GPT-6.1 Sol (effort default (no reasoning-effort override) · thinking off) on Account-takeover investigation across SSH auth, HTTP access and app audit logs in three different time bases
OGPT-6.1 Soldefault · thinking off · Codex CLI 0.163.0 (codex exec --json) · cloud · 2026-10-22 · by @bobsiopener
- Estimated cost
- $0.07
- Wall time
- 54s
- Human step-ins
- 0
- Outcome
- Pass
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Summary
Exact prompt
# Task: investigate a suspected account takeover Security got an alert about unusual data exports around mid-September 2026. Investigate the logs in `logs/` (`auth.log` is in the gateway's local time, UTC+2, without a year - the year is 2026; `access.log` is UTC; `app_audit.jsonl` has epoch milliseconds) plus `allowlist.txt`, and write `answers.json`: ``` {"q1": "<username of the compromised account>", "q2": "<IP address of the attacker's first successful login>", "q3": "<UTC time of that login, format YYYY-MM-DDTHH:MM:SSZ>", "q4": "<id of the API key the attacker created>", "q5": <integer: number of distinct account names (including invalid ones) targeted with failed logins from the attacker's /24 network>, "q6": <integer: total bytes (sum of the response-size field) successfully (HTTP 200) exported with the attacker's API key>} ``` Strings are compared exactly (q1 case-insensitively); q3 may also end in `+00:00` instead of `Z`. Also write `FINDINGS.md`: a short timeline (at least 5 bullet lines) of the incident. Answer only from the logs; no network.
Must separate a credential-stuffing /24 from an allow-listed pentest scanner and a legitimate user's typos, convert UTC+2 yearless syslog times to UTC, tie the attacker's login to an API key via audit IPs (not the victim's earlier legit key), and sum only HTTP 200 exports. Original benchmark task written for usecaserank.com. Headless, offline run on a reproducible fixture. Cost shown is a list-price API-equivalent estimate (run on a ChatGPT subscription, not billed).
Success criteria: 1. q1_account_correct: compromised username. 2. q2_ip_correct: attacker IP of first successful login. 3. q3_time_correct: that login's UTC time to the second. 4. q4_key_correct: attacker-created API key id. 5. q5_count_correct: distinct account names targeted from the attacker /24. 6. q6_bytes_correct: total bytes of HTTP 200 exports with the attacker key. 7. findings_timeline: FINDINGS.md has at least 5 bullet/numbered lines.
Setup notes: Use Case Scout batch6 case f09-auth-incident-forensics (offline fixture). Prepared with batch6/prepare.sh on the shared box; only TASK.md + starting files were copied to the agent machine, hidden key/tests stayed on the box. Prompt = TASK.md verbatim on stdin. Flags: --json -s workspace-write --skip-git-repo-check --ephemeral --ignore-user-config --ignore-rules -C <workdir>. Scored on the box with the scout's scorer: `python score.py WORKDIR KEYDIR`. Single run, no retries. User-level AGENTS.md (846 bytes, sha256 83ec4fe50da8) may have been in context; --ignore-user-config does not document excluding it. Serving model not confirmed: requested via -m; the event log does not echo the serving model id. Price source is secondary (pricing.json verification='secondary', https://www.actuia.com/en/news/ai-api-pricing-in-october-2026-050-to-50-for-output/), not an official OpenAI price page. Score: 7/7 checks. Cost is an ESTIMATE: measured tokens x pricing.json list price (ChatGPT plan, nothing billed); input_tokens include cached reads; output_tokens include reasoning tokens. Tool calls 6 (1 failed, recovered). Single run.
Estimated cost List-price estimate; not actually billed.
Metrics
- Estimated cost
- $0.07
- Wall time
- 54s
- Human step-ins
- 0
- Turns
- 1
| Model | Input tok | Output tok | Cost |
|---|---|---|---|
| OGPT-6.1 Solopenai/gpt-6.1-soleffort default (no reasoning-effort override) · thinking off | 126,362 | 1,717 | $0.07 |
Reproduce this run
- Use the use case prompt on the use case page.
- Same setup: GPT-6.1 Sol (openai/gpt-6.1-sol, effort default (no reasoning-effort override) · thinking off) via
Codex CLI 0.163.0 (codex exec --json), cloud. - It counts as a success only if it meets every success criterion: 1. q1_account_correct: compromised username. 2. q2_ip_correct: attacker IP of first successful login. 3. q3_time_correct: that login's UTC time to the second. 4. q4_key_correct: attacker-created API key id. 5. q5_count_correct: distinct account names targeted from the attacker /24. 6. q6_bytes_correct: total bytes of HTTP 200 exports with the attacker key. 7. findings_timeline: FINDINGS.md has at least 5 bullet/numbered lines.
- Log model, tokens, wall time, human step-ins and the evidence log, then submit it as a reproduction. A different model? Submit a head-to-head rerun.
How runs are scored: Methodology.
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Automated checks
Trust 80% comes from these checks (how Trust % works).
- Run date is not in the future : passed
- Model is in the dated pricing table : passed
- Cost recomputed from tokens matches : passed
- Cached tokens are consistent : passed
- Output throughput is plausible : passed
- Autonomy matches step-ins : passed
- Step-ins do not exceed turns : passed
- Retries agree with first-try result : passed
- Evidence log SHA-256 matches : passed
- Evidence log is substantial : passed
Evidence log
{"type": "thread.started", "thread_id": "01a1643f-9918-7680-a89e-594d82994167"}
{"type": "turn.started"}
{"type": "item.completed", "item": {"id": "item_0", "type": "agent_message", "text": "I\u2019ll correlate the logs in UTC, check the allowlist, and write `answers.json` and a short incident timeline using only the local evidence.\n"}}
{"type": "item.started", "item": {"id": "item_1", "type": "command_execution", "command": "/bin/bash -lc 'ls -la; rg --files logs; cat allowlist.txt'", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_1", "type": "command_execution", "command": "/bin/bash -lc 'ls -la; rg --files logs; cat allowlist.txt'", "aggregated_output": "total 20\ndrwxr-xr-x 7 bob bob 4096 Oct 22 11:34 .\ndrwxrwxr-x 3 bob bob 4096 Oct 22 11:34 ..\ndr-xr-xr-x 2 bob bob 40 Oct 22 11:34 .agents\ndr-xr-xr-x 2 bob bob 40 Oct 22 11:34 .aws\ndr-xr-xr-x 2 bob bob 40 Oct 22 11:34 .codex\ndr-xr-xr-x 2 bob bob 40 Oct 22 11:34 .git\n-rw-r--r-- 1 bob bob 1074 Oct 22 10:08 TASK.md\n-rw-r--r-- 1 bob bob 71 Oct 22 10:08 allowlist.txt\ndrwxr-xr-x 2 bob bob 4096 Oct 22 10:08 logs\nlogs/access.log\nlogs/app_audit.jsonl\nlogs/auth.log\n# approved scanners\n198.51.100.77 # quarterly pentest (Acme Security)\n", "exit_code": 0, "status": "completed"}}
{"type": "item.started", "item": {"id": "item_2", "type": "command_execution", "command": "/bin/bash -lc 'wc -l logs/*; head -n 8 logs/auth.log; head -n 5 logs/access.log; head -n 5 logs/app_audit.jsonl'", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_2", "type": "command_execution", "command": "/bin/bash -lc 'wc -l logs/*; head -n 8 logs/auth.log; head -n 5 logs/access.log; head -n 5 logs/app_audit.jsonl'", "aggregated_output": " 2290 logs/access.log\n 8 logs/app_audit.jsonl\n 1262 logs/auth.log\n 3560 total\nSep 14 08:06:19 gw1 sshd[1099]: Accepted password for ben.k from [REDACTED:ipv4] port 39281 ssh2\nSep 14 08:07:47 gw1 sshd[7127]: Accepted password for dev.m from [REDACTED:ipv4] port 51865 ssh2\nSep 14 08:22:17 gw1 sshd[6001]: Accepted password for hana.m from [REDACTED:ipv4] port 33647 ssh2\nSep 14 08:33:47 gw1 sshd[1468]: Accepted password for ivo.k from [REDACTED:ipv4] port 38298 ssh2\nSep 14 08:36:44 gw1 sshd[1992]: Accepted password for ben.m from [REDACTED:ipv4] port 49483 ssh2\nSep 14 08:39:45 gw1 sshd[2915]: Accepted password for fay.m from [REDACTED:ipv4] port 39892 ssh2\nSep 14 08:40:10 gw1 sshd[2064]: Accepted password for eli.m from [REDACTED:ipv4] port 35685 ssh2\nSep 14 08:44:36 gw1 sshd[6606]: Accepted password for cara.m from [REDACTED:ipv4] port 30041 ssh2\n10.20.0.13 - ben.k [14/Sep/2026:06:12:53 +0000] \"GET /api/files?page=2 HTTP/1.1\" 200 5536\n10.20.0.16 - dev.m [14/Sep/2026:06:14:22 +0000] \"GET /api/projects HTTP/1.1\" 200 8390\n10.20.0.13 - ben.k [14/Sep/2026:06:16:46 +0000] \"GET /api/files?page=2 HTTP/1.1\" 200 7727\n10.20.0.13 - ben.k [14/Sep/2026:06:17:16 +0000] \"GET /api/files?page=2 HTTP/1.1\" 200 5976\n10.20.0.13 - ben.k [14/Sep/2026:06:18:52 +0000] \"GET /api/projects HTTP/1.1\" 200 3346\n{\"ts\": 1789473600000, \"event\": \"api_key.created\", \"actor\": \"gus.m\", \"key_id\": \"key_400233\", \"ip\": \"[REDACTED:ipv4]\"}\n{\"ts\": 1789498800000, \"event\": \"api_key.created\", \"actor\": \"ana.k\", \"key_id\": \"key_281066\", \"ip\": \"[REDACTED:ipv4]\"}\n{\"ts\": 1789499136000, \"event\": \"api_key.created\", \"actor\": \"dev.k\", \"key_id\": \"key_791981\", \"ip\": \"[REDACTED:ipv4]\"}\n{\"ts\": 1789506000000, \"event\": \"api_key.created\", \"actor\": \"hana.k\", \"key_id\": \"key_798777\", \"ip\": \"[REDACTED:ipv4]\"}\n{\"ts\": 1789513667000, \"event\": \"api_key.created\", \"actor\": \"dev.k\", \"key_id\": \"key_591102\", \"ip\": \"[REDACTED:ipv4]\"}\n", "exit_code": 0, "status": "completed"}}
{"type": "item.started", "item": {"id": "item_3", "type": "command_execution", "command": "/bin/bash -lc \"cat logs/app_audit.jsonl; rg '203\\\\.0\\\\.113\\\\.|198\\\\.51\\\\.100\\\\.' logs/auth.log | head -n 25; rg 'key_' logs/access.log | head -n 15; rg 'Accepted.*(203\\\\.0\\\\.113|198\\\\.51\\\\.100)' logs/auth.log\"", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_3", "type": "command_execution", "command": "/bin/bash -lc \"cat logs/app_audit.jsonl; rg '203\\\\.0\\\\.113\\\\.|198\\\\.51\\\\.100\\\\.' logs/auth.log | head -n 25; rg 'key_' logs/access.log | head -n 15; rg 'Accepted.*(203\\\\.0\\\\.113|198\\\\.51\\\\.100)' logs/auth.log\"", "aggregated_output": "{\"ts\": 1789473600000, \"event\": \"api_key.created\", \"actor\": \"gus.m\", \"key_id\": \"key_400233\", \"ip\": \"[REDACTED:ipv4]\"}\n{\"ts\": 1789498800000, \"event\": \"api_key.created\", \"actor\": \"ana.k\", \"key_id\": \"key_281066\", \"ip\": \"[REDACTED:ipv4]\"}\n{\"ts\": 1789499136000, \"event\": \"api_key.created\", \"actor\": \"dev.k\", \"key_id\": \"key_791981\", \"ip\": \"[REDACTED:ipv4]\"}\n{\"ts\": 1789506000000, \"event\": \"api_key.created\", \"actor\": \"hana.k\", \"key_id\": \"key_798777\", \"ip\": \"[REDACTED:ipv4]\"}\n{\"ts\": 1789513667000, \"event\": \"api_key.created\", \"actor\": \"dev.k\", \"key_id\": \"key_591102\", \"ip\": \"[REDACTED:ipv4]\"}\n{\"ts\": 1789513686000, \"event\": \"mfa.disabled\", \"actor\": \"dev.k\", \"ip\": \"[REDACTED:ipv4]\"}\n{\"ts\": [REDACTED:credit_card], \"event\": \"api_key.created\", \"actor\": \"eli.k\", \"key_id\": \"key_589985\", \"ip\": \"[REDACTED:ipv4]\"}\n{\"ts\": 1789610400000, \"event\": \"api_key.created\", \"actor\": \"ivo.m\", \"key_id\": \"key_823961\", \"ip\": \"[REDACTED:ipv4]\"}\nSep 14 18:00:00 gw1 sshd[9435]: Failed password for hana.k from [REDACTED:ipv4] port 40000 ssh2\nSep 14 18:00:07 gw1 sshd[4610]: Failed password for ben.k from [REDACTED:ipv4] port 40001 ssh2\nSep 14 18:00:14 gw1 sshd[1049]: Failed password for ivo.m from [REDACTED:ipv4] port 40002 ssh2\nSep 14 18:00:21 gw1 sshd[2081]: Failed password for hana.m from [REDACTED:ipv4] port 40003 ssh2\nSep 14 18:00:28 gw1 sshd[8068]: Failed password for ana.m from [REDACTED:ipv4] port 40004 ssh2\nSep 14 18:00:35 gw1 sshd[1341]: Failed password for gus.m from [REDACTED:ipv4] port 40005 ssh2\nSep 14 18:00:42 gw1 sshd[5480]: Failed password for hana.m from [REDACTED:ipv4] port 40006 ssh2\nSep 14 18:00:49 gw1 sshd[9482]: Failed password for lia.k from [REDACTED:ipv4] port 40007 ssh2\nSep 14 18:00:56 gw1 sshd[5770]: Failed password for ben.k from [REDACTED:ipv4] port 40008 ssh2\nSep 14 18:01:03 gw1 sshd[2803]: Failed password for fay.k from [REDACTED:ipv4] port 40009 ssh2\nSep 14 18:01:10 gw1 sshd[1285]: Failed password for lia.k from [REDACTED:ipv4] port 40010 ssh2\nSep 14 18:01:17 gw1 sshd[2091]: Failed password for lia.k from [REDACTED:ipv4] port 40011 ssh2\nSep 14 18:01:24 gw1 sshd[7233]: Failed password for eli.m from [REDACTED:ipv4] port 40012 ssh2\nSep 14 18:01:31 gw1 sshd[1434]: Failed password for hana.k from [REDACTED:ipv4] port 40013 ssh2\nSep 14 18:01:38 gw1 sshd[3759]: Failed password for hana.k from [REDACTED:ipv4] port 40014 ssh2\nSep 14 18:01:45 gw1 sshd[1557]: Failed password for hana.k from [REDACTED:ipv4] port 40015 ssh2\nSep 14 18:01:52 gw1 sshd[1040]: Failed password for kai.k from [REDACTED:ipv4] port 40016 ssh2\nSep 14 18:01:59 gw1 sshd[3838]: Failed password for cara.k from [REDACTED:ipv4] port 40017 ssh2\nSep 14 18:02:06 gw1 sshd[3673]: Failed password for lia.m from [REDACTED:ipv4] port 40018 ssh2\nSep 14 18:02:13 gw1 sshd[2914]: Failed password for cara.k from [REDACTED:ipv4] port 40019 ssh2\nSep 14 18:02:20 gw1 sshd[4856]: Failed password for admin from [REDACTED:ipv4] port 40020 ssh2\nSep 14 18:02:27 gw1 sshd[8930]: Failed password for eli.k from [REDACTED:ipv4] port 40021 ssh2\nSep 14 18:02:34 gw1 sshd[2430]: Failed password for ivo.k from [REDACTED:ipv4] port 40022 ssh2\nSep 14 18:02:41 gw1 sshd[1352]: Failed password for hana.m from [REDACTED:ipv4] port 40023 ssh2\nSep 14 18:02:48 gw1 sshd[1040]: Failed password for dev.m from [REDACTED:ipv4] port 40024 ssh2\n203.0.113.201 - apikey:[REDACTED:secret_assignment] [15/Sep/2026:23:10:36 +0000] \"GET /api/export?project=1 HTTP/1.1\" 200 5589251\n203.0.113.201 - apikey:[REDACTED:secret_assignment] [15/Sep/2026:23:13:36 +0000] \"GET /api/export?project=2 HTTP/1.1\" 200 2765746\n203.0.113.201 - apikey:[REDACTED:secret_assignment] [15/Sep/2026:23:16:36 +0000] \"GET /api/export?project=3 HTTP/1.1\" 200 8788339\n203.0.113.201 - apikey:[REDACTED:secret_assignment] [15/Sep/2026:23:19:36 +0000] \"GET /api/export?project=4 HTTP/1.1\" 200 8512028\n203.0.113.201 - apikey:[REDACTED:secret_assignment] [15/Sep/2026:23:22:36 +0000] \"GET /api/export?project=5 HTTP/1.1\" 200 2009575\n203.0.113.201 - apikey:[REDACTED:secret_assignment] [15/Sep/2026:23:25:36 +0000] \"GET /api/export?project=6 HTTP/1.1\" 200 2963873\n203.0.113.201 - apikey:[REDACTED:secret_assignment] [15/Sep/2026:23:28:36 +0000] \"GET /api/export?project=7 HTTP/1.1\" 200 7487289\n203.0.113.201 - apikey:[REDACTED:secret_assignment] [15/Sep/2026:23:31:36 +0000] \"GET /api/export?project=8 HTTP/1.1\" 200 7201577\n203.0.113.201 - apikey:[REDACTED:secret_assignment] [15/Sep/2026:23:34:36 +0000] \"GET /api/export?project=9 HTTP/1.1\" 200 8255916\n203.0.113.201 - apikey:[REDACTED:secret_assignment] [15/Sep/2026:23:45:36 +0000] \"GET /api/export?project=99 HTTP/1.1\" 403 512\n10.20.0.17 - apikey:[REDACTED:secret_assignment] [16/Sep/2026:01:05:36 +0000] \"GET /api/export?project=0 HTTP/1.1\" 200 32739\n10.20.0.17 - apikey:[REDACTED:secret_assignment] [16/Sep/2026:01:06:36 +0000] \"GET /api/export?project=1 HTTP/1.1\" 200 49120\n10.20.0.17 - apikey:[REDACTED:secret_assignment] [16/Sep/2026:01:07:36 +0000] \"GET /api/export?project=2 HTTP/1.1\" 200 22645\n10.20.0.17 - apikey:[REDACTED:secret_assignment] [16/Sep/2026:01:08:36 +0000] \"GET /api/export?project=3 HTTP/1.1\" 200 42897\nSep 16 01:05:36 gw1 sshd[5630]: Accepted password for dev.k from [REDACTED:ipv4] port 44123 ssh2\n", "exit_code": 0, "status": "completed"}}
{"type": "item.started", "item": {"id": "item_4", "type": "command_execution", "command": "/bin/bash -lc \"python - <<'PY'\nimport re,collections,datetime,json\nfrom pathlib import Path\nfails=[]; accepts=[]\nfor n,l in enumerate(Path('logs/auth.log').read_text().splitlines(),1):\n m=re.search(r'(Failed|Accepted) password for (?:invalid user )?(\\\\S+) from (\\\\S+)',l)\n if m and m[3].startswith('203.0.113.'):\n (fails if m[1]=='Failed' else accepts).append((n,l,m[2],m[3]))\nprint('failed count',len(fails),'distinct',len({x[2] for x in fails}),'ips',dict(collections.Counter(x[3] for x in fails)))\nprint('names',sorted({x[2] for x in fails}))\nprint('first fail',fails[0]);print('last fail',fails[-1]);print('accepts',accepts)\nfor l in Path('logs/app_audit.jsonl').read_text().splitlines():\n d=json.loads(l);print(datetime.datetime.fromtimestamp(d['ts']/1000,datetime.timezone.utc).isoformat(),d)\nrows=[]\nfor n,l in enumerate(Path('logs/access.log').read_text().splitlines(),1):\n if 'apikey:[REDACTED:secret_assignment] ' in l:\n print(n,l)\n m=re.search(r'\\\"\\\\S+ (/api/export[\"'^ ]*) HTTP/[''^'\"\\\\\\\"]+\\\" (\\\\d+) (\\\\d+)\"'$'\"',l)\n if m and m[2]=='200':rows.append(int(m[3]))\nprint('export count',len(rows),'bytes',sum(rows))\nPY\"", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_4", "type": "command_execution", "command": "/bin/bash -lc \"python - <<'PY'\nimport re,collections,datetime,json\nfrom pathlib import Path\nfails=[]; accepts=[]\nfor n,l in enumerate(Path('logs/auth.log').read_text().splitlines(),1):\n m=re.search(r'(Failed|Accepted) password for (?:invalid user )?(\\\\S+) from (\\\\S+)',l)\n if m and m[3].startswith('203.0.113.'):\n (fails if m[1]=='Failed' else accepts).append((n,l,m[2],m[3]))\nprint('failed count',len(fails),'distinct',len({x[2] for x in fails}),'ips',dict(collections.Counter(x[3] for x in fails)))\nprint('names',sorted({x[2] for x in fails}))\nprint('first fail',fails[0]);print('last fail',fails[-1]);print('accepts',accepts)\nfor l in Path('logs/app_audit.jsonl').read_text().splitlines():\n d=json.loads(l);print(datetime.datetime.fromtimestamp(d['ts']/1000,datetime.timezone.utc).isoformat(),d)\nrows=[]\nfor n,l in enumerate(Path('logs/access.log').read_text().splitlines(),1):\n if 'apikey:[REDACTED:secret_assignment] ' in l:\n print(n,l)\n m=re.search(r'\\\"\\\\S+ (/api/export[\"'^ ]*) HTTP/[''^'\"\\\\\\\"]+\\\" (\\\\d+) (\\\\d+)\"'$'\"',l)\n if m and m[2]=='200':rows.append(int(m[3]))\nprint('export count',len(rows),'bytes',sum(rows))\nPY\"", "aggregated_output": "/bin/bash: line 1: python: command not found\n", "exit_code": 127, "status": "failed"}}
{"type": "item.started", "item": {"id": "item_5", "type": "command_execution", "command": "/bin/bash -lc \"python3 - <<'PY'\nimport re,collections,datetime,json\nfrom pathlib import Path\nfails=[]; accepts=[]\nfor n,l in enumerate(Path('logs/auth.log').read_text().splitlines(),1):\n m=re.search(r'(Failed|Accepted) password for (?:invalid user )?(\\\\S+) from (\\\\S+)',l)\n if m and m[3].startswith('203.0.113.'):\n (fails if m[1]=='Failed' else accepts).append((n,l,m[2],m[3]))\nprint('failed count',len(fails),'distinct',len({x[2] for x in fails}),'ips',dict(collections.Counter(x[3] for x in fails)))\nprint('names',sorted({x[2] for x in fails}))\nprint('first fail',fails[0]);print('last fail',fails[-1]);print('accepts',accepts)\nfor l in Path('logs/app_audit.jsonl').read_text().splitlines():\n d=json.loads(l);print(datetime.datetime.fromtimestamp(d['ts']/1000,datetime.timezone.utc).isoformat(),d)\nrows=[]\nfor n,l in enumerate(Path('logs/access.log').read_text().splitlines(),1):\n if 'apikey:[REDACTED:secret_assignment] ' in l:\n print(n,l)\n m=re.search(r'\\\"\\\\S+ (/api/export[\"'^ ]*) HTTP/[''^'\"\\\\\\\"]+\\\" (\\\\d+) (\\\\d+)\"'$'\"',l)\n if m and m[2]=='200':rows.append(int(m[3]))\nprint('export count',len(rows),'bytes',sum(rows))\nPY\"", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_5", "type": "command_execution", "command": "/bin/bash -lc \"python3 - <<'PY'\nimport re,collections,datetime,json\nfrom pathlib import Path\nfails=[]; accepts=[]\nfor n,l in enumerate(Path('logs/auth.log').read_text().splitlines(),1):\n m=re.search(r'(Failed|Accepted) password for (?:invalid user )?(\\\\S+) from (\\\\S+)',l)\n if m and m[3].startswith('203.0.113.'):\n (fails if m[1]=='Failed' else accepts).append((n,l,m[2],m[3]))\nprint('failed count',len(fails),'distinct',len({x[2] for x in fails}),'ips',dict(collections.Counter(x[3] for x in fails)))\nprint('names',sorted({x[2] for x in fails}))\nprint('first fail',fails[0]);print('last fail',fails[-1]);print('accepts',accepts)\nfor l in Path('logs/app_audit.jsonl').read_text().splitlines():\n d=json.loads(l);print(datetime.datetime.fromtimestamp(d['ts']/1000,datetime.timezone.utc).isoformat(),d)\nrows=[]\nfor n,l in enumerate(Path('logs/access.log').read_text().splitlines(),1):\n if 'apikey:[REDACTED:secret_assignment] ' in l:\n print(n,l)\n m=re.search(r'\\\"\\\\S+ (/api/export[\"'^ ]*) HTTP/[''^'\"\\\\\\\"]+\\\" (\\\\d+) (\\\\d+)\"'$'\"',l)\n if m and m[2]=='200':rows.append(int(m[3]))\nprint('export count',len(rows),'bytes',sum(rows))\nPY\"", "aggregated_output": "failed count 53 distinct 18 ips {'[REDACTED:ipv4]': 14, '[REDACTED:ipv4]': 14, '[REDACTED:ipv4]': 13, '[REDACTED:ipv4]': 12}\nnames ['ana.m', 'ben.k', 'ben.m', 'cara.k', 'dev.k', 'dev.m', 'eli.k', 'eli.m', 'fay.m', 'gus.m', 'hana.k', 'hana.m', 'ivo.k', 'kai.m', 'lia.k', 'lia.m', 'root', 'test']\nfirst fail (839, 'Sep 16 01:03:03 gw1 sshd[9822]: Failed password for ben.k from [REDACTED:ipv4] port 53259 ssh2', 'ben.k', '[REDACTED:ipv4]')\nlast fail (892, 'Sep 16 01:05:42 gw1 sshd[2688]: Failed password for invalid user test from [REDACTED:ipv4] port 44478 ssh2', 'test', '[REDACTED:ipv4]')\naccepts [(890, 'Sep 16 01:05:36 gw1 sshd[5630]: Accepted password for dev.k from [REDACTED:ipv4] port 44123 ssh2', 'dev.k', '[REDACTED:ipv4]')]\n2026-09-15T12:00:00+00:00 {'ts': 1789473600000, 'event': 'api_key.created', 'actor': 'gus.m', 'key_id': 'key_400233', 'ip': '[REDACTED:ipv4]'}\n2026-09-15T19:00:00+00:00 {'ts': 1789498800000, 'event': 'api_key.created', 'actor': 'ana.k', 'key_id': 'key_281066', 'ip': '[REDACTED:ipv4]'}\n2026-09-15T19:05:36+00:00 {'ts': 1789499136000, 'event': 'api_key.created', 'actor': 'dev.k', 'key_id': 'key_791981', 'ip': '[REDACTED:ipv4]'}\n2026-09-15T21:00:00+00:00 {'ts': 1789506000000, 'event': 'api_key.created', 'actor': 'hana.k', 'key_id': 'key_798777', 'ip': '[REDACTED:ipv4]'}\n2026-09-15T23:07:47+00:00 {'ts': 1789513667000, 'event': 'api_key.created', 'actor': 'dev.k', 'key_id': 'key_591102', 'ip': '[REDACTED:ipv4]'}\n2026-09-15T23:08:06+00:00 {'ts': 1789513686000, 'event': 'mfa.disabled', 'actor': 'dev.k', 'ip': '[REDACTED:ipv4]'}\n2026-09-16T06:00:00+00:00 {'ts': [REDACTED:credit_card], 'event': 'api_key.created', 'actor': 'eli.k', 'key_id': 'key_589985', 'ip': '[REDACTED:ipv4]'}\n2026-09-17T02:00:00+00:00 {'ts': 1789610400000, 'event': 'api_key.created', 'actor': 'ivo.m', 'key_id': 'key_823961', 'ip': '[REDACTED:ipv4]'}\n1334 [REDACTED:ipv4] - apikey:[REDACTED:secret_assignment] [15/Sep/2026:23:10:36 +0000] \"GET /api/export?project=1 HTTP/1.1\" 200 5589251\n1335 [REDACTED:ipv4] - apikey:[REDACTED:secret_assignment] [15/Sep/2026:23:13:36 +0000] \"GET /api/export?project=2 HTTP/1.1\" 200 2765746\n1336 [REDACTED:ipv4] - apikey:[REDACTED:secret_assignment] [15/Sep/2026:23:16:36 +0000] \"GET /api/export?project=3 HTTP/1.1\" 200 8788339\n1337 [REDACTED:ipv4] - apikey:[REDACTED:secret_assignment] [15/Sep/2026:23:19:36 +0000] \"GET /api/export?project=4 HTTP/1.1\" 200 8512028\n1338 [REDACTED:ipv4] - apikey:[REDACTED:secret_assignment] [15/Sep/2026:23:22:36 +0000] \"GET /api/export?project=5 HTTP/1.1\" 200 2009575\n1339 [REDACTED:ipv4] - apikey:[REDACTED:secret_assignment] [15/Sep/2026:23:25:36 +0000] \"GET /api/export?project=6 HTTP/1.1\" 200 2963873\n1342 [REDACTED:ipv4] - apikey:[REDACTED:secret_assignment] [15/Sep/2026:23:28:36 +0000] \"GET /api/export?project=7 HTTP/1.1\" 200 7487289\n1346 [REDACTED:ipv4] - apikey:[REDACTED:secret_assignment] [15/Sep/2026:23:31:36 +0000] \"GET /api/export?project=8 HTTP/1.1\" 200 7201577\n1348 [REDACTED:ipv4] - apikey:[REDACTED:secret_assignment] [15/Sep/2026:23:34:36 +0000] \"GET /api/export?project=9 HTTP/1.1\" 200 8255916\n1358 [REDACTED:ipv4] - apikey:[REDACTED:secret_assignment] [15/Sep/2026:23:45:36 +0000] \"GET /api/export?project=99 HTTP/1.1\" 403 512\nexport count 9 bytes 53573594\n", "exit_code": 0, "status": "completed"}}
{"type": "item.started", "item": {"id": "item_6", "type": "command_execution", "command": "/bin/bash -lc \"python3 - <<'PY'\nfrom pathlib import Path\nimport json\nanswers={'q1':'dev.k','q2':'[REDACTED:ipv4]','q3':'2026-09-15T23:05:36Z','q4':'key_591102','q5':18,'q6':53573594}\nPath('answers.json').write_text(json.dumps(answers,indent=2)+'\\\\n')\nPath('FINDINGS.md').write_text('''# Incident findings\n\nAll times below are UTC. Gateway auth timestamps use year 2026 and were converted from UTC+2; audit epoch milliseconds were converted to UTC.\n\n- 2026-09-14 16:00:00: Failed logins from [REDACTED:ipv4] begin. This IP is explicitly listed in allowlist.txt as the approved quarterly pentest scanner.\n- 2026-09-15 19:05:36: dev.k creates key_791981 from internal IP [REDACTED:ipv4], a separate key from the one used by the attacker (app_audit.jsonl:3).\n- 2026-09-15 23:03:03\u201323:05:42: The attacker\u2019s [REDACTED:ipv4]/24 network generates 53 failed logins from .14, .15, .88, and .201 against 18 distinct account names, including invalid names root and test (auth.log:839\u2013892).\n- 2026-09-15 23:05:36: First successful attacker login: dev.k from [REDACTED:ipv4]. The gateway records this as Sep 16 01:05:36 local time (auth.log:890).\n- 2026-09-15 23:07:47: dev.k creates API key key_591102 from [REDACTED:ipv4] (app_audit.jsonl:5).\n- 2026-09-15 23:08:06: MFA is disabled for dev.k from the same IP (app_audit.jsonl:6).\n- 2026-09-15 23:10:36\u201323:34:36: [REDACTED:ipv4] uses key_591102 for nine successful HTTP 200 exports, projects 1\u20139. Their response-size fields total 53,573,594 bytes (access.log:1334\u20131348).\n- 2026-09-15 23:45:36: The same API key attempts to export project 99; HTTP 403 returns 512 bytes. This failed export is excluded from the byte total (access.log:1358).\n''')\nassert json.loads(Path('answers.json').read_text())==answers\nprint('Wrote and validated answers.json and FINDINGS.md')\nPY\"", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_6", "type": "command_execution", "command": "/bin/bash -lc \"python3 - <<'PY'\nfrom pathlib import Path\nimport json\nanswers={'q1':'dev.k','q2':'[REDACTED:ipv4]','q3':'2026-09-15T23:05:36Z','q4':'key_591102','q5':18,'q6':53573594}\nPath('answers.json').write_text(json.dumps(answers,indent=2)+'\\\\n')\nPath('FINDINGS.md').write_text('''# Incident findings\n\nAll times below are UTC. Gateway auth timestamps use year 2026 and were converted from UTC+2; audit epoch milliseconds were converted to UTC.\n\n- 2026-09-14 16:00:00: Failed logins from [REDACTED:ipv4] begin. This IP is explicitly listed in allowlist.txt as the approved quarterly pentest scanner.\n- 2026-09-15 19:05:36: dev.k creates key_791981 from internal IP [REDACTED:ipv4], a separate key from the one used by the attacker (app_audit.jsonl:3).\n- 2026-09-15 23:03:03\u201323:05:42: The attacker\u2019s [REDACTED:ipv4]/24 network generates 53 failed logins from .14, .15, .88, and .201 against 18 distinct account names, including invalid names root and test (auth.log:839\u2013892).\n- 2026-09-15 23:05:36: First successful attacker login: dev.k from [REDACTED:ipv4]. The gateway records this as Sep 16 01:05:36 local time (auth.log:890).\n- 2026-09-15 23:07:47: dev.k creates API key key_591102 from [REDACTED:ipv4] (app_audit.jsonl:5).\n- 2026-09-15 23:08:06: MFA is disabled for dev.k from the same IP (app_audit.jsonl:6).\n- 2026-09-15 23:10:36\u201323:34:36: [REDACTED:ipv4] uses key_591102 for nine successful HTTP 200 exports, projects 1\u20139. Their response-size fields total 53,573,594 bytes (access.log:1334\u20131348).\n- 2026-09-15 23:45:36: The same API key attempts to export project 99; HTTP 403 returns 512 bytes. This failed export is excluded from the byte total (access.log:1358).\n''')\nassert json.loads(Path('answers.json').read_text())==answers\nprint('Wrote and validated answers.json and FINDINGS.md')\nPY\"", "aggregated_output": "Wrote and validated answers.json and FINDINGS.md\n", "exit_code": 0, "status": "completed"}}
{"type": "item.completed", "item": {"id": "item_7", "type": "agent_message", "text": "Created [answers.json](answers.json) and [FINDINGS.md](FINDINGS.md).\n\nCompromised account: `dev.k`. The attacker targeted 18 distinct account names and successfully exported **53,573,594 bytes** using `key_591102`. No network access was used."}}
{"type": "turn.completed", "usage": {"input_tokens": 126362, "cached_input_tokens": 107648, "cache_write_input_tokens": 0, "output_tokens": 1717, "reasoning_output_tokens": 0}}