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Security audit

Hybrid Analysis

Security checks for vulnerabilities and agentic risk

Overview

The search workflow fits its purpose, but first-time setup directs the agent to execute an unverified remote installer without a separate approval step.

Review setup before enabling this skill. Install a verified CLI release yourself and require approval before any downloaded installer runs. Confirm whether the CLI will install or update skills in other agent applications. OOMOL is a disclosed intermediary for your Hybrid Analysis connection. The review concern is setup control and scope; the bundled search instructions show no evidence of malicious intent.

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
Vulnerability Patterns
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • Output HandlingUnvalidated Output Injection, Cross-Context Output, Unbounded Output
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Findings (5)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
97% confidence
Finding

The visible behavior is remote installer execution, not the declared Hybrid Analysis data access. Installation could be a supporting implementation detail if its relationship to the skill were established, but the supplied chunk provides no such connection. The downloaded script's contents and downstream effects are unknown; this finding does not imply that the installer is malicious.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
94% confidence
Finding

The supplied chunk contains only a login command and shows no Hybrid Analysis interaction. Authentication could support a declared service integration, but nothing in this chunk connects oo auth login to Hybrid Analysis. Its visible primary behavior therefore differs materially from the declared purpose.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

Piping an HTTPS response directly into bash executes mutable remote content without an integrity check or review opportunity. HTTPS protects transport but not against a compromised publishing endpoint, and the conditional setup context reduces exposure without eliminating the possibility of local code execution and credential theft.

Content

Scanner excerpt · SKILL.md (reported line 59)May include surrounding context.

First-time setup instructs the agent to execute remotely downloaded installation scripts without a system-integrity warning.

Medium
Category
Output Handling
Confidence
96% confidence
Finding

The fallback setup instructs execution of remotely fetched shell and PowerShell scripts without inspecting or independently verifying their contents, or requiring approval for installing software. Although conditional and relevant to the CLI dependency, this can execute attacker-controlled code with the invoking user's privileges if the distribution endpoint or release pipeline is compromised; it overlaps with SC2.

Content

No source excerpt is available for this finding.

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
80% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · SKILL.md (reported line 80)May include surrounding context.

md
- **`OOMOL_INSUFFICIENT_CREDIT`** — OOMOL billing stop. Recharge at `https://console.oomol.com/billing/token-recharge` before retrying.

- **HTTP 402 without `OOMOL_INSUFFICIENT_CREDIT`** — the third-party account itself has no active plan or credit. Report the provider error message as is; do not ask the user to recharge OOMOL.

## Resources