Game Swap Exchange Hack

TOTAL LOST $23K
Low Rugpull ethereum

Summarize with AI

ChatGPT Perplexity Claude Grok
Affected Chain ethereum Incident surface
Recovered - No recovery reported
All-Time Rank #1873 By amount stolen
Protocol Type Exit Scam/Rugpull Target category

Incident Overview

Quick Summary

The Game Swap Exchange project exploited its investors through minting and dumping the $GAME token for $ETH, netting the scammer $ETH 16 in the process.

Details of the Exploit

The Game Swap Exchange project existed for 1 day after launching. The contract deployer added initial liquidity at:

https://etherscan.io/tx/0x67abd476…202758

The contract deployer then used a hidden backdoor mechanism by using the minting functionality under the approveAndCall() function to generate new tokens onto this external address at:

https://etherscan.io/tx/0x179c0c41…a099c8

At this point it is important to state that investors without technical knowledge could have spotted a massive centralization risk with the external wallet holding +99% of the token supply:

https://etherscan.io/token/0x681b2447…6aa165#balances

The token recipient sold the minted tokens for $ETH 28,4, which meant the end for the project:

https://etherscan.io/tx/0x2bc2c0d4…55c56f

Block Data Reference

Project Deployer Address (Scammer):

https://etherscan.io/address/0x8c848be2…e4897b

Scammer Address that received the minted tokens:

https://etherscan.io/address/0x0659f352…4c194d

Incident Report

Protocol / Project Game Swap Exchange
Date of Incident
Affected Chain(s) ethereum
Attack Technique Rugpull
Classification Token
Primary Source View Post-Mortem

Protocol Information

Protocol Type Exit Scam/Rugpull
Affected Token GAME
Official Website gameswap.exchange/
Protocol Twitter/X @gameswapdefi
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 rugpull and Solidity and EVM internals
Capital Required Seed capital to cover gas and initial position setup
On-Chain Access Ability to interact with ethereum smart contracts and deploy a custom exploit contract
Protocol Analysis Identification of the exploitable vulnerability in Game Swap Exchange'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 Game Swap Exchange, these are the critical security checks that could have prevented this incident (January 2021).

  • 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.

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Sources & References

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