The Bitkeep exploit that occurred on Dec. 26 used phishing websites to idiot customers into downloading faux wallets, in response to a report by blockchain analytics supplier OKLink.
The report said that the attacker arrange a number of faux Bitkeep web sites which contained an APK file that regarded like model 7.2.9 of the Bitkeep pockets. When customers “up to date” their wallets by downloading the malicious file, their non-public keys or seed phrases had been stolen and despatched to the attacker.
【12-26 #BitKeep Hack Occasion Abstract】
Based on OKLink knowledge, the bitkeep theft concerned 4 chains BSC, ETH, TRX, Polygon, OKLink included 50 hacker addresses and complete Txns quantity reached $31M.
— OKLink (@OKLink) December 26, 2022
The report didn’t say how the malicious file stole the customers’ keys in an unencrypted kind. Nevertheless, it might have merely requested the customers to re-enter their seed phrases as a part of the “replace,” which the software program may have logged and despatched to the attacker.
As soon as the attacker had customers’ non-public keys, they unstaked all property and drained them into 5 wallets underneath the attacker’s management. From there, they tried to money out a few of the funds utilizing centralised exchanges: 2 ETH and 100 USDC had been despatched to Binance, and 21 ETH had been despatched to Changenow.
The assault occurred throughout 5 completely different networks: BNB Chain, Tron, Ethereum, and Polygon, and BNB Chain bridges Biswap, Nomiswap, and Apeswap had been used to bridge a few of the tokens to Ethereum. In complete, over $13 million value of crypto was taken within the assault.
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It’s not but clear how the attacker satisfied customers to go to the faux web sites. The official web site for BitKeep supplied a hyperlink that despatched customers to the official Google Play Retailer web page for the app, nevertheless it doesn’t carry an APK file of the app in any respect.
The BitKeep assault was first reported by Peck Protect at 7:30 a.m. UTC. On the time, it was blamed on an “APK model hack.” This new report from OKLink means that the hacked APK got here from malicious websites, and that the developer’s official web site has not been breached.