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FEATURE: SNI beacons for RITA (#11965) #11966

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FEATURE: SNI beacons for RITA (#11965) #11966

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d5d2b5f
Merge pull request #11879 from Security-Onion-Solutions/dev
TOoSmOotH Nov 28, 2023
94967c8
[RITA] Added SNI beacon config files
maxwets Dec 7, 2023
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94 changes: 94 additions & 0 deletions salt/elasticsearch/files/ingest/rita.snibeacon
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Original file line number Diff line number Diff line change
@@ -0,0 +1,94 @@
{
"description": "RITA SNI Beacons",
"processors": [
{
"set": {
"field": "_index",
"value": "so-rita",
"override": true
}
},
{
Score,Source IP,SNI,Connections,Avg. Bytes,Total Bytes,TS Score,DS Score,Dur Score,Hist Score,Top Intvl

"csv": {
"field": "message",
"target_fields": [
"beacon.score",
"source.ip",
"ssl.server_name",
"network.connections",
"network.average_bytes",
"network.bytes",
"beacon.ts_score",
"beacon.ds_score",
"beacon.duration_score",
"beacon.historical_score",
"beacon.interval.top"
]
}
},
{
"convert": {
"field": "beacon.ds_score",
"type": "float"
}
},
{
"convert": {
"field": "beacon.duration_score",
"type": "float"
}
},
{
"convert": {
"field": "beacon.historical_score",
"type": "float"
}
},
{
"convert": {
"field": "beacon.score",
"type": "float"
}
},
{
"convert": {
"field": "beacon.ts_score",
"type": "float"
}
},
{
"convert": {
"field": "network.average_bytes",
"type": "float"
}
},
{
"convert": {
"field": "network.connections",
"type": "integer"
}
},
{
"convert": {
"field": "beacon.interval.top",
"type": "integer"
}
},
{
"convert": {
"field": "network.bytes",
"type": "integer"
}
},
{ "set": { "if": "ctx.beacon?.score == 1", "field": "dataset", "value": "alert", "override": true }},
{ "set": { "if": "ctx.beacon?.score == 1", "field": "rule.name", "value": "Potential C2 Beacon Activity", "override": true }},
{ "set": { "if": "ctx.beacon?.score == 1", "field": "event.severity", "value": 3, "override": true }},
{
"pipeline": {
"name": "common"
}
}
]
}
16 changes: 16 additions & 0 deletions salt/filebeat/etc/filebeat.yml
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Expand Up @@ -301,6 +301,22 @@ filebeat.inputs:
pipeline: "rita.beacon"
index: "so-rita"

- type: filestream
id: rita-beacon-sni
paths:
- /nsm/rita/beacons-sni.csv
exclude_lines: ['^Score', '^Source', '^Domain', '^No results']
fields:
module: rita
dataset: beacon
category: network
processors:
- drop_fields:
fields: ["source", "prospector", "input", "offset", "beat"]
fields_under_root: true
pipeline: "rita.snibeacon"
index: "so-rita"

- type: filestream
id: rita-connection
paths:
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