Is "proofscan" on MCP Registry Safe to Install?

GitHub Actions · mcp · v0.11.2

MCP Server scanner - eliminate black boxes by capturing JSON-RPC from connection to tools/list

Risk Assessment

Analyzed
100
out of 100
CRITICAL

1804 security findings detected across all analyzers

MCP server analyzed for tool poisoning, prompt injection, and data exfiltration

Severity Breakdown

77
Critical
893
High
830
Medium
0
Low
0
Info

Finding Categories

821
Malware Signatures
40
Secrets
14
Network

YARA Rules Matched

16 rules(821 hits)
postinstall crypto operations postinstall network communication postinstall obfuscation postinstall system command postinstall registry modification postinstall file manipulation postinstall file download credential env files UsingShellInterpreterWhenExecutingOSCommands AlertStatementsShouldNotBeUsed LocalStorageShouldNotBeUsed postinstall persistence mechanism postinstall environment access ReadingTheStandardInput UsingCommandLineArguments NoUseWeakRandom

MCP Server Analysis

MCP servers expose tools and resources to AI assistants. Unlike browser extensions, they run as standalone processes with direct system access. Tool definitions are analyzed for prompt injection, data exfiltration, and tool poisoning patterns.

About This Extension

MCP Server scanner - eliminate black boxes by capturing JSON-RPC from connection to tools/list

Detailed Findings

1000 total

YARA Rule Matches

16 rules

Security Analysis Summary

Security Analysis Overview

proofscan is a mcp extension published by GitHub Actions. Version 0.11.2 has been analyzed by the Risky Plugins security platform, receiving a risk score of 100/100 (CRITICAL risk) based on 1804 security findings.

Risk Assessment

This extension presents critical security risk. Severe issues were detected, potentially including malware indicators, exposed secrets, or dangerous behaviors. Installation is strongly discouraged until these issues are addressed.

Findings Breakdown

  • Critical: 77 finding(s)
  • High: 893 finding(s)
  • Medium: 830 finding(s)

What Was Analyzed

The security assessment covers multiple analysis categories:

  • Malware Detection: YARA rule matching against 2,400+ malware signatures
  • Secret Detection: Scanning for exposed API keys, tokens, and credentials
  • Static Analysis: Code-level security analysis for common vulnerability patterns
  • Network Analysis: Detection of suspicious network communications and endpoints
  • Obfuscation Detection: Identification of code obfuscation techniques

Developer Information

proofscan is published by GitHub Actions on the mcp marketplace.

Recommendation

This extension is not recommended for installation without thorough manual review. Consider alternatives with lower risk scores, or contact the developer to address the identified security concerns.

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