Contrast Exploits

Back


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

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

ARM