Incident Overview
The Ratz Club project had its SOL wallet emptied by Inexplicable.eth from Sky Labs, resulting in the loss of an undisclosed amount of money.
On a date one and a half days prior to the incident, Inexplicable.eth transferred the entire contents of Ratz Club's SOL wallet to another wallet. The issue could be in malicious approve given previously.
The link to the transaction made by Inexplicable.eth can be found at https://solscan.io/account/C9EUZK7JxuGp46DWqr5PSK6BPfeGbZQaEy8YVCKu9Z1u.
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 Ratz Club, these are the critical security checks that could have prevented this incident (February 2022).
- 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 Ratz Club
The Ratz Club 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.