Harry Denley, director of security at the MyCrypto, discovered that the Google Chrome extension named Shitcoin Wallet is stealing passwords and wallet private keys.
The Google Chrome extension was injecting JavaScript code on web pages to steal passwords and private keys from cryptocurrency wallets and cryptocurrency portals.
The Shitcoin Wallet Chrome extension was launched on December 9, it allows users to create their own wallet on the local terminals and communicate with other blockchain networks. The private key of the user’s wallet is only stored on his local PC.
“Your wallet is 100% secure and you don’t need to worry about assets loss due to any hacker attack to ShitcoinWallet servers. Currently ShitcoinWallet is supported on Chrome.” reads the Shitcoin Wallet blog.
Users can manage Ether (ETH) coins and also Ethereum ERC20-based tokens usually issued for ICOs directly from their browser thanks to the Chrome extension. Users can also install a Windows desktop app if they don’t want to manage the wallet within the browser.
Denley discovered that the Chrome extension sends the private keys of all wallets created or managed through its interface to the erc20wallet. It is also able to inject malicious JavaScript code when the user visits one of five management platforms (MyEtherWallet.com, Idex.Market, Binance.org, NeoTracker.io, and Switcheo.exchange). The malicious code was developed to steal login credentials and private keys and send them to the same domain.
The ‘Shitcoin Wallet’ Chrome extension downloads a number of javascript files from a remote server.
The malicious Chrome extension is still available for download in the official Google Chrome Web Store, it is currently installed by 621 users.
At the time it is not clear if the Shitcoin Wallet team developed the extension with the intent to steal the users’s data.
At the time of writing, the installers for the desktop app of the Shitcoin Wallet are not detected as malicious by major antivirus solutions.
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(SecurityAffairs – Shitcoin Wallet, hacking)
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