Password_Seen ... Password found for user ...
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Geolocation enrichment (depends on local GeoLite DB):
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# (e.g., geoip-conn)
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- (e.g., geoip-conn)
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```
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zeek -Cr case1.pcap geoip-conn
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cat conn.log | zeek-cut uid id.orig_h id.resp_h geo.orig.country_code geo.orig.region geo.orig.city geo.resp.country_code geo.resp.region geo.resp.city
@@ -365,12 +366,12 @@ BIFs/protocols: /opt/zeek/share/zeek/base/bif, /opt/zeek/share/zeek/base/protoco
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Legacy Snort-to-Bro (snort2bro) is no longer supported in modern Zeek distributions; workflows diverged after rebranding.
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# End-To-End Investigation Example (Conceptual)
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1) Start broad: conn.log + files.log + intel.log; scan for outliers (rare ports, large transfers, new software).
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2) Pivot by UID to dns/http/ssl/ssh/ftp to extract URLs, JA3/TLS certs, user-agents, credential patterns.
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3) Inspect detection outputs: notice.log, signatures.log for corroborating signals.
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4) Correlate extracted files (files.log, pe.log, x509.log) back to servers and sessions; hash, detonate, or block.
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5) Summarize with known_hosts/services/software to see whether behavior is new or expected baseline.
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6) Refine signatures/scripts or enable frameworks to improve recall/precision; feed indicators back into intel.
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- Start broad: conn.log + files.log + intel.log; scan for outliers (rare ports, large transfers, new software).
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- Pivot by UID to dns/http/ssl/ssh/ftp to extract URLs, JA3/TLS certs, user-agents, credential patterns.
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- Inspect detection outputs: notice.log, signatures.log for corroborating signals.
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- Correlate extracted files (files.log, pe.log, x509.log) back to servers and sessions; hash, detonate, or block.
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- Summarize with known_hosts/services/software to see whether behavior is new or expected baseline.
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- Refine signatures/scripts or enable frameworks to improve recall/precision; feed indicators back into intel.
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# Quick Reference – Parameter & Path Table
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| Item | Value / Example | | |

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