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MFT: Malicious Fungible Tokens

Mauro EldritchCybelle Oliveira

Introduces mFT, an open-source tool demonstrating how to use blockchain-backed non-fungible tokens as immutable command-and-control infrastructure.

Summary

Blockchain Backed Command and Control

Command and control (C2) infrastructure is routinely disrupted by domain seizures, IP blocklists, and hosting takedowns. Utilizing public blockchain smart contracts provides adversaries with decentralized, takedown-resistant channels.

Relaying Commands via Non Fungible Tokens

Non-Fungible Tokens (NFTs) deployed on public ledgers can store and relay encoded payload directives, system fingerprinting queries, and data exfiltration markers.

The mFT Automated Payload Tool

Researchers built 'mFT', an open-source toolkit that automates generating malicious NFT payloads and provides safe sample tokens for defensive testing.

Defensive Detection and Ledger Analysis

Monitoring public blockchain transactions and smart contract state changes enables defenders to identify covert C2 relay activities across enterprise networks.

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