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# Rule name, must be unique
name: SSH abuse - reapeat offender
# Alert on x events in y seconds
type: frequency
# Alert when this many documents matching the query occur within a timeframe
num_events: 2
# num_events must occur within this amount of time to trigger an alert
timeframe:
weeks: 1
# A list of elasticsearch filters used for find events
# These filters are joined with AND and nested in a filtered query
# For more info: http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl.html
filter:
- term:
rule_name: "SSH abuse"
index: elastalert
# When the attacker continues, send a new alert after x minutes
realert:
weeks: 4
query_key:
- match_body.source.ip
include:
- match_body.host.hostname
- match_body.user.name
- match_body.source.ip
alert_subject: "SSH abuse (repeat offender) on <{}> | <{}|Show Dashboard>"
alert_subject_args:
- match_body.host.hostname
- kibana_link
alert_text: |-
An reapeat offender has been active on {}.
IP: {}
User: {}
alert_text_args:
- match_body.host.hostname
- match_body.user.name
- match_body.source.ip
# The alert is use when a match is found
alert:
- slack
slack_webhook_url: "https://hooks.slack.com/services/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"
slack_username_override: "ElastAlert"
# Alert body only cointains a title and text
alert_text_type: alert_text_only
# Link to BitSensor Kibana Dashboard
use_kibana4_dashboard: "https://dev.securely.ai/app/kibana#/dashboard/37739d80-a95c-11e9-b5ba-33a34ca252fb"
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