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CYFIRMA - High severity TOR Node Network Indicators - Monitor Recommended Rule

Description

"This KQL query identifies network-based indicators from CYFIRMA intelligence that are associated with the role 'TOR'. These indicators may include IP addresses, domains, and URLs related to Tor network activity. Threat actors often use Tor for anonymous communication, command and control, data exfiltration, and evasion of network defenses."
Rule type
Scheduled
Version
1.0.1
Query frequency
5m
Query period
5m
Trigger
GreaterThan 0

Declared MITRE coverage

Declared sources

Metadata from the source file. No dependencies inferred from KQL.

Connectors

Data types

KQL query

Original query, unchanged.

//TOR Node Network Indicators - Monitor Recommended 
let timeFrame= 5m;
CyfirmaIndicators_CL 
| where ConfidenceScore >= 80
    and TimeGenerated between (ago(timeFrame) .. now())
    and pattern !contains 'file:hashes' and RecommendedActions has 'Monitor' and Roles has 'TOR'
| 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

Declared entities

IPDNSURL

Related content

Links established from declared identifiers and solution manifests.

Source provenance

GitHub

Displayed values come from files in Azure/Azure-Sentinel. They describe the published template, not your workspace configuration.

Source identifier
6f107cf8-02f9-4440-b5d8-1235293e5ad7
Additional source files 2Solutions/Cyfirma Cyber Intelligence/Analytic Rules/TORNodeNetworkIndicatorsMonitorHighSeverityRule.yamlsource ↗Solutions/Cyfirma Cyber Intelligence/Data/Solution_CyfirmaCyberIntel.jsonsolution-membership ↗
GSTEP / CATALOG TRACKING

Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC

GSTEP sync dates, separate from the source content’s publication dates.