A new bit of malware called Masad Stealer can replace wallet addresses as you type them thanks to malicious code injected into your browser. According to Juniper Networks, it also steals:
PC and system information
Credit Card Browser Data
Installed software and processes
Screenshot of Desktop
AutoFill browser fields
Discord and Telegram data
The program dumps this information to the malware controller's Telegram account, ensuring relative security for the data it steals. It can also clip and change monero, litecoin, zcash, dash and ethereum addresses automatically and uses special search functions to pinpoint these addresses on your clipboard. Once it swaps the addresses it can intercept crypto as its being sent to legitimate wallets.
The particular version of the malware Juniper studied sent crypto to this wallet which currently contains almost a one full bitcoin.
"Based on our telemetry, Masad Stealer’s main distribution vectors are masquerading as a legitimate tool or bundling themselves into third party tools," wrote the research organization. "Threat actors achieve end user downloads by advertising in forums, on third party download sites or on file sharing sites."
The software masquerades as useful-looking software like Tradebot_binance.exe, Galaxy Software Update.exe, and Fortniteaimbot 2019.exe. Once infected, the computer then begins communicating with the command and control Telegram channel and sends back private data.
The malware allegedly costs $40 on the dark web and is completely configurable and very dangerous, said Juniper.
"Juniper Threat Labs believes that Masad Stealer represents an active and ongoing threat. Command and Control bots are still alive and responding as of this writing, and the malware appears to still be available for purchase on the black market," wrote the researchers.
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