Beosin: The hackerDao project suffered a price-fixing attack

05/24 10:24

The attacker borrows 2500WBNB from the first flash loan, exchanges part of WBNB for a large number of hackerDao, and then sends the hackerDao to WBNB/hackerDao. Skim function is called to claim the excess tokens to BUSD/hackerDao. When hackerDao token is transferred, if the transfer receiving address is BUSD/hackerDao, the balance of the sender's token will be simultaneously reduced to charge the commission. Therefore, the number of hackeDao in the WBNB/hackerDao transaction pair is abnormally reduced, thus affecting the token price of the transaction pair. This allows attackers to gain additional revenue when exchanging WBNB/hackerDao for WBNB. At present, the attacker has carried out two attacks with a total profit of about 200BNB, which has been transferred to Tornado. Cash.

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