Imperva - Possible command injection

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Id	6214f187-5840-4cf7-a174-0cf9a72bfd29
Rulename	Imperva - Possible command injection
Description	Detects requests with commands in URI.
Severity	High
Tactics	InitialAccess
Techniques	T1190 T1133
Required data connectors	ImpervaWAFCloudAPI
Kind	Scheduled
Query frequency	10m
Query period	10m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/ImpervaCloudWAF/Analytic Rules/ImpervaCommandInUri.yaml
Version	1.0.1
Arm template	6214f187-5840-4cf7-a174-0cf9a72bfd29.json

KQL

let cmd_lst = dynamic(['%2fetc%2fpasswd', '%2fetc%2fshadow', 'ping', 'whoami', 'phpinfo', '%2fbin%2fbash', 'curl', 'exec(', 'wget', 'python', 'gcc' , 'uname', 'systeminfo', 'rout', 'hostname', 'ifconfig']);
ImpervaWAFCloud
| where QueryString has_any (cmd_lst)
| extend IPCustomEntity = SrcIpAddr

YAML

description: |
    'Detects requests with commands in URI.'
version: 1.0.1
triggerThreshold: 0
tactics:
- InitialAccess
queryPeriod: 10m
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/ImpervaCloudWAF/Analytic Rules/ImpervaCommandInUri.yaml
triggerOperator: gt
status: Available
id: 6214f187-5840-4cf7-a174-0cf9a72bfd29
name: Imperva - Possible command injection
queryFrequency: 10m
severity: High
kind: Scheduled
entityMappings:
- fieldMappings:
  - columnName: IPCustomEntity
    identifier: Address
  entityType: IP
relevantTechniques:
- T1190
- T1133
query: |
  let cmd_lst = dynamic(['%2fetc%2fpasswd', '%2fetc%2fshadow', 'ping', 'whoami', 'phpinfo', '%2fbin%2fbash', 'curl', 'exec(', 'wget', 'python', 'gcc' , 'uname', 'systeminfo', 'rout', 'hostname', 'ifconfig']);
  ImpervaWAFCloud
  | where QueryString has_any (cmd_lst)
  | extend IPCustomEntity = SrcIpAddr  
requiredDataConnectors:
- dataTypes:
  - ImpervaWAFCloud
  connectorId: ImpervaWAFCloudAPI

ARM