GitHub Exploit Metadata - Exploit Intel

PoC files

19 files

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Analysisdeepseek-v4-pro:cloud · 2026-08-07

Technical assessment

A Microsoft Sentinel analytics rule (KQL query) designed to detect a multi-stage attack chain involving Azure MCP Server managed identity abuse. It correlates MCP-related service principal sign-ins with subsequent privileged Azure operations (e.g., Key Vault access, role assignment modification) within a 30-minute window.

Backdoor review

No backdoor observed in reviewed code

The supplied evidence is a single JSON file defining a Microsoft Sentinel analytics rule for detecting post-exploitation activity related to CVE-2026-26118. The file contains only declarative KQL query logic and rule configuration; no executable code, obfuscation, or deceptive behavior is present.

ClassificationScanner

Model confidence95%

AuthenticationUnknown

LanguagesKQL

Target softwareMicrosoft SentinelAzure MCP ServerAzure Key VaultAzure Activity Logs

Attack typesdetectioncredential_accesspersistencedefense_evasion

Evidence & reasoningClassification basis · observed behavior · safety review

Technical evidence

Classification basis and observed behavior

Classification basis

The artifact is a Microsoft Sentinel scheduled analytics rule (JSON definition with an embedded KQL query) that detects post-exploitation activity. It does not contain any code to exploit a vulnerability; it only checks for indicators of compromise in log data.

j-dahl7-mcp-attack-detection-sentinel-a074553/analytics-rules/mcp-identity-post-exploitation.json:2-8

Requirements

Requires Microsoft Sentinel workspace with AADServicePrincipalSignInLogs and AzureActivity log data ingestion enabled.j-dahl7-mcp-attack-detection-sentinel-a074553/analytics-rules/mcp-identity-post-exploitation.json:8

Observed behavior

Defines a KQL query that joins AADServicePrincipalSignInLogs with AzureActivity logs to find successful privileged operations performed by an MCP-related service principal within 30 minutes of its sign-in.j-dahl7-mcp-attack-detection-sentinel-a074553/analytics-rules/mcp-identity-post-exploitation.json:8
The rule is configured to run every hour, look back over 1 day, and create an incident when any matching event is found.j-dahl7-mcp-attack-detection-sentinel-a074553/analytics-rules/mcp-identity-post-exploitation.json:9-12

Safety-review evidence

Behaviors behind the backdoor verdict

Observables

Analytics Rule: LAB - MCP Identity Post-Exploitation ChainThe file is a Microsoft Sentinel scheduled analytics rule that correlates Azure MCP service principal sign-ins with subsequent privileged operations to detect potential abuse of managed identity tokens.j-dahl7-mcp-attack-detection-sentinel-a074553/analytics-rules/mcp-identity-post-exploitation.json:1-58

Review boundaries

What the analysis did not establish

Only one text file (the analytics rule definition) was provided; the repository unit contains 18 other files (including 2 non-text media files) that were not included in the evidence packet.
The evidence does not include any exploit code, proof-of-concept scripts, or technical writeups describing how to trigger the associated CVEs.
Only one text file was provided; 2 non-text media files and 16 unclassified files were present in the artifact but not analyzed. Their content is unknown.

Model interpretation

This review is limited to the supplied PoC code and context. It does not assert that the code works or is safe to execute.