virustotal_lookup
AI agents call virustotal_lookup to retrieve information from Malware Analysis MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool performs a lookup query against VirusTotal APIs to retrieve threat intelligence data about malware indicators and file metadata. This is a read-only information retrieval operation with no capability to modify, delete, or execute anything. The context (defensive security research, IOC searching) confirms the defensive, non-destructive nature.
From the tool's definition Tool named 'virustotal_lookup' on a Malware Analysis MCP Server described as providing 'threat intelligence and malware metadata' with capabilities to 'search for IOCs, analyze local file hashes' — lookup operations are inherently retrieval/query actions…
Attacks that exploit this kind of access
virustotal_lookup. It is categorised as a Read tool in the Malware Analysis MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Malware Analysis MCP Server MCP server in PolicyLayer and add a rule for virustotal_lookup: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Malware Analysis MCP Server. Nothing to install.
virustotal_lookup is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the virustotal_lookup rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for virustotal_lookup. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
virustotal_lookup is provided by the Malware Analysis MCP Server MCP server (securitytalent/malware-analysis-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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