Analytic rule catalog
CYFIRMA - Medium severity Malicious Phishing Network Indicators - Monitor Recommended Rule
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| Id | 1b9603dd-4787-403e-8a35-387c554bd15b |
| Rulename | CYFIRMA - Medium severity Malicious Phishing Network Indicators - Monitor Recommended Rule |
| Description | “This analytics rule identifies network-based indicators such as URLs, IP addresses, and domains related to phishing campaigns, as reported by CYFIRMA threat intelligence. These indicators are flagged with a recommended action to block and are categorized under the ‘Phishing’ role. Such infrastructure is often used to deliver phishing emails, host fake login portals, or redirect victims to credential-harvesting pages. monitoring these indicators proactively helps prevent user compromise and data theft.” |
| Severity | Medium |
| Tactics | InitialAccess Execution CredentialAccess Exfiltration |
| Techniques | T1566 T1204 T1556 T1110 T1041 T1566.001 T1566.002 T1204.001 T1556.002 T1110.003 |
| Required data connectors | CyfirmaCyberIntelligenceDC |
| Kind | Scheduled |
| Query frequency | 5m |
| Query period | 5m |
| Trigger threshold | 0 |
| Trigger operator | GreaterThan |
| Source Uri | https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyfirma%20Cyber%20Intelligence/Analytic%20Rules/PhishingNetworkIndicatorsMonitorMediumSeverityRule.yaml |
| Version | 1.0.1 |
| Arm template | 1b9603dd-4787-403e-8a35-387c554bd15b.json |
//Phishing Network Indicators - Monitor Recommended
let timeFrame= 5m;
CyfirmaIndicators_CL
| where (ConfidenceScore < 80 and ConfidenceScore >= 50)
and TimeGenerated between (ago(timeFrame) .. now())
and pattern !contains 'file:hashes' and RecommendedActions has 'Monitor' and Roles has 'Phishing'
| extend IPv4 = extract(@"ipv4-addr:value\s*=\s*'([^']+)'", 1, pattern)
| extend IPv6 = extract(@"ipv6-addr:value\s*=\s*'([^']+)'", 1, pattern)
| extend URL = extract(@"url:value\s*=\s*'([^']+)'", 1, pattern)
| extend Domain = extract(@"domain-name:value\s*=\s*'([^']+)'", 1, pattern)
| extend parsed = parse_json(extensions)
| extend extensionKeys = bag_keys(parsed)
| mv-expand extensionKeys
| extend extensionKeyStr = tostring(extensionKeys)
| extend ext = parsed[extensionKeyStr]
| extend props = ext.properties
| extend
extension_id = extensionKeyStr,
ASN_Owner = props.asn_owner,
ASN = props.asn,
ProviderName = 'CYFIRMA',
ProductName = 'DeCYFIR/DeTCT'
| project
IPv4,
IPv6,
URL,
Domain,
ThreatActors,
RecommendedActions,
Sources,
Roles,
Country,
IPAbuse,
name,
Description,
ConfidenceScore,
IndicatorID,
created,
modified,
valid_from,
Tags,
ThreatType,
TimeGenerated,
SecurityVendors,
ProductName,
ProviderName
incidentConfiguration:
groupingConfiguration:
matchingMethod: AllEntities
enabled: false
lookbackDuration: PT5H
reopenClosedIncident: false
createIncident: true
triggerOperator: GreaterThan
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyfirma%20Cyber%20Intelligence/Analytic%20Rules/PhishingNetworkIndicatorsMonitorMediumSeverityRule.yaml
triggerThreshold: 0
query: |
//Phishing Network Indicators - Monitor Recommended
let timeFrame= 5m;
CyfirmaIndicators_CL
| where (ConfidenceScore < 80 and ConfidenceScore >= 50)
and TimeGenerated between (ago(timeFrame) .. now())
and pattern !contains 'file:hashes' and RecommendedActions has 'Monitor' and Roles has 'Phishing'
| extend IPv4 = extract(@"ipv4-addr:value\s*=\s*'([^']+)'", 1, pattern)
| extend IPv6 = extract(@"ipv6-addr:value\s*=\s*'([^']+)'", 1, pattern)
| extend URL = extract(@"url:value\s*=\s*'([^']+)'", 1, pattern)
| extend Domain = extract(@"domain-name:value\s*=\s*'([^']+)'", 1, pattern)
| extend parsed = parse_json(extensions)
| extend extensionKeys = bag_keys(parsed)
| mv-expand extensionKeys
| extend extensionKeyStr = tostring(extensionKeys)
| extend ext = parsed[extensionKeyStr]
| extend props = ext.properties
| extend
extension_id = extensionKeyStr,
ASN_Owner = props.asn_owner,
ASN = props.asn,
ProviderName = 'CYFIRMA',
ProductName = 'DeCYFIR/DeTCT'
| project
IPv4,
IPv6,
URL,
Domain,
ThreatActors,
RecommendedActions,
Sources,
Roles,
Country,
IPAbuse,
name,
Description,
ConfidenceScore,
IndicatorID,
created,
modified,
valid_from,
Tags,
ThreatType,
TimeGenerated,
SecurityVendors,
ProductName,
ProviderName
suppressionEnabled: true
kind: Scheduled
queryPeriod: 5m
eventGroupingSettings:
aggregationKind: AlertPerResult
tactics:
- InitialAccess
- Execution
- CredentialAccess
- Exfiltration
id: 1b9603dd-4787-403e-8a35-387c554bd15b
queryFrequency: 5m
alertDetailsOverride:
alertDescriptionFormat: '{{Description}} - {{name}} '
alertDisplayNameFormat: 'High-Confidence Malicious Phishing Network Indicators - Monitor Recommended - {{name}} '
alertDynamicProperties:
- alertProperty: ProductName
value: ProductName
- alertProperty: ProviderName
value: ProviderName
severity: Medium
enabled: false
name: CYFIRMA - Medium severity Malicious Phishing Network Indicators - Monitor Recommended Rule
requiredDataConnectors:
- connectorId: CyfirmaCyberIntelligenceDC
dataTypes:
- CyfirmaIndicators_CL
version: 1.0.1
relevantTechniques:
- T1566
- T1204
- T1556
- T1110
- T1041
- T1566.001
- T1566.002
- T1204.001
- T1556.002
- T1110.003
entityMappings:
- entityType: IP
fieldMappings:
- identifier: Address
columnName: IPv4
- entityType: IP
fieldMappings:
- identifier: Address
columnName: IPv6
- entityType: DNS
fieldMappings:
- identifier: DomainName
columnName: Domain
- entityType: URL
fieldMappings:
- identifier: Url
columnName: URL
suppressionDuration: 5m
description: |
"This analytics rule identifies network-based indicators such as URLs, IP addresses, and domains related to phishing campaigns, as reported by CYFIRMA threat intelligence.
These indicators are flagged with a recommended action to block and are categorized under the 'Phishing' role.
Such infrastructure is often used to deliver phishing emails, host fake login portals, or redirect victims to credential-harvesting pages.
monitoring these indicators proactively helps prevent user compromise and data theft."
customDetails:
Country: Country
IPAbuse: IPAbuse
TimeGenerated: TimeGenerated
ThreatType: ThreatType
Created: created
Sources: Sources
ValidFrom: valid_from
ConfidenceScore: ConfidenceScore
RecommendedActions: RecommendedActions
Tags: Tags
Roles: Roles
IndicatorID: IndicatorID
Modified: modified
Description: Description
SecurityVendors: SecurityVendors
ThreatActors: ThreatActors
{
"$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/1b9603dd-4787-403e-8a35-387c554bd15b')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/1b9603dd-4787-403e-8a35-387c554bd15b')]",
"properties": {
"alertDetailsOverride": {
"alertDescriptionFormat": "{{Description}} - {{name}} ",
"alertDisplayNameFormat": "High-Confidence Malicious Phishing Network Indicators - Monitor Recommended - {{name}} ",
"alertDynamicProperties": [
{
"alertProperty": "ProductName",
"value": "ProductName"
},
{
"alertProperty": "ProviderName",
"value": "ProviderName"
}
]
},
"alertRuleTemplateName": "1b9603dd-4787-403e-8a35-387c554bd15b",
"customDetails": {
"ConfidenceScore": "ConfidenceScore",
"Country": "Country",
"Created": "created",
"Description": "Description",
"IndicatorID": "IndicatorID",
"IPAbuse": "IPAbuse",
"Modified": "modified",
"RecommendedActions": "RecommendedActions",
"Roles": "Roles",
"SecurityVendors": "SecurityVendors",
"Sources": "Sources",
"Tags": "Tags",
"ThreatActors": "ThreatActors",
"ThreatType": "ThreatType",
"TimeGenerated": "TimeGenerated",
"ValidFrom": "valid_from"
},
"description": "\"This analytics rule identifies network-based indicators such as URLs, IP addresses, and domains related to phishing campaigns, as reported by CYFIRMA threat intelligence. \nThese indicators are flagged with a recommended action to block and are categorized under the 'Phishing' role.\nSuch infrastructure is often used to deliver phishing emails, host fake login portals, or redirect victims to credential-harvesting pages. \nmonitoring these indicators proactively helps prevent user compromise and data theft.\"\n",
"displayName": "CYFIRMA - Medium severity Malicious Phishing Network Indicators - Monitor Recommended Rule",
"enabled": false,
"entityMappings": [
{
"entityType": "IP",
"fieldMappings": [
{
"columnName": "IPv4",
"identifier": "Address"
}
]
},
{
"entityType": "IP",
"fieldMappings": [
{
"columnName": "IPv6",
"identifier": "Address"
}
]
},
{
"entityType": "DNS",
"fieldMappings": [
{
"columnName": "Domain",
"identifier": "DomainName"
}
]
},
{
"entityType": "URL",
"fieldMappings": [
{
"columnName": "URL",
"identifier": "Url"
}
]
}
],
"eventGroupingSettings": {
"aggregationKind": "AlertPerResult"
},
"incidentConfiguration": {
"createIncident": true,
"groupingConfiguration": {
"enabled": false,
"lookbackDuration": "PT5H",
"matchingMethod": "AllEntities",
"reopenClosedIncident": false
}
},
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyfirma%20Cyber%20Intelligence/Analytic%20Rules/PhishingNetworkIndicatorsMonitorMediumSeverityRule.yaml",
"query": "//Phishing Network Indicators - Monitor Recommended\nlet timeFrame= 5m;\nCyfirmaIndicators_CL \n| where (ConfidenceScore < 80 and ConfidenceScore >= 50)\n and TimeGenerated between (ago(timeFrame) .. now())\n and pattern !contains 'file:hashes' and RecommendedActions has 'Monitor' and Roles has 'Phishing'\n| extend IPv4 = extract(@\"ipv4-addr:value\\s*=\\s*'([^']+)'\", 1, pattern)\n| extend IPv6 = extract(@\"ipv6-addr:value\\s*=\\s*'([^']+)'\", 1, pattern)\n| extend URL = extract(@\"url:value\\s*=\\s*'([^']+)'\", 1, pattern)\n| extend Domain = extract(@\"domain-name:value\\s*=\\s*'([^']+)'\", 1, pattern)\n| extend parsed = parse_json(extensions)\n| extend extensionKeys = bag_keys(parsed)\n| mv-expand extensionKeys\n| extend extensionKeyStr = tostring(extensionKeys)\n| extend ext = parsed[extensionKeyStr]\n| extend props = ext.properties\n| extend \n extension_id = extensionKeyStr,\n ASN_Owner = props.asn_owner,\n ASN = props.asn,\n ProviderName = 'CYFIRMA',\n ProductName = 'DeCYFIR/DeTCT'\n| project\n IPv4,\n IPv6,\n URL,\n Domain,\n ThreatActors,\n RecommendedActions,\n Sources,\n Roles,\n Country,\n IPAbuse,\n name,\n Description,\n ConfidenceScore,\n IndicatorID,\n created,\n modified,\n valid_from,\n Tags,\n ThreatType,\n TimeGenerated,\n SecurityVendors,\n ProductName,\n ProviderName\n",
"queryFrequency": "PT5M",
"queryPeriod": "PT5M",
"severity": "Medium",
"subTechniques": [
"T1566.001",
"T1566.002",
"T1204.001",
"T1556.002",
"T1110.003"
],
"suppressionDuration": "PT5M",
"suppressionEnabled": true,
"tactics": [
"CredentialAccess",
"Execution",
"Exfiltration",
"InitialAccess"
],
"techniques": [
"T1041",
"T1110",
"T1204",
"T1556",
"T1566"
],
"templateVersion": "1.0.1",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}