Software that can be downloaded for use with the Energizer Duo USB battery charger contains a backdoor that could allow an attacker to remotely take control of a Windows-based PC, Energizer and US-CERT is warning.
"The installer for the Energizer Duo software places the file UsbCharger.dll in the application's directory and Arucer.dll in the Windows system32 directory," the U.S. Computer Emergency Readiness Team said in an advisory on Friday. "Arucer.dll is a backdoor that allows unauthorized remote system access via accepting connections on 7777/tcp. Its capabilities include the ability to list directories, send and receive files, and execute programs."
The Windows software was made available via a download with the Energizer Duo Charger, Model CHUSB, Energizer said in a statement.
The battery maker said it does not know how the Trojan got into the software. "Energizer has discontinued sale of this product and has removed the site to download the software," the statement said. "Energizer is currently working with both CERT and U.S. government officials to understand how the code was inserted in the software."
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