After recently impacting banks in South Africa, the malware is now infecting point-of-sale systems throughout the globe, including those in the U.S., a security firm found.
NTIA, an arm of the Commerce Department, is launching an initiative with the goal of developing a "voluntary, enforceable code of conduct" for commercial use of the technology.
The system crash reportedly kept bank customers from withdrawing money from ATMs and from carrying out mobile and online transactions.
The worm, called "Darlloz," exploits a PHP vulnerability to spread amongst Linux users.
According to Qualys, 39 percent of tested machines contained critical browser vulnerabilities, which users should be particularly mindful of during the holiday online shopping frenzy.