Contrast Exploits

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Id	e1abb6ed-be18-40fd-be58-3d3d84041daf
Rulename	Contrast Exploits
Description	Creates Incidents for Exploit events sourced from the Contrast Protect agent.
Severity	High
Tactics	InitialAccess Exfiltration
Techniques	T1566
Required data connectors	CefAma ContrastProtect ContrastProtectAma
Kind	Scheduled
Query frequency	5m
Query period	5m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Contrast Protect/Analytic Rules/ContrastExploits.yaml
Version	1.0.2
Arm template	e1abb6ed-be18-40fd-be58-3d3d84041daf.json

KQL

let extract_data=(a:string, k:string) {
  parse_urlquery(replace(@';', @'&', a))["Query Parameters"][k]
};

CommonSecurityLog 
| where DeviceVendor == "Contrast Security"
| where AdditionalExtensions contains "EXPLOITED"
| extend DeviceProduct
| extend SourceIP
| extend DeviceVersion
| extend Activity
| extend ApplicationProtocol
| extend RequestURL
| extend RequestMethod
| extend Rule = extract_data(AdditionalExtensions, 'pri')

YAML

status: Available
requiredDataConnectors:
- connectorId: ContrastProtect
  dataTypes:
  - CommonSecurityLog
- connectorId: ContrastProtectAma
  dataTypes:
  - CommonSecurityLog
- connectorId: CefAma
  dataTypes:
  - CommonSecurityLog
triggerThreshold: 0
kind: Scheduled
version: 1.0.2
entityMappings:
- entityType: IP
  fieldMappings:
  - identifier: Address
    columnName: SourceIP
- entityType: URL
  fieldMappings:
  - identifier: Url
    columnName: RequestURL
- entityType: CloudApplication
  fieldMappings:
  - identifier: Name
    columnName: ApplicationProtocol
- entityType: Malware
  fieldMappings:
  - identifier: Name
    columnName: Activity
  - identifier: Category
    columnName: Rule
relevantTechniques:
- T1566
name: Contrast Exploits
customDetails:
  Details: AdditionalExtensions
  Attack: Activity
  Agent: DeviceProduct
  AgentVersion: DeviceVersion
  Application: ApplicationProtocol
tactics:
- InitialAccess
- Exfiltration
triggerOperator: gt
description: |
    'Creates Incidents for Exploit events sourced from the Contrast Protect agent.'
queryPeriod: 5m
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Contrast Protect/Analytic Rules/ContrastExploits.yaml
query: |
  let extract_data=(a:string, k:string) {
    parse_urlquery(replace(@';', @'&', a))["Query Parameters"][k]
  };

  CommonSecurityLog 
  | where DeviceVendor == "Contrast Security"
  | where AdditionalExtensions contains "EXPLOITED"
  | extend DeviceProduct
  | extend SourceIP
  | extend DeviceVersion
  | extend Activity
  | extend ApplicationProtocol
  | extend RequestURL
  | extend RequestMethod
  | extend Rule = extract_data(AdditionalExtensions, 'pri')  
queryFrequency: 5m
severity: High
id: e1abb6ed-be18-40fd-be58-3d3d84041daf

ARM