The malware is a mass-mailing worm that affects machines running Microsofts Windows OS. When the malware infects a computer, it sends itself out again to other e-mail addresses found on the computer. The code is capable of downloading new versions of itself as frequently as every 30 minutes from a batch of websites. It’s estimated up to a few hundred thousand computers are infected, a sizable number, but not on the scale of large malware problems from a few years ago.”]
Source: https://www.csoonline.com/article/2121269/new-malware-is-vexing-security-vendors.html