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Security audit

Airdrop Shark

Security checks for vulnerabilities and agentic risk

Overview

This airdrop tool is locally scoped, but it presents simulated crypto eligibility, reminders, and paid unlocks as if they work, which could mislead users financially.

Review this carefully before installing. It does not appear to steal keys or run hidden system code, but do not rely on its eligibility results for financial decisions and do not send crypto for the advertised unlock unless the publisher provides a verifiable payment and entitlement process.

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
Findings (3)

other

Error
Location
scripts/eligibility.mjs:10
Finding

Eligibility checks ignore the supplied address and return fabricated results

Content
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5 次', met: true, actual: '12 次' }, { name: '使用 > 3 条不同链', met: true, actual: '5 条链' }, { name: '总交易量 > $1000', met: true, actual: '$5,420' }, { name: '最近 30 天活跃', met: true, actual: '3 天前' } ], expectedValue: '$2000-5000', confidence: '高' }, zksync: { name: 'zkSync Era', passed: true, requirements: [ { name: '主网交互 > 3 次', met: true, actual: '8 次' }, { name: '持有 NFT', met: false, actual: '无' }, { name: '使用桥', met: true, actual: '是' } ], expectedValue: '$1000-3000', confidence: '中' }, starknet: { name: 'Starknet', passed: false, requirements: [ { name: '主网交互', met: false, actual: '无' }, { name: '持有代币', met: false, actual: '无' } ], expectedValue: '$500-2000', confidence: '低' }, scroll: { name: 'Scroll', passed: true, requirements: [ { name: '主网交互 > 5 次', met: true, actual: '6 次' }, { name: '使用桥', met: true, actual: '是' } ], expectedValue: '$300-1000', confidence: '中' } }; return checks[project.toLowerCase()] || null; } function showEligibility(p ...[truncated 2209 chars]
Remediation
View remediation

other

Warning
Location
scripts/reminder.mjs:35
Finding

Reminder command records data but cannot deliver notifications

Content
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Remediation
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other

Warning
Location
scripts/airdrop.mjs:147
Finding

Operational output solicits cryptocurrency payment for an unimplemented entitlement

Content
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Remediation
View remediation
Vulnerability Patterns
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • 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 (9)

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 40)May include surrounding context.

md
### 2. 资格检查 (`eligibility.mjs`)

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 52)May include surrounding context.

md
### 3. 提醒管理 (`reminder.mjs`)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
96% confidence
Finding

The README’s descriptive and instructional content is presented in Chinese throughout, which imposes a specific language on users. The policy allows locale constraints only when users are given a choice or when the constraint is clearly documented and justified, neither of which appears here.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
93% confidence
Finding

This markdown file contains the skill description, commands, parameters, and safety notes almost entirely in Chinese, but it does not state that the skill is region-specific or give users a choice of language. That creates a natural-language policy concern because the skill effectively forces a specific language without documented opt-in.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

The user-facing description, help text, status messages, and usage guidance are written in Chinese throughout the script. There is no indication that the user can select another language or that the Chinese-only interface is a justified region-specific constraint, which can violate language/locale policy requirements.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

The file's natural-language interface and descriptions are presented entirely in Chinese, and the CLI help/output likewise assumes Chinese for all users. There is no indication of user language selection, opt-in, or justification that this is a China-specific or Chinese-only skill, which creates a locale policy concern.

Content

No source excerpt is available for this finding.

Intent-Code Divergence

Medium
Category
Not specified by scanner
Confidence
98% confidence
Finding

The script advertises a --address option but never parses or uses it, and instead always displays a hardcoded example address. This creates a deceptive interface that can mislead users into believing they are checking their own wallet eligibility when the output is unrelated, which is especially risky in an airdrop/crypto context where users may make financial decisions based on the result.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
86% confidence
Finding

This JSON contains user-facing natural-language content in multiple places, with Chinese values such as "多链", "中", and requirement strings mixed with English terms like "Ethereum", "Swap", and "Quests". Because the file does not document a language/locale choice, this can create an implicit language policy issue for users who are not opted into mixed Chinese/English content.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
93% confidence
Finding

The package description includes Chinese text as the primary user-facing description, but the file provides no indication of language choice, localization options, or that the skill is intentionally region-specific. This can violate language/locale policy requirements when users are not given an explicit opt-in or alternative.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.