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ID:

nowswap-243

Date:

Status:

Incident Count:

September 15, 2021

Verified

1

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REKT

Contributor:

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zerofriction.io

KYC By:

KYC:

None

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Audit By:

Audits:

None

Loss Amount:

1,000,000

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Recovered:

-

Rewards:

Currency:

USD, USDT, WETH

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Key Indicators

Platform:

Type:

Category:

Method:

Data Sources:

Ethereum

Protocol

Dexes

Contract Vulnerabilities

Extended Method:

Contract vulnerabilities

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Days in Operation:

774

(2.12 Years)

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Nowswap, a decentralized exchange on Ethereum, was attacked by a flash loan. The attacker emptied Nowswap’s liquidity pool. The liquidity pool was reduced from US$1,069,197 to US$24.15. The attacker made a profit of 536,000 USDT and 158 WETH. A total of more than 1 million US USD. The attacker used the K value verification vulnerability in the Nowswap USDT/WETH transaction pair contract to perform multiple exchanges, and each exchange obtained multiple times the normal due assets, until the assets in the trading pair pool were exhausted.

Stolen funds were transferred into Tornado.Cash.

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