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

kind: Scheduled
tactics:
- InitialAccess
- Exfiltration
status: Available
triggerOperator: gt
version: 1.0.2
name: Contrast Exploits
queryFrequency: 5m
id: e1abb6ed-be18-40fd-be58-3d3d84041daf
requiredDataConnectors:
- connectorId: ContrastProtect
  dataTypes:
  - CommonSecurityLog
- connectorId: ContrastProtectAma
  dataTypes:
  - CommonSecurityLog
- connectorId: CefAma
  dataTypes:
  - CommonSecurityLog
relevantTechniques:
- T1566
description: |
    'Creates Incidents for Exploit events sourced from the Contrast Protect agent.'
customDetails:
  Agent: DeviceProduct
  Attack: Activity
  AgentVersion: DeviceVersion
  Details: AdditionalExtensions
  Application: ApplicationProtocol
entityMappings:
- entityType: IP
  fieldMappings:
  - columnName: SourceIP
    identifier: Address
- entityType: URL
  fieldMappings:
  - columnName: RequestURL
    identifier: Url
- entityType: CloudApplication
  fieldMappings:
  - columnName: ApplicationProtocol
    identifier: Name
- entityType: Malware
  fieldMappings:
  - columnName: Activity
    identifier: Name
  - columnName: Rule
    identifier: Category
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Contrast Protect/Analytic Rules/ContrastExploits.yaml
triggerThreshold: 0
queryPeriod: 5m
severity: High
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')

ARM