CSEC_PUBLIC/securityonion
1
0
Fork 0
mirror of https://github.com/Security-Onion-Solutions/securityonion.git synced 2025-12-06 17:22:49 +01:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #1150 from Security-Onion-Solutions/feature/playbook-fixes

Browse Source 
Simplify elastalert rules
This commit is contained in:
Josh Brower
2020-08-06 15:45:06 -04:00
committed by GitHub
parent 31fd0b6407 ddd099233a
commit c3da302353
4 changed files with 7 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
salt/elastalert/files/elastalert_config.yaml
View File

@@ -21,7 +21,7 @@ run_every:
# ElastAlert will buffer results from the most recent # ElastAlert will buffer results from the most recent
# period of time, in case some log sources are not in real time # period of time, in case some log sources are not in real time
buffer_time: buffer_time:
minutes: 1 minutes: 5
# The maximum time between queries for ElastAlert to start at the most recently # The maximum time between queries for ElastAlert to start at the most recently
# run query. When ElastAlert starts, for each rule, it will search elastalert_metadata # run query. When ElastAlert starts, for each rule, it will search elastalert_metadata
@@ -38,7 +38,7 @@ es_host: {{ esip }}
es_port: {{ esport }} es_port: {{ esport }}
# Sets timeout for connecting to and reading from es_host # Sets timeout for connecting to and reading from es_host
es_conn_timeout: 60 es_conn_timeout: 55
# The maximum number of documents that will be downloaded from Elasticsearch in # The maximum number of documents that will be downloaded from Elasticsearch in
# a single query. The default is 10,000, and if you expect to get near this number, # a single query. The default is 10,000, and if you expect to get near this number,

2
salt/elastalert/files/modules/so/playbook-es.py
View File

@@ -16,7 +16,7 @@ class PlaybookESAlerter(Alerter):
today = strftime("%Y.%m.%d", gmtime()) today = strftime("%Y.%m.%d", gmtime())
timestamp = strftime("%Y-%m-%d"'T'"%H:%M:%S", gmtime()) timestamp = strftime("%Y-%m-%d"'T'"%H:%M:%S", gmtime())
headers = {"Content-Type": "application/json"} headers = {"Content-Type": "application/json"}
payload = {"rule.name": self.rule['play_title'],"event.severity": self.rule['event.severity'],"kibana_pivot": self.rule['kibana_pivot'],"soc_pivot": self.rule['soc_pivot'],"event.module": self.rule['event.module'],"event.dataset": self.rule['event.dataset'],"play_url": self.rule['play_url'],"sigma_level": self.rule['sigma_level'],"rule.category": self.rule['rule.category'],"data": match, "@timestamp": timestamp} payload = {"rule.name": self.rule['play_title'],"event.severity": self.rule['event.severity'],"kibana_pivot": self.rule['kibana_pivot'],"soc_pivot": self.rule['soc_pivot'],"event.module": self.rule['event.module'],"event.dataset": self.rule['event.dataset'],"play_url": self.rule['play_url'],"sigma_level": self.rule['sigma_level'],"rule.category": self.rule['rule.category'],"alert_data": match, "@timestamp": timestamp}
url = f"http://{self.rule['elasticsearch_host']}/so-playbook-alerts-{today}/_doc/" url = f"http://{self.rule['elasticsearch_host']}/so-playbook-alerts-{today}/_doc/"
requests.post(url, data=json.dumps(payload), headers=headers, verify=False) requests.post(url, data=json.dumps(payload), headers=headers, verify=False)

8
salt/elastalert/files/rules/so/suricata_thehive.yaml
View File

@@ -8,14 +8,10 @@
es_host: {{es}} es_host: {{es}}
es_port: 9200 es_port: 9200
name: Suricata-Alert name: Suricata-Alert
type: frequency type: any
index: "*:so-ids-*" index: "*:so-ids-*"
num_events: 1
timeframe:
minutes: 10
buffer_time: buffer_time:
minutes: 10 minutes: 5
allow_buffer_time_overlap: true
query_key: ["rule.uuid","source.ip","destination.ip"] query_key: ["rule.uuid","source.ip","destination.ip"]
realert: realert:
days: 1 days: 1

8
salt/elastalert/files/rules/so/wazuh_thehive.yaml
View File

@@ -8,14 +8,10 @@
es_host: {{es}} es_host: {{es}}
es_port: 9200 es_port: 9200
name: Wazuh-Alert name: Wazuh-Alert
type: frequency type: any
index: "*:so-ossec-*" index: "*:so-ossec-*"
num_events: 1
timeframe:
minutes: 10
buffer_time: buffer_time:
minutes: 10 minutes: 5
allow_buffer_time_overlap: true
realert: realert:
days: 1 days: 1
filter: filter: