NET HEALER

NET HEALER receive DDoS Attack reports from FastNetMon collectors allowing custom triggers on a per stage based actions.
Allows integration with non gaussian algorithms for anomaly detection.
Provides a RESTful like API

STAGES

• clear - no Attack Reports received for any /32 target
• warning - less or equal to 2 Attack Reports received for /32 target(s)
• critical - more than 2 Attack Reports received for /32 target(s)
• under_attack - FastNetMon + anomaly detected

Each 1 FNM /32 ban = 1 NET HEALER Attack Report
Lower the FNM ban time, faster NET HEALER will advance in stages (thresholds can be customized)
Start with FNM ban time: 45 seconds (NET HEALER will converge from cleared to warning after 90 seconds)

ACTIONS

• Grafana vertical bars markdown including stage/target(s)
• Email
• Pagerduty
• Flowdock chat messages
• BGP announces (BIRD + kernel blackhole tables)

Requirements

• FastNetMon: a super cool tool written by Pavel Odintsov - https://github.com/pavel-odintsov/fastnetmon
• Redis (https://github.com/antirez/redis)

Nice to have

• InfluxDB (https://github.com/influxdb/influxdb)
• Grafana (https://github.com/grafana/grafana)
• Morgoth (https://github.com/nathanielc/morgoth)

##Installation 0. FastNetMon (FNM) should be configured to use:

• Redis (https://github.com/FastVPSEestiOu/fastnetmon/blob/master/docs/REDIS.md)
• InfluxDB (https://github.com/FastVPSEestiOu/fastnetmon/blob/master/docs/INFLUXDB_INTEGRATION.md)
• Add to /usr/local/bin/notify_about_attack.sh under if [ "$4" == "attack_details" ]; then
  curl -sk https://{nethealer_ip:port}/healer/v1/ddos/pool
  curl -sk https://{nethealer_ip:port}/healer/v1/ddos/actions

1. install ruby (https://www.ruby-lang.org/en/documentation/installation/)
2. $ gem install bundler
3. $ bundle install
4. $ bundle exec script/bootstrap
5. Populate .env with a config
6. $ bundle exec script/start

Screenshot during an attack

##How to query the API

GET /healer/v1/ddos/status

{
  "status": "clear",
  "timestamp": "20150913-115403"
}

GET /healer/v1/ddos/reports

{
    "reports": {
        "200.200.200.10": {
            "fqdn": "nethealer.hostingxpto.com",
            "attack_type": "udp_flood",
            "alerts": 2,
            "protocol": [
                "udp"
            ],
            "incoming": {
                "total": {
                    "mbps": 2894.96,
                    "pps": 781380,
                    "flows": 628
                },
                "tcp": {
                    "mbps": 1.71,
                    "pps": 2654,
                    "syn": {
                        "mbps": 0.08,
                        "pps": 109
                    }
                },
                "udp": {
                    "mbps": 2761,
                    "pps": 779884
                },
                "icmp": {
                    "mbps": 0,
                    "pps": 0
                }
            }
        }
    }
}

### GET /healer/v1/ddos/brief 
=> query /32 targets + amount of current Attack Reports
```json
{
  "reports": {
    "200.200.200.10": 3,
  },
  "timestamp": "20150913-030255"
}

WORK IN PROGRESS

=> PRs are more than welcome !

Need help ?

send me an email [email protected]