Incident Overview
A contract affiliated with "zero name service" incurred losses exceeding $1.4 million in Wilder tokens due to a malevolent contract upgrade.
The exploit entailed a malicious upgrade of the contract, leading to substantial losses amounting to over $1.4 million in Wilder tokens. Notably, the perpetrator's address 0x6584a486…758fa9 has been identified in connection with the attack. Funds from the victim's address are currently being directed towards Tornado Cash, indicating potential laundering efforts.
Attacker:
https://etherscan.io/address/0x6584a486…758fa9
Exploited proxy admin:
https://etherscan.io/address/0x6ca959fb…3a57c6
Example of drain TX:
https://etherscan.io/tx/0x291ae90f…ae5574
Incident Report
Protocol Information
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.
What Auditors Should Check
If you're auditing a protocol with similar architecture to Wilder, these are the critical security checks that could have prevented this incident (April 2024).
- Verify all logic paths related to Access Control are guarded by proper access controls and input validation - see the Access Control Attacks attack class for patterns
- 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 TrialRelated Attack Classes
The technique used in this hack maps to these vulnerability classes in our security curriculum:
Sources & References
Learn to Prevent the Next Wilder
The Wilder 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.