How much was lost in the HarryPotterObamaJustinHuobiSun hack?

The HarryPotterObamaJustinHuobiSun hack resulted in $43K in losses on August 23, 2023.

What attack technique was used in the HarryPotterObamaJustinHuobiSun exploit?

The HarryPotterObamaJustinHuobiSun 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.

HarryPotterObamaJustinHuobiSun Hack

TOTAL LOST $43K

Low Aug 23, 2023 Rugpull

Affected Chain 2023 Incident surface

Recovered - No recovery reported

All-Time Rank #1752 By amount stolen

Protocol Type Exit Scam/Rugpull Target category

Incident Overview

Quick Summary

HarryPotterObamaJustinHuobiSun rugpull exit scam occurred on Aug 23, 2023, with a loss of 42,696 USD worth of ETH.

Details of the Exploit

HarryPotterObamaJustinHuobiSun (USDT), an ERC20 token trading on UniSwap, experienced a rugpull exit scam. The deployer removed liquidity from the LP pool, causing a loss of 26.07 ETH, equivalent to 42,696 USD. It's important to note that this token is a copycat and should not be confused with the original Tether USD (USDT).

The stolen funds were transferred to a couple of EOA addresses and then distributed further.

Block Data Reference

Deployer Address:

https://etherscan.io/address/0x4Fe24527…7f451d

Scammer Addresses:

https://etherscan.io/address/0xC49a11fE…907368

https://etherscan.io/address/0xD100b4F8…0eB030

Liquidity Adding Transaction:

https://etherscan.io/tx/0x54d76c2c…b443e3

Liquidity Removal Transaction:

https://etherscan.io/tx/0xce1f9894…637ccb

Incident Report

Protocol / Project HarryPotterObamaJustinHuobiSun

Date of Incident August 23, 2023

Attack Technique Rugpull

Classification Token

Primary Source View Post-Mortem

Protocol Information

Protocol Type Exit Scam/Rugpull

Affected Token USDT

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 HarryPotterObamaJustinHuobiSun'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 HarryPotterObamaJustinHuobiSun, these are the critical security checks that could have prevented this incident (August 2023).

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

01
Source 1 https://twitter.com/CertiKAlert/status/1694357925072920800?s=20

Threat Assessment

Severity Level

LOW

Attack Vector Rugpull
Root Cause Token
Year 2023

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