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TacitRed - Repeat Compromise Detection

Description

Detects users who have been compromised multiple times within a 7-day window. This may indicate a persistent threat or inadequate remediation. Ref: https://data443.com/tacitred-attack-surface-intelligence/

Rule type: Scheduled
Version: 1.0.1
Query frequency: 1h
Query period: 7d
Trigger: GreaterThan 0

Declared MITRE coverage

Declared sources

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

Connectors

TacitRedThreatIntel

Data types

TacitRed_Findings_CL

KQL query

Original query, unchanged.

let lookback = 7d;
TacitRed_Findings_CL
| where TimeGenerated >= ago(lookback)
| summarize
    CompromiseCount = count(),
    FirstSeen = min(TimeGenerated),
    LastSeen = max(TimeGenerated),
    Sources = make_set(source_s),
    AvgConfidence = avg(confidence_d)
  by email_s, domain_s
| where CompromiseCount > 1
| extend
    Email = tostring(email_s),
    Domain = tostring(domain_s)
| project
    Email,
    Domain,
    CompromiseCount,
    FirstSeen,
    LastSeen,
    Sources,
    AvgConfidence

Declared entities

AccountDNS

Source provenance

GitHub

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

File: Solutions/TacitRedThreatIntelligence/Analytic Rules/TacitRed - Repeat Compromise Detection.yaml ↗
Commit: 9800e51 ↗
Source identifier: a1b2c3d4-e5f6-7890-abcd-ef1234567890

Additional source files 2

Solutions/TacitRedThreatIntelligence/Analytic Rules/TacitRed - Repeat Compromise Detection.yamlsource ↗Solutions/TacitRedThreatIntelligence/Data/Solution_TacitRed.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.