# Security Alert Center (SAC)

Self-hosted hub for collecting, storing, and displaying security events from Linux and Windows hosts.

**Русский:** [README.md](README.md)

## Agents (separate repositories)

| Repository | Role |
|------------|------|
| [ssh-monitor](https://github.com/PTah/ssh-monitor) | Linux: SSH, sudo, logind, brute-force, IP ban |
| [RDP-login-monitor](https://github.com/PTah/RDP-login-monitor) | Windows: RDP/RDS, RD Gateway, WinRM, admin share C$/ADMIN$ |
| **security-alert-center** (this repo) | Ubuntu 24.04: API, database, UI, notifications |

## Status

**Version:** `0.9.0`  
**Stack:** FastAPI, PostgreSQL, Vue 3, JWT, SSE  
**Deploy:** `sudo /opt/sac-deploy.sh` (see `deploy/sac-deploy.sh`)

## UI screenshots

| Overview | Events | Problems |
|----------|--------|----------|
| ![SAC dashboard](docs/screenshots/ui-overview.png) | ![SAC events](docs/screenshots/ui-events.png) | ![SAC problems](docs/screenshots/ui-problems.png) |

## What is monitored

Agents send events via the [ingest contract](docs/agent-integration.md) (`type`, `severity`, `details`):

- **Linux — [ssh-monitor](https://github.com/PTah/ssh-monitor):** SSH success/failure, **sudo**, **systemd-logind**, brute-force and IP ban (ipset), thresholds without ban, daily report, heartbeat.
- **Windows — [RDP-login-monitor](https://github.com/PTah/RDP-login-monitor):**
  - **RDP/RDS** (4624/4625);
  - **RD Gateway** (302/303), **WinRM / PowerShell Remoting** (Enter-PSSession, event ID 91);
  - **admin shares `C$` / `ADMIN$`** (Security **5140**, `smb.admin_share.access`);
  - **RDS Shadow Control** (RCM 20506/20507/20510), account lockout **4740**, daily report, heartbeat, **hardware inventory** (`agent.inventory`).
- **SAC platform:** problems (correlation), Telegram/email/webhook, UI login rate limit, SSE dashboard and live host updates, agent online/stale by heartbeat, host detail with hardware snapshot.

**Event type examples:** `ssh.login.*`, `privilege.sudo.command`, `rdp.login.*`, `winrm.session.started`, `smb.admin_share.access`, `agent.heartbeat`, `agent.inventory`, `report.daily.*` — [full mapping](docs/agent-integration.md#3-маппинг-уведомлений--типы-событий).

## Platform features

- Roles `admin` / `monitor`, user management in UI, JWT validated against DB
- Events, hosts, problems, dashboard, reports, live SSE
- Notifications: Telegram, email, webhook; problem rules and cooldowns
- SPA hardening, admin-only `DELETE /hosts`, login rate limit, DOMPurify for `report_html`
- Custom error pages: `401` / `403` / `404` / `429`
- Sidebar system stats (CPU, RAM, disk, DB latency)

## Documentation

| Document | Description |
|----------|-------------|
| [docs/TZ.md](docs/TZ.md) | Technical specification (Russian) |
| [docs/architecture.md](docs/architecture.md) | Architecture |
| [docs/agent-integration.md](docs/agent-integration.md) | Agent integration (`UseSAC` modes) |
| [docs/event-schema-v1.json](docs/event-schema-v1.json) | Event JSON Schema v1 |
| [docs/install-ubuntu-24.04-native.md](docs/install-ubuntu-24.04-native.md) | **Ubuntu 24.04 native install** |
| [docs/install-ubuntu-24.04-docker.md](docs/install-ubuntu-24.04-docker.md) | Docker alternative |
| [docs/deployment.md](docs/deployment.md) | Deployment and operations |
| [docs/ssl-certificate.md](docs/ssl-certificate.md) | TLS certificate setup |
| [docs/runbook-ops.md](docs/runbook-ops.md) | Operations runbook |

## Quick start (native)

```bash
git clone https://github.com/PTah/security-alert-center.git /opt/security-alert-center
# deploy/env.native.example -> config/sac-api.env
cd /opt/security-alert-center/backend
python3 -m venv .venv && .venv/bin/pip install -r requirements.txt
.venv/bin/alembic upgrade head
```

Full guide: [docs/install-ubuntu-24.04-native.md](docs/install-ubuntu-24.04-native.md)

## Target platform

- **SAC server:** Ubuntu 24.04 LTS
- **Agents:** ssh-monitor (Linux), RDP-login-monitor (Windows)

## GitHub topics

`security-monitoring`, `siem`, `incident-response`, `fastapi`, `vue`, `postgresql`, `telegram-bot`, `webhook`, `jwt`, `rbac`, `self-hosted`

## License

MIT — see [LICENSE](LICENSE).  
Copyright (c) 2026 Andrey "PapaTramp" Lutsenko.