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SAST Auth Finding Correlated with Brute Force

Description

Detects applications with open SAST authentication findings that are simultaneously experiencing brute force login attempts in Azure AD. Correlates StratoSecure SAST findings with SigninLogs failure spikes.
Rule type
Scheduled
Version
1.0.0
Declared status
Available
Query frequency
1h
Query period
75m
Trigger
gt 0

Declared MITRE coverage

Declared sources

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

Connectors

Data types

KQL query

Original query, unchanged.

let lookback = 1h;
let bruteForceThreshold = 20;
let AuthFindings = StratoSecure_Findings_CL
    | where TimeGenerated >= ago(lookback)
    | where FixStatus =~ "open"
    | where Severity in ("Critical", "High")
    | where RuleId has_any ("auth", "jwt", "login", "session", "token", "password", "credential")
    | summarize FindingCount = count(), RuleIds = make_set(RuleId), Repos = make_set(Repository)
        by ApplicationId, StraTenantId;
let BruteForce = SigninLogs
    | where TimeGenerated >= ago(lookback)
    | where ResultType != "0"
    | summarize FailedAttempts = count(), DistinctUsers = dcount(UserPrincipalName),
        IPList = make_set(IPAddress, 20), FirstAttempt = min(TimeGenerated), LastAttempt = max(TimeGenerated)
        by AppId, AppDisplayName
    | where FailedAttempts >= bruteForceThreshold;
AuthFindings
    | join kind=inner BruteForce on $left.ApplicationId == $right.AppId
    | project TimeGenerated = LastAttempt, ApplicationId, AppDisplayName, StraTenantId,
        FindingCount, RuleIds, Repos, FailedAttempts, DistinctUsers, IPList

Declared entities

CloudApplication

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
4ae9f294-410d-4c11-9072-0d8fcf5162d8
Additional source files 2Solutions/StratoSecure/Analytic Rules/S1_SAST_Auth_BruteForce.yamlsource ↗Solutions/StratoSecure/Data/Solution_StratoSecure.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.