Vanity address exploit Hack

TOTAL LOST $950K
Low Other

Summarize with AI

ChatGPT Perplexity Claude Grok
Affected Chain 2022 Incident surface
Recovered - No recovery reported
All-Time Rank #851 By amount stolen
Protocol Type Exploit/Other Target category

Incident Overview

Quick Summary

Hackers have stolen around $950,000 worth of crypto from an Ethereum "vanity address" generated using the Profanity tool in an exploit likely using a "brute force" attack. The funds were transferred to Tornado Cash.

Details of the Exploit

The exploit targeted a vulnerability related to the vanity address generator Profanity, likely using a brute force attack. A vanity address is a type of crypto address that conforms to certain parameters laid out by the creator. The hacker stole 732 Ethereum on September 25 before transferring the funds straight to Tornado Cash.

The exploit leveraged a similar vulnerability related to the recent $160 million attack on market maker Wintermute.

Block Data Reference

Victim:

https://etherscan.io/address/0x9731f44b…0539b9

Tornado cash deposits:

https://bloxy.info/txs/calls_from/0x9731f44b…0539b9?signature_id=994162&smart_contract_address_bin=0xd90e2f92…24f31b

Incident Report

Protocol / Project Vanity address exploit
Date of Incident
Attack Technique Other
Classification Other
Primary Source View Post-Mortem #1 View Post-Mortem #2

Protocol Information

Protocol Type Exploit/Other
Team Anonymous
Source Code Unverified

What the Attacker Needed to Succeed

Understanding the prerequisites for this type of attack helps auditors identify protocols that are most at risk and helps developers build better defenses.

Technical Knowledge Deep understanding of other and Solidity and EVM internals
Capital Required Seed capital to cover gas and initial position setup
On-Chain Access Ability to interact with smart contracts and deploy a custom exploit contract
Protocol Analysis Identification of the exploitable vulnerability in Vanity address exploit's contract logic - root cause: other
Execution Speed Precise transaction ordering and timing to exploit the vulnerability within a single atomic block
Obfuscation Plan A strategy to launder and move stolen funds - typically through mixers, cross-chain bridges, or decentralized DEX swaps to resist tracing

What Auditors Should Check

Could this have been caught in audit? Likely — with a thorough Other audit checklist and test coverage

If you're auditing a protocol with similar architecture to Vanity address exploit, these are the critical security checks that could have prevented this incident (September 2022).

  • Verify all logic paths related to Other are guarded by proper access controls and input validation
  • Review privileged functions (owner, admin, governance) for potential abuse vectors - centralization risks should be documented and bounded with timelocks or multi-sigs

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Sources & References

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