Cisco ASA - threat detection message fired
Id | 795edf2d-cf3e-45b5-8452-fe6c9e6a582e |
Rulename | Cisco ASA - threat detection message fired |
Description | Identifies when the Cisco ASA Threat Detection engine fired an alert based on malicious activity occurring on the network inicated by DeviceEventClassID 733101-733105 Resources: https://www.cisco.com/c/en/us/td/docs/security/asa/syslog/b_syslog/syslogs9.html Details on how to further troubleshoot/investigate: https://www.cisco.com/c/en/us/support/docs/security/asa-5500-x-series-next-generation-firewalls/113685-asa-threat-detection.html |
Severity | Medium |
Tactics | Discovery Impact |
Techniques | T1046 T1498 |
Required data connectors | CiscoASA |
Kind | Scheduled |
Query frequency | 1h |
Query period | 1h |
Trigger threshold | 0 |
Trigger operator | gt |
Source Uri | https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CiscoASA/Analytic Rules/CiscoASA-ThreatDetectionMessage.yaml |
Version | 1.0.1 |
Arm template | 795edf2d-cf3e-45b5-8452-fe6c9e6a582e.json |
CommonSecurityLog
| where isempty(CommunicationDirection)
| where DeviceEventClassID in ("733101","733102","733103","733104","733105")
| extend timestamp = TimeGenerated, IPCustomEntity = SourceIP, HostCustomEntity = DeviceName
severity: Medium
name: Cisco ASA - threat detection message fired
requiredDataConnectors:
- dataTypes:
- CommonSecurityLog
connectorId: CiscoASA
id: 795edf2d-cf3e-45b5-8452-fe6c9e6a582e
tactics:
- Discovery
- Impact
queryFrequency: 1h
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CiscoASA/Analytic Rules/CiscoASA-ThreatDetectionMessage.yaml
description: |
'Identifies when the Cisco ASA Threat Detection engine fired an alert based on malicious activity occurring on the network inicated by DeviceEventClassID 733101-733105
Resources: https://www.cisco.com/c/en/us/td/docs/security/asa/syslog/b_syslog/syslogs9.html
Details on how to further troubleshoot/investigate: https://www.cisco.com/c/en/us/support/docs/security/asa-5500-x-series-next-generation-firewalls/113685-asa-threat-detection.html'
triggerThreshold: 0
kind: Scheduled
relevantTechniques:
- T1046
- T1498
query: |
CommonSecurityLog
| where isempty(CommunicationDirection)
| where DeviceEventClassID in ("733101","733102","733103","733104","733105")
| extend timestamp = TimeGenerated, IPCustomEntity = SourceIP, HostCustomEntity = DeviceName
entityMappings:
- entityType: Host
fieldMappings:
- columnName: HostCustomEntity
identifier: FullName
- entityType: IP
fieldMappings:
- columnName: IPCustomEntity
identifier: Address
status: Available
version: 1.0.1
queryPeriod: 1h
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"workspace": {
"type": "String"
}
},
"resources": [
{
"id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/795edf2d-cf3e-45b5-8452-fe6c9e6a582e')]",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/795edf2d-cf3e-45b5-8452-fe6c9e6a582e')]",
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
"kind": "Scheduled",
"apiVersion": "2022-11-01-preview",
"properties": {
"displayName": "Cisco ASA - threat detection message fired",
"description": "'Identifies when the Cisco ASA Threat Detection engine fired an alert based on malicious activity occurring on the network inicated by DeviceEventClassID 733101-733105\nResources: https://www.cisco.com/c/en/us/td/docs/security/asa/syslog/b_syslog/syslogs9.html\nDetails on how to further troubleshoot/investigate: https://www.cisco.com/c/en/us/support/docs/security/asa-5500-x-series-next-generation-firewalls/113685-asa-threat-detection.html'\n",
"severity": "Medium",
"enabled": true,
"query": "CommonSecurityLog\n| where isempty(CommunicationDirection)\n| where DeviceEventClassID in (\"733101\",\"733102\",\"733103\",\"733104\",\"733105\")\n| extend timestamp = TimeGenerated, IPCustomEntity = SourceIP, HostCustomEntity = DeviceName\n",
"queryFrequency": "PT1H",
"queryPeriod": "PT1H",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0,
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"Discovery",
"Impact"
],
"techniques": [
"T1046",
"T1498"
],
"alertRuleTemplateName": "795edf2d-cf3e-45b5-8452-fe6c9e6a582e",
"customDetails": null,
"entityMappings": [
{
"fieldMappings": [
{
"identifier": "FullName",
"columnName": "HostCustomEntity"
}
],
"entityType": "Host"
},
{
"fieldMappings": [
{
"identifier": "Address",
"columnName": "IPCustomEntity"
}
],
"entityType": "IP"
}
],
"status": "Available",
"templateVersion": "1.0.1",
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CiscoASA/Analytic Rules/CiscoASA-ThreatDetectionMessage.yaml"
}
}
]
}