162b6988f8
D-011 — `regex_extract(text, pattern, *, group=1, name=None)`: - engine google-re2 (linear-time, ReDoS-safe), `re` fallback with 1 MB cap. - first match only. - no match → raises Jinja2 `TemplateError` (no silent default — cleanup templates must fail loud when source string drifts). - default capture is group 1 with fallback to group(0) when the pattern has no groups; named groups via `name="<name>"`. D-012 — `outputs.blob()`: - reads the gzip-compressed CAS file from `MIMIC_BLOB_ROOT`. - 10 MB cap is applied **after** decompression. - decode UTF-8 with latin-1 fallback; never raises (missing / corrupt / non-gzip blobs return empty string, logged at WARNING). Unit tests rewritten to cover both the new fail-loud regex contract and the gzip read path. 49 unit tests pass; ruff clean.
Mimic
Internal BAS (Breach & Attack Simulation) platform for the Red Team. Replays TTPs from engagement journals or an internal ATT&CK library against client infrastructure through VPN/relay, in white-glove coordination with the SOC.
Output: a coverage report mapped to MITRE ATT&CK — measurable, reproducible, archived.
Status
ready-with-prereqs — spec frozen on 2026-05-19, 23 review patches integrated.
Code start blocked on:
- PR1 — Mythic API documentation + pinned version (lead RT)
- PR2 — Internal C2 interface spec + journal export example (internal C2 team)
- PR3 — RT graphic charter for the PDF report (lead RT)
While PR1/PR2/PR3 are open, sprint 0 focuses on the unblocked skeleton.
Spec
The authoritative spec lives in the RT-SecondBrain vault:
Projects/Mimic — Spec.md. Do not duplicate it here.
In-repo documentation:
CHANGELOG.md— chronological log of features, decisions, rollbacks.tasks/spec-decisions.md— implementation arbitrations on top of the spec.tasks/todo.md— current sprint backlog.
Stack (frozen)
- Backend Python 3.12 / Flask / Flask-SocketIO / SQLAlchemy 2 / Pydantic 2 / Alembic / WeasyPrint / pytest + testcontainers / ruff / mypy strict
- Frontend TypeScript / React 18+ / Vite / Tailwind 4 / TanStack Query 5 / Recharts / Playwright
- Storage Postgres (prod) / SQLite (pure-logic unit tests) / testcontainers Postgres (audit log, RBAC, write-only role — incl. unit tests of Postgres-specific behavior, per H38)
- Deploy Docker images + Ansible deployment playbook (per D-010). Reverse proxy (Caddy + TLS + IP allowlist) handled by existing RT infrastructure, out of Mimic scope (D-007).
Layout
mimic/
├── backend/ # Flask app, connectors, orchestrator, reporting, CLI
├── frontend/ # Vite + React app
├── docs/ # Architecture notes, ADRs, deployment
└── tasks/ # Sprint backlog, decisions, lessons
Conventions
- Branches:
feature/<scope>,fix/<scope>,docs/<scope>,chore/<scope>. Long-lived:main. - Commits: Conventional Commits (
feat:,fix:,chore:,docs:,test:,refactor:). - PRs: each branch → review (
code-reviewer) → team-lead merges. No direct push tomain.
Build & run
make targets land at the end of sprint 0. For now the repo is skeleton-only.
Licensing
Internal — proprietary, RT use only. Do not redistribute.