ClaudSkills / Security / malware-analysis

File Upload Virus Scanning

Q: What is a Claude Code skill and how does the File Upload Virus Scanning skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. File Upload Virus Scanning is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Security · Sub-category: malware-analysis · Last updated: 2026-05-21

tool:salesforce type:scanner

Use when designing malware and content scanning for files uploaded to Salesforce (Files, Attachments, ContentVersion) — external scanning service callouts, quarantine patterns, and user-facing messaging. Triggers: 'virus scan salesforce upload', 'malware scan content version', 'quarantine uploaded file', 'clamav salesforce', 'file upload security'. NOT for field-level data validation.

About this skill (catalog notes)

File Upload Virus Scanning includes pricing or quota commentary. The SKILL.md runs to about 1,033 words, in the catalog's typical mid-range.

Original author: Pranav Nagrecha
Indexed lastmod: 2026-05-21
Catalog position: Security · malware-analysis
Indexed related skills: 10

How File Upload Virus Scanning fits the catalog

File Upload Virus Scanning sits in the Security category under the malware-analysis sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

Salesforce does not scan files. Any file uploaded into ContentVersion, Attachment, or a Document object is trusted bytes until you prove otherwise. For internal-only orgs the risk is moderate; for Experience Cloud portals, Email-to-Case, partner portals, and any surface that accepts uploads from unauthenticated or lightly authenticated users, the risk is substantial. Ransomware, credential stealers, and polyglot files routinely ride in on expected-looking PDFs and spreadsheets.

What this skill does

File Upload Virus Scanning is a community-contributed Claude Code skill in the malware-analysis sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/file-upload-virus-scanning/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when designing malware and content scanning for files uploaded to Salesforce (Files, Attachments, ContentVersion) — external scanning service callouts, quarantine patterns, and user-facing messaging. Triggers: 'virus scan salesforce upload', 'malware scan content version', 'quarantine uploaded file', 'clamav salesforce', 'file upload security'.

Who uses this skill

The File Upload Virus Scanning Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 120,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/file-upload-virus-scanning
curl -L https://claudskills.com/skills/file-upload-virus-scanning/SKILL.md \
  -o ~/.claude/skills/file-upload-virus-scanning/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/file-upload-virus-scanning/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/file-upload-virus-scanning/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\file-upload-virus-scanning\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the File Upload Virus Scanning Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/file-upload-virus-scanning/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the File Upload Virus Scanning skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the File Upload Virus Scanning skill?

Use File Upload Virus Scanning when your Claude Code task falls under the Security category — specifically in the malware analysis area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use File Upload Virus Scanning" or describe the task and let Claude pick). Browse related skills at /category/security/.

What is a Claude Code skill and how does the File Upload Virus Scanning skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. File Upload Virus Scanning is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Author: Pranav Nagrecha

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

Pranav Nagrecha. (2026). File Upload Virus Scanning [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/file-upload-virus-scanning/

BibTeX

@misc{file-upload-virus-scanning-2026,
  author    = {Pranav Nagrecha},
  title     = {File Upload Virus Scanning [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/file-upload-virus-scanning/}
}

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