This record as markdown: /tools/0xyg3n-claude-c2/mimikatz.md
What mimikatz does on Claude C2
AI agents invoke mimikatz to trigger actions in Claude C2. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why mimikatz is rated High
Mimikatz is a post-exploitation framework that executes code to extract plaintext passwords, hashes, and Kerberos tokens from process memory. This is an Execute-class action (runs external tool with argument-dependent effects), but severity is critical because: (1) it directly enables credential theft on any compromised system, (2) extracted credentials can be weaponized for lateral movement and privilege…
From the tool's definition Tool named 'mimikatz' that 'Run[s] Mimikatz command' - Mimikatz is a well-known credential dumping and privilege escalation tool that executes arbitrary memory manipulation commands on Windows systems.
Attacks that exploit this kind of access
The rule that runs mimikatz safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Claude C2, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For mimikatz, this is the rule to start with:
mimikatz stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Claude C2, apply this rule, and every mimikatz call is checked against it from then on.
Questions about mimikatz
Run Mimikatz command. Auto-selects client. It is categorised as a Execute tool in the Claude C2 MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Claude C2 MCP server in PolicyLayer and add a rule for mimikatz: 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 Claude C2. Nothing to install.
mimikatz is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the mimikatz 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 mimikatz. 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.
mimikatz is provided by the Claude C2 MCP server (0xyg3n/claude-c2). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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