Excessive Blocked Traffic Events Generated by User
Id | fa0ab69c-7124-4f62-acdd-61017cf6ce89 |
Rulename | Excessive Blocked Traffic Events Generated by User |
Description | Creates an incident when a Symantec Endpoint Proection agent detects excessive amounts of blocked traffic generated by a single user. |
Severity | Medium |
Tactics | Exfiltration CommandAndControl LateralMovement |
Techniques | T1041 T1132 T1001 T1021 |
Required data connectors | SymantecEndpointProtection SyslogAma |
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/Symantec Endpoint Protection/Analytic Rules/ExcessiveBlockedTrafficGeneratedbyUser.yaml |
Version | 1.0.1 |
Arm template | fa0ab69c-7124-4f62-acdd-61017cf6ce89.json |
let threshold = 15;
let NoteableEvents = SymantecEndpointProtection
| where LogType == "Agent Traffic Logs"
| where Action =~ "Blocked"
| summarize TotalBlockedEvents = count() by UserName
| where TotalBlockedEvents > threshold;
SymantecEndpointProtection
| where LogType =~ "Agent Traffic Logs"
| where Action =~ "Blocked"
| join kind=inner (NoteableEvents) on UserName
| summarize StartTimeUtc = min(TimeGenerated), EndTimeUtc = max(TimeGenerated), Total = count() by UserName, RuleName, ServerName, LocalHostIpAddr, LocalPortNumber, TrafficDirection, RemoteHostIpAddr, RemotePortNumber, ApplicationName
| extend timestamp = StartTimeUtc, AccountCustomEntity = UserName, HostCustomEntity = ServerName, IPCustomEntity = LocalHostIpAddr
kind: Scheduled
relevantTechniques:
- T1041
- T1132
- T1001
- T1021
description: |
'Creates an incident when a Symantec Endpoint Proection agent detects excessive amounts of blocked traffic generated by a single user.'
queryPeriod: 1h
queryFrequency: 1h
tactics:
- Exfiltration
- CommandAndControl
- LateralMovement
name: Excessive Blocked Traffic Events Generated by User
requiredDataConnectors:
- connectorId: SymantecEndpointProtection
dataTypes:
- Syslog
- connectorId: SyslogAma
datatypes:
- Syslog
entityMappings:
- entityType: Account
fieldMappings:
- identifier: FullName
columnName: AccountCustomEntity
- entityType: IP
fieldMappings:
- identifier: Address
columnName: IPCustomEntity
- entityType: Host
fieldMappings:
- identifier: FullName
columnName: HostCustomEntity
triggerThreshold: 0
version: 1.0.1
id: fa0ab69c-7124-4f62-acdd-61017cf6ce89
query: |
let threshold = 15;
let NoteableEvents = SymantecEndpointProtection
| where LogType == "Agent Traffic Logs"
| where Action =~ "Blocked"
| summarize TotalBlockedEvents = count() by UserName
| where TotalBlockedEvents > threshold;
SymantecEndpointProtection
| where LogType =~ "Agent Traffic Logs"
| where Action =~ "Blocked"
| join kind=inner (NoteableEvents) on UserName
| summarize StartTimeUtc = min(TimeGenerated), EndTimeUtc = max(TimeGenerated), Total = count() by UserName, RuleName, ServerName, LocalHostIpAddr, LocalPortNumber, TrafficDirection, RemoteHostIpAddr, RemotePortNumber, ApplicationName
| extend timestamp = StartTimeUtc, AccountCustomEntity = UserName, HostCustomEntity = ServerName, IPCustomEntity = LocalHostIpAddr
status: Available
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Symantec Endpoint Protection/Analytic Rules/ExcessiveBlockedTrafficGeneratedbyUser.yaml
severity: Medium
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"workspace": {
"type": "String"
}
},
"resources": [
{
"apiVersion": "2024-01-01-preview",
"id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/fa0ab69c-7124-4f62-acdd-61017cf6ce89')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/fa0ab69c-7124-4f62-acdd-61017cf6ce89')]",
"properties": {
"alertRuleTemplateName": "fa0ab69c-7124-4f62-acdd-61017cf6ce89",
"customDetails": null,
"description": "'Creates an incident when a Symantec Endpoint Proection agent detects excessive amounts of blocked traffic generated by a single user.'\n",
"displayName": "Excessive Blocked Traffic Events Generated by User",
"enabled": true,
"entityMappings": [
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "AccountCustomEntity",
"identifier": "FullName"
}
]
},
{
"entityType": "IP",
"fieldMappings": [
{
"columnName": "IPCustomEntity",
"identifier": "Address"
}
]
},
{
"entityType": "Host",
"fieldMappings": [
{
"columnName": "HostCustomEntity",
"identifier": "FullName"
}
]
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Symantec Endpoint Protection/Analytic Rules/ExcessiveBlockedTrafficGeneratedbyUser.yaml",
"query": "let threshold = 15;\nlet NoteableEvents = SymantecEndpointProtection\n| where LogType == \"Agent Traffic Logs\"\n| where Action =~ \"Blocked\"\n| summarize TotalBlockedEvents = count() by UserName\n| where TotalBlockedEvents > threshold;\nSymantecEndpointProtection\n| where LogType =~ \"Agent Traffic Logs\"\n| where Action =~ \"Blocked\"\n| join kind=inner (NoteableEvents) on UserName\n| summarize StartTimeUtc = min(TimeGenerated), EndTimeUtc = max(TimeGenerated), Total = count() by UserName, RuleName, ServerName, LocalHostIpAddr, LocalPortNumber, TrafficDirection, RemoteHostIpAddr, RemotePortNumber, ApplicationName\n| extend timestamp = StartTimeUtc, AccountCustomEntity = UserName, HostCustomEntity = ServerName, IPCustomEntity = LocalHostIpAddr\n",
"queryFrequency": "PT1H",
"queryPeriod": "PT1H",
"severity": "Medium",
"status": "Available",
"subTechniques": [],
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"CommandAndControl",
"Exfiltration",
"LateralMovement"
],
"techniques": [
"T1001",
"T1021",
"T1041",
"T1132"
],
"templateVersion": "1.0.1",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}