Hi I am trying to get a watcher threshold alert set up. I would like to run the watch every 5 minutes, against the winlogbeat-* index. I would like the alert to trigger when there are 10 failed logon attempts in 1 minute. Here is what I have currently if someone could assist.
{
"trigger": {
"schedule": {
"interval": "5m"
}
},
"input": {
"search": {
"request": {
"search_type": "query_then_fetch",
"indices": [
"winlogbeat-*"
],
"rest_total_hits_as_int": true,
"body": {
"size": 0,
"query": {
"bool": {
"filter": {
"range": {
"@timestamp": {
"gte": "{{ctx.trigger.scheduled_time}}||-5m",
"lte": "{{ctx.trigger.scheduled_time}}",
"format": "strict_date_optional_time||epoch_millis"
}
}
}
}
},
"aggs": {
"bucketAgg": {
"terms": {
"field": "4625",
"size": 5,
"order": {
"_count": "desc"
}
}
}
}
}
}
}
},
"condition": {
"script": {
"source": "ArrayList arr = ctx.payload.aggregations.bucketAgg.buckets; for (int i = 0; i < arr.length; i++) { if (arr[i].doc_count > params.threshold) { return true; } } return false;",
"lang": "painless",
"params": {
"threshold": 10
}
}
},
"actions": {
"email_1": {
"email": {
"profile": "standard",
"to": [
"shrimp@bubbagump.net"
],
"subject": "Watch [{{ctx.metadata.name}}] has exceeded the threshold",
"body": {
"text": "Threshold Alert for any event code with over 10 events in 5 minutes"
}
}
}
},
"transform": {
"script": {
"source": "HashMap result = new HashMap(); ArrayList arr = ctx.payload.aggregations.bucketAgg.buckets; ArrayList filteredHits = new ArrayList(); for (int i = 0; i < arr.length; i++) { HashMap filteredHit = new HashMap(); filteredHit.key = arr[i].key; filteredHit.value = arr[i].doc_count; if (filteredHit.value > params.threshold) { filteredHits.add(filteredHit); } } result.results = filteredHits; return result;",
"lang": "painless",
"params": {
"threshold": 10
}
}
},
"metadata": {
"xpack": {
"type": "json"
},
"name": "failed_logon_test alert"
}
}