How much was lost in the DeFi WZ Token hack?

The DeFi WZ Token hack resulted in $208K in losses on November 07, 2022.

What attack technique was used in the DeFi WZ Token exploit?

The DeFi WZ Token exploit utilized Rugpull. Understanding this attack vector is critical for smart contract auditors and developers building secure DeFi protocols.

How can developers prevent similar smart contract attacks?

Preventing smart contract hacks requires a combination of secure coding practices, thorough security audits, and understanding common attack vectors like reentrancy, oracle manipulation, and access control flaws. Smart Contract Hacking (SCH) provides hands-on training to help developers and auditors identify and prevent vulnerabilities before deployment.

DeFi WZ Token Hack

TOTAL LOST $208K

Low Nov 07, 2022 Rugpull

Affected Chain 2022 Incident surface

Recovered - No recovery reported

All-Time Rank #1281 By amount stolen

Protocol Type Exit Scam/Rugpull Target category

Incident Overview

Quick Summary

DeFi WZ Token was rugpulled for 207,620 $USD. The deployer-related EOA address removed liquidity and transferred the funds.

Details of the Exploit

DeFi WZ is a BEP20 token trading on PancakeSwap. The token deployer-related EOA address removed liquidity for 44,822 $USD. Consequently, the swapped 2648 $DEFIWZ tokens for 162,797 $USD in one transaction.

All the stolen amount was transferred to another EOA address.

Block Data Reference

Scammer addresses:

https://bscscan.com/address/0x8a8072ba…f86629

https://bscscan.com/address/0x5c469dc5…4f9dcd

Liquidity removal transaction:

https://bscscan.com/tx/0x547d0921…2ac139

Token swap transaction:

https://bscscan.com/tx/0x4f8df803…4d49fc

Funds transfer transaction:

https://bscscan.com/tx/0xbd6d0ba6…c3b666

Incident Report

Protocol / Project DeFi WZ Token

Date of Incident November 07, 2022

Attack Technique Rugpull

Classification Token

Primary Source View Post-Mortem

Protocol Information

Protocol Type Exit Scam/Rugpull

Affected Token DEFIWZ

Team Anonymous

Source Code Verified On-Chain

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 rugpull 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 DeFi WZ Token's contract logic - root cause: token

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? Hard to catch — private key / OpSec failures are outside smart contract audit scope

If you're auditing a protocol with similar architecture to DeFi WZ Token, these are the critical security checks that could have prevented this incident (November 2022).

Verify all logic paths related to Rugpull 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

Master these auditing techniques with hands-on labs and real exploit scenarios in the Smart Contract Hacking course.

Free Trial

Sources & References

01
Source 1 https://twitter.com/CertiKAlert/status/1589722752277045248

Threat Assessment

Severity Level

LOW

Attack Vector Rugpull
Root Cause Token
Year 2022

Learn to Prevent the Next DeFi WZ Token

The DeFi WZ Token hack is one of many attacks that skilled auditors are trained to detect before deployment. Master real exploit patterns and defense techniques with hands-on Web3 security training.

Start Free Trial Browse Attack Library