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Security audit

VirusTotal

Security checks for vulnerabilities and agentic risk

Overview

The skill is a coherent VirusTotal connector, but its first-time setup recommends executing remote installer scripts without checksum or signature verification.

Review the oo CLI installation path before installing. Prefer a verified package-manager or documented installer flow, inspect downloaded scripts, and confirm write actions such as uploads, votes, comments, rescans, or URL scans before allowing the agent to run them.

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
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (1)

External Script Fetching

High
Category
Supply Chain
Confidence
96% confidence
Finding

The skill instructs the agent to install the oo CLI via curl ... | bash, which downloads and executes a remote script without integrity verification or pinning. Even though this appears to be a convenience setup step, it creates a supply-chain execution path where a compromised host, MITM in a misconfigured environment, or unexpected script change could lead to arbitrary code execution on the user's machine.

Content

Scanner excerpt · SKILL.md (reported line 70)May include surrounding context.

Static analysis

No suspicious patterns detected.