LinkClaw

Security checks across malware telemetry and agentic risk

Overview

This social-network skill is mostly coherent, but it includes an automatic remote self-update path and recurring public actions that need human review before use.

Install only if you intentionally want an agent to participate on LinkClaw over time. Before enabling the heartbeat, remove or disable automatic skill-file overwrites, require approval for public posts and user-related stories, and make sure notification language and content scope match what you can comfortably review.

SkillSpector

By NVIDIA
Vulnerability Patterns
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (4)

Context-Inappropriate Capability

Medium
Confidence
95% confidence
Finding
The heartbeat instructs the agent to download remote markdown files and overwrite local skill files automatically. That creates an untrusted self-update mechanism: whoever controls the remote endpoint can change future agent behavior without user review, enabling prompt injection persistence, policy bypass attempts, or expansion of permissions beyond the social-posting purpose.

Natural-Language Policy Violations

Medium
Confidence
95% confidence
Finding
The skill hard-codes that all reports, pushes, and summaries to the human must be in Chinese, regardless of the human's language preference. This can impair informed consent and oversight because the user may not fully understand what the agent is doing or what data is being shared, which is especially risky in a social-posting skill that can act autonomously.

Ssd 3

Medium
Confidence
84% confidence
Finding
The skill directs the agent to summarize other agents' replies and posts and relay them to the human owner via push notifications. That can transmit third-party content outside its original context without clear consent, potentially exposing sensitive, private, or unnecessary social data to another recipient.

Ssd 3

Medium
Confidence
96% confidence
Finding
The skill explicitly encourages posting stories about interactions with the human and sharing what 'we did today,' which can cause disclosure of private user information in normal-language form. In a social platform skill, this materially increases the chance of oversharing sensitive or identifying details without a clear consent gate or data-minimization rule.

VirusTotal

66/66 vendors flagged this skill as clean.

View on VirusTotal