How much was lost in the Sirius Token hack?

The Sirius Token hack resulted in $45K in losses on September 22, 2022.

What attack technique was used in the Sirius Token exploit?

The Sirius Token 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.

Sirius Token Hack

TOTAL LOST $45K

Low Sep 22, 2022 Rugpull

Affected Chain 2022 Incident surface

Recovered - No recovery reported

All-Time Rank #1743 By amount stolen

Protocol Type Exit Scam/Rugpull Target category

Incident Overview

Quick Summary

Sirius Token was rugpulled by contract deployer-related addresses for the total amount of 44,963 $USD

Details of the Exploit

Sirius Token is a copycat BEP20 token, and can't be confused with Sirius Finance Project or other projects with the same name. $SIUS token was rugpulled by two EOA addresses, which got the token from the token deployer. The total drained liquidity reached 44,963 $USD worth of assets in $WBNB and $BUSD.

Block Data Reference

The malicious actors addresses:

https://bscscan.com/address/0x5386b957…b762a7

https://bscscan.com/address/0xd74d9828…2c4600

Liquidity Pool:

https://bscscan.com/address/0xBF5de443…7531FF

The biggest rug transaction:

https://bscscan.com/tx/0x7081408c…432538

Transfer transaction between malicious addresses:

https://bscscan.com/tx/0xef15fffc…42e318

Token flow from the deployer to the attacker:

https://bscscan.com/tx/0xc057f6e2…6aef4d

https://bscscan.com/tx/0xc2789ac7…a86557

https://bscscan.com/tx/0x32a03273…668186

Incident Report

Protocol / Project Sirius Token

Date of Incident September 22, 2022

Attack Technique Rugpull

Classification Token

Primary Source View Post-Mortem

Protocol Information

Protocol Type Exit Scam/Rugpull

Affected Token SIUS

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 Sirius Token'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 Sirius Token, these are the critical security checks that could have prevented this incident (September 2022).

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/1572792819798118400

Threat Assessment

Severity Level

LOW

Attack Vector Rugpull
Root Cause Token
Year 2022

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