How much was lost in the Zircon Gamma hack?

The Zircon Gamma hack resulted in $350K in losses on March 18, 2023.

What attack technique was used in the Zircon Gamma exploit?

The Zircon Gamma exploit utilized Flashloan Pool Shares Exploit. 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.

Zircon Gamma Hack

TOTAL LOST $350K

Low Mar 18, 2023 Flashloan Pool Shares Exploit bsc moonriver

Affected Chain bsc 2 chains affected

Recovered - No recovery reported

All-Time Rank #1104 By amount stolen

Auditors 1 Prior security audit

Incident Overview

Zircon is a DEX protocol with a unique mechanism to provide liquidity with one token and with greatly reduced impermanent loss.

This is classified as a Flash Loans Attacks . Compare similar hacks →

Incident Report

Protocol / Project Zircon Gamma

Date of Incident March 18, 2023

Affected Chain(s) bsc moonriver

Attack Technique Flashloan Pool Shares Exploit

Classification Ecosystem

Primary Source View Post-Mortem

Protocol Information

Protocol Type Dexs

Protocol Twitter/X @Zircon_Finance

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 flashloan pool shares exploit and Solidity and EVM internals

Capital Required Seed capital to cover gas and initial position setup

On-Chain Access Ability to interact with bsc, moonriver smart contracts and deploy a custom exploit contract

Protocol Analysis Identification of the exploitable vulnerability in Zircon Gamma's contract logic - root cause: ecosystem

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 Flashloan Pool Shares Exploit audit checklist and test coverage

Audited by Audit Report 1 — still lost $350K. Prior audits don't guarantee safety, especially after post-audit code changes.

If you're auditing a protocol with similar architecture to Zircon Gamma, these are the critical security checks that could have prevented this incident (March 2023).

Verify all logic paths related to Flashloan Pool Shares Exploit are guarded by proper access controls and input validation - see the Flash Loans 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.

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Security Audit History

Audit Report 1 Report

Related Attack Classes

The technique used in this hack maps to these vulnerability classes in our security curriculum:

See all Flash Loans Attacks examples →

Flash Loans Attacks

Sources & References

01
Source 1 https://twitter.com/Zircon_Finance/status/1637093661321183233

Threat Assessment

Severity Level

LOW

Attack Vector Flashloan Pool Shares Exploit
Root Cause Ecosystem
Year 2023

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