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Security audit

scam-wallet-screener

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward wallet blocklist checker that discloses its network fetch and local cache behavior.

Before installing, understand that the skill downloads a community-maintained scam address list from GitHub and stores a local cache for 6 hours. A clean result is only a blocklist miss, not proof that a wallet or contract is safe.

A.I.G

Vulnerability Patterns
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs

SkillSpector

Vulnerability Patterns
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (1)

Undeclared Tool Scope

Medium
Category
MCP Least Privilege
Confidence
89% confidence
Finding

The skill advertises executable behavior that uses network access and local file writes (fetching a remote JSON feed and caching it locally) but does not declare any explicit tool scope such as permissions or allowed-tools. That creates a transparency and policy gap: an agent may run with broader capabilities than reviewers or users expect, increasing the risk of unauthorized outbound requests, unreviewed data ingestion from the internet, or filesystem modification.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.