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346127e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 | #!/usr/bin/env bash
# Export raw ES evidence for one case time-window to NDJSON, then pseudonymize.
#
# Data lives in the LIVE cluster; this snapshots the docs behind a case so the
# corpus is portable / shareable (after pseudonymization).
#
# Setup (do NOT commit the password):
# export ES_URL="https://your-es-host:9200"
# export ES_USER="elastic"
# export ES_PASS="<the elastic password>" # from Kibana / your ES keystore
# export BENCH_PSEUDO_SALT="<stable secret>"
#
# Usage:
# ./export_case.sh <out_dir> <host.name> <start_utc> <end_utc> [index_pattern]
# Example (case-01):
# ./export_case.sh ../../corpus/cases/case-01-recon/raw ubuntu-2404-noble-amd64-base \
# 2026-07-29T02:20:00Z 2026-07-29T02:35:00Z
set -euo pipefail
OUT="${1:?out_dir}"; HOST="${2:?host.name}"; START="${3:?start_utc}"; END="${4:?end_utc}"
INDEX="${5:-logs-endpoint.events.*,logs-zeek.*,logs-suricata.*,logs-nginx.*,.alerts-security.alerts-*}"
: "${ES_URL:?set ES_URL}"; : "${ES_USER:?set ES_USER}"; : "${ES_PASS:?set ES_PASS}"
HERE="$(cd "$(dirname "$0")" && pwd)"
mkdir -p "$OUT"
query() {
cat <<JSON
{ "size": 10000,
"sort": [{"@timestamp": "asc"}],
"query": { "bool": { "filter": [
{"range": {"@timestamp": {"gte": "$START", "lte": "$END"}}},
{"term": {"host.name": "$HOST"}}
]}}}
JSON
}
RAW="$OUT/evidence.raw.ndjson"
echo "[*] exporting $INDEX host=$HOST $START..$END"
curl -sk -u "$ES_USER:$ES_PASS" -H 'Content-Type: application/json' \
"$ES_URL/$INDEX/_search" -d "$(query)" \
| python3 -c 'import sys,json; [print(json.dumps(h["_source"])) for h in json.load(sys.stdin).get("hits",{}).get("hits",[])]' \
> "$RAW"
echo "[*] $(wc -l < "$RAW") docs -> $RAW"
# pseudonymize (deterministic; preserves correlatability)
python3 "$HERE/pseudonymize.py" < "$RAW" > "$OUT/evidence.pseudo.ndjson"
echo "[*] pseudonymized -> $OUT/evidence.pseudo.ndjson"
echo "[!] keep evidence.raw.ndjson private; distribute only *.pseudo.ndjson"
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