AWS Cdk Development
zxkane/aws-skills
AWS Cloud Development Kit (CDK) expert for building cloud infrastructure with TypeScript/Python.
Deploys and monitors ransomware canary files using Python's watchdog library, placing decoy files mimicking high-value targets (financial records, credentials, database exports) where ransomware…
Install Deploying Ransomware Canary Files
$ npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill deploying-ransomware-canary-files -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install mukul975/Anthropic-Cybersecurity-Skills deploying-ransomware-canary-files --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/deploying-ransomware-canary-files .claude/skills/deploying-ransomware-canary-files && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "deploying-ransomware-canary-files" agent skill from https://github.com/mukul975/Anthropic-Cybersecurity-Skills/tree/main/skills/deploying-ransomware-canary-files into .claude/skills/deploying-ransomware-canary-files/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "deploying-ransomware-canary-files", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/mukul975/Anthropic-Cybersecurity-Skills/tree/main/skills/deploying-ransomware-canary-filesType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill deploying-ransomware-canary-files -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install mukul975/Anthropic-Cybersecurity-Skills deploying-ransomware-canary-files --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/deploying-ransomware-canary-files .agents/skills/deploying-ransomware-canary-files && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "deploying-ransomware-canary-files" agent skill from https://github.com/mukul975/Anthropic-Cybersecurity-Skills/tree/main/skills/deploying-ransomware-canary-files into .agents/skills/deploying-ransomware-canary-files/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "deploying-ransomware-canary-files", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill deploying-ransomware-canary-files -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install mukul975/Anthropic-Cybersecurity-Skills deploying-ransomware-canary-files --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/deploying-ransomware-canary-files .cursor/skills/deploying-ransomware-canary-files && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "deploying-ransomware-canary-files" agent skill from https://github.com/mukul975/Anthropic-Cybersecurity-Skills/tree/main/skills/deploying-ransomware-canary-files into .cursor/skills/deploying-ransomware-canary-files/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "deploying-ransomware-canary-files", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git --path skills/deploying-ransomware-canary-files--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill deploying-ransomware-canary-files -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install mukul975/Anthropic-Cybersecurity-Skills deploying-ransomware-canary-files --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/deploying-ransomware-canary-files .gemini/skills/deploying-ransomware-canary-files && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "deploying-ransomware-canary-files" agent skill from https://github.com/mukul975/Anthropic-Cybersecurity-Skills/tree/main/skills/deploying-ransomware-canary-files into .gemini/skills/deploying-ransomware-canary-files/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "deploying-ransomware-canary-files", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install mukul975/Anthropic-Cybersecurity-Skills deploying-ransomware-canary-filesInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill deploying-ransomware-canary-files -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/deploying-ransomware-canary-files .github/skills/deploying-ransomware-canary-files && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "deploying-ransomware-canary-files" agent skill from https://github.com/mukul975/Anthropic-Cybersecurity-Skills/tree/main/skills/deploying-ransomware-canary-files into .github/skills/deploying-ransomware-canary-files/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "deploying-ransomware-canary-files", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill deploying-ransomware-canary-files -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install mukul975/Anthropic-Cybersecurity-Skills deploying-ransomware-canary-files --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/deploying-ransomware-canary-files .opencode/skills/deploying-ransomware-canary-files && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "deploying-ransomware-canary-files" agent skill from https://github.com/mukul975/Anthropic-Cybersecurity-Skills/tree/main/skills/deploying-ransomware-canary-files into .opencode/skills/deploying-ransomware-canary-files/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "deploying-ransomware-canary-files", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
deploying-ransomware-canary-files- GitHub stars
- 34k
- Token cost
- ~1.2k tokens
- SKILL.md length
- 426 words
- Files
- 4 (incl. scripts, references)
- Skills in repo
- 644
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Deploys and monitors ransomware canary files using Python's watchdog library, placing decoy files mimicking high-value targets (financial records, credentials, database exports) where ransomware…
- Works in 4 steps: Generate Canary Files → Deploy Filesystem Monitor → Configure Alert Pipeline → …
- Early-warning ransomware detection on file servers
- SKILL.md covers When to Use, Prerequisites, Workflow and Key Concepts, plus 2 more sections
- Runs Python scripts from its folder
What it does
Deploying Ransomware Canary Files is an agent skill from mukul975/Anthropic-Cybersecurity-Skills. Deploys and monitors ransomware canary files using Python's watchdog library, placing decoy files mimicking high-value targets (financial records, credentials, database exports) where ransomware enumerates first, and alerting via email, Slack, or syslog on any read/modify/rename/delete. Use for early-warning ransomware detection on file servers, NAS, or endpoints, or to supplement EDR where agents can't be deployed.
Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files, including scripts and reference files (for example `references/api-reference.md` and `scripts/agent.py`).
It sits in DevOps & Cloud, covering Deployment. It works with Python and Slack. The repository describes itself as: 817 structured cybersecurity skills for AI agents · Mapped to 6 frameworks: MITRE ATT&CK, NIST CSF 2.0, MITRE ATLAS, D3FEND, NIST AI RMF & MITRE F3 (Fight Fraud) · agentskills.io…. The licence is Apache-2.0.
When your agent uses it
- Early-warning ransomware detection on file servers
- Supplement EDR where agents cant be deployed
Example prompts
- “Use the deploying-ransomware-canary-files skill to deploy and monitors ransomware canary files using Python's watchdog library, placing decoy files…”
- “/deploying-ransomware-canary-files”
Requirements
- Python 3
Workflow steps
4 steps, taken from the step headings in SKILL.md.
What it can do on your machine
Read from SKILL.md and the folder at commit 54a7988. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships 1 file in scripts/ (Python), which the agent can run.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Deploying Ransomware Canary Files loads about 1.2k tokens when it runs, and up to ~2k if it reads all its reference files. Until then it costs about 113 tokens; SKILL.md has 426 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.
SKILL.md
The full file from mukul975/Anthropic-Cybersecurity-Skills at commit 54a7988, republished under its Apache-2.0 licence (© mukul975). 426 words, ~1,208 tokens.
Download SKILL.mdSave it as
.claude/skills/deploying-ransomware-canary-files/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.- name
- deploying-ransomware-canary-files
- description
- Deploys and monitors ransomware canary files using Python's watchdog library, placing decoy files mimicking high-value targets (financial records, credentials, database exports) where ransomware enumerates first, and alerting via email, Slack, or syslog on any read/modify/rename/delete. Use for early-warning ransomware detection on file servers, NAS, or endpoints, or to supplement EDR where agents can't be deployed.
- domain
- cybersecurity
- subdomain
- ransomware-defense
- tags
- ransomware, canary-files, watchdog, detection, early-warning, deception, defense
- version
- 1.0.0
- author
- mahipal
- license
- Apache-2.0
- nist_csf
- PR.DS-11, RS.MA-01, RC.RP-01, PR.IR-01
- mitre_attack
- T1486, T1083, T1490, T1485
- mitre_f3.version
- 1.1
- mitre_f3.tactics
- monetization
Deploying Ransomware Canary Files
When to Use
- Deploying proactive ransomware detection on file servers, NAS devices, or endpoint systems
- Building an early-warning system that detects ransomware before it encrypts business-critical data
- Supplementing EDR solutions with lightweight canary file monitoring on systems where agents cannot be deployed
- Testing ransomware incident response procedures by simulating canary file triggers
- Monitoring shared drives, home directories, and backup volumes for unauthorized file operations
Do not use as a replacement for endpoint protection, backup strategy, or network segmentation. Canary files are a detection layer, not a prevention mechanism.
Prerequisites
- Python 3.8+ with pip
- watchdog library (pip install watchdog)
- Write access to directories where canary files will be placed
- SMTP server credentials or Slack webhook URL for alerting
- Administrative access for placing canaries in system directories
Workflow
Step 1: Generate Canary Files
Create decoy files with realistic names and content that attract ransomware scanners. Files should have names like Passwords.xlsx, Financial_Report_2026.docx, backup_credentials.csv and contain plausible-looking but fake data. Place them in directories ransomware typically targets first: user desktops, Documents folders, network share roots, and backup paths.
Step 2: Deploy Filesystem Monitor
Use Python's watchdog library with a custom FileSystemEventHandler that watches canary file paths. The handler triggers on on_modified, on_deleted, on_moved, and on_created events for canary files. Any legitimate user or process should never touch these files, so any interaction is a high-confidence indicator of ransomware or unauthorized access.
Step 3: Configure Alert Pipeline
Wire the filesystem monitor to multiple alert channels: email via SMTP, Slack webhook POST, syslog forwarding to SIEM, and local log file. Include the triggering event type, file path, timestamp, and process information (when available) in alert payloads.
Show full SKILL.md (151 more words)Show less
Step 4: Validate and Test
Simulate ransomware behavior by programmatically modifying, renaming, and deleting canary files to verify the detection pipeline fires correctly. Measure time-to-alert and validate alert delivery across all configured channels.
Key Concepts
| Term | Definition |
|---|---|
| Canary File | A decoy file placed in a monitored directory that triggers an alert when accessed, modified, or deleted |
| Watchdog | Python library that monitors filesystem events using OS-native APIs (inotify on Linux, FSEvents on macOS, ReadDirectoryChangesW on Windows) |
| Honey File | Synonym for canary file; a fake document designed to attract and detect malicious activity |
| Entropy Check | Measuring randomness in file content to detect encryption (ransomware produces high-entropy output) |
Tools & Systems
- watchdog: Python filesystem monitoring library using OS-native event APIs
- smtplib: Python standard library for SMTP email alerting
- requests: HTTP library for Slack webhook integration
- hashlib: SHA-256 hashing for canary file integrity verification
- psutil: Process information gathering when canary file access is detected
Output Format
RANSOMWARE CANARY ALERT
========================
Timestamp: 2026-03-11T14:23:07Z
Event: FILE_MODIFIED
Canary File: /srv/shares/finance/Passwords.xlsx
Directory: /srv/shares/finance
SHA-256 Before: a3f2...8b4c
SHA-256 After: 7e91...2d3f
Alert Channels: [email, slack, syslog]
Action: Investigate immediately - potential ransomware activity© mukul975, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 3 other files (scripts, references) in skills/deploying-ransomware-canary-files of mukul975/Anthropic-Cybersecurity-Skills.
- SKILL.md
- LICENSE
- references/api-reference.md
- scripts/agent.py
Open the folder on GitHubat commit 54a7988
Compare with similar skills
Deploying Ransomware Canary Files next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Deploying Ransomware Canary Files this skillmukul975/Anthropic-Cybersecurity-Skills | 34k | — | ~1.2k | Automated safety check: Pass | Apache-2.0 | |
| AWS Cdk Developmentzxkane/aws-skills | 367 | 2 repos | ~2.5k | Automated safety check: Pass | MIT | |
| Azure Architecture Autopilotgithub/awesome-copilot | 40k | 1 repos | ~1.9k | Automated safety check: Pass | MIT | |
| Blocks Networkblocksnetwork/blocks-sdk | 146 | — | ~2.3k | Automated safety check: Notes | Proprietary | |
| DDNS Build and Release MaintenanceNewFuture/DDNS | 4.7k | — | ~444 | Automated safety check: Pass | MIT | |
| Vpn DeploySergei-thinker/vpn-setup | 189 | — | ~1.4k | Automated safety check: Notes | MIT |
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Related
Categories
Questions about Deploying Ransomware Canary Files
What does Deploying Ransomware Canary Files do?
Deploys and monitors ransomware canary files using Python's watchdog library, placing decoy files mimicking high-value targets (financial records, credentials, database exports) where ransomware…. Deploying Ransomware Canary Files is an agent skill from mukul975/Anthropic-Cybersecurity-Skills. Deploys and monitors ransomware canary files using Python's watchdog library, placing decoy files mimicking high-value targets (financial records, credentials, database exports) where ransomware enumerates first, and alerting via email, Slack, or syslog on any read/modify/rename/delete.
When should I use Deploying Ransomware Canary Files?
Deploying Ransomware Canary Files fits situations like: early-warning ransomware detection on file servers; supplement EDR where agents cant be deployed.
How do I install Deploying Ransomware Canary Files in Claude Code?
Run `npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill deploying-ransomware-canary-files -a claude-code`. Or copy the skill folder (skills/deploying-ransomware-canary-files in mukul975/Anthropic-Cybersecurity-Skills) into .claude/skills/deploying-ransomware-canary-files in your project. Claude Code loads it when a task matches its description.
How do I install Deploying Ransomware Canary Files in Codex?
Run `npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill deploying-ransomware-canary-files -a codex`. Or copy the skill folder (skills/deploying-ransomware-canary-files in mukul975/Anthropic-Cybersecurity-Skills) into .agents/skills/deploying-ransomware-canary-files in your project. Codex loads it when a task matches its description.
Can I use Deploying Ransomware Canary Files in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill deploying-ransomware-canary-files -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/deploying-ransomware-canary-files, .gemini/skills/deploying-ransomware-canary-files, .github/skills/deploying-ransomware-canary-files and .opencode/skills/deploying-ransomware-canary-files in your project.
What does Deploying Ransomware Canary Files need to run?
Going by SKILL.md and its folder, Deploying Ransomware Canary Files needs Python for the scripts in its folder. Our summary lists: Python 3.
Does Deploying Ransomware Canary Files access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Deploying Ransomware Canary Files safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Deploying Ransomware Canary Files use?
Deploying Ransomware Canary Files is published under the Apache-2.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Deploying Ransomware Canary Files use?
About 1.2k tokens (SKILL.md is roughly 4.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 748 tokens, read only when the agent opens those files.
What are the alternatives to Deploying Ransomware Canary Files?
Skills that share tags, products or a category with Deploying Ransomware Canary Files: AWS Cdk Development (zxkane/aws-skills, 367 stars), Azure Architecture Autopilot (github/awesome-copilot, 40k stars), Blocks Network (blocksnetwork/blocks-sdk, 146 stars) and DDNS Build and Release Maintenance (NewFuture/DDNS, 4.7k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Deploying Ransomware Canary Files?
mukul975 (a GitHub user) maintains it in mukul975/Anthropic-Cybersecurity-Skills, which has 34,116 GitHub stars. The repository holds 644 skills in this directory. The repository was last updated on August 31, 2026.
Source: mukul975/Anthropic-Cybersecurity-Skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.