A new network worm that spreads through shared folders on machines running Microsoft Corp.’s Windows NT, 2000 and XP operating systems has been detected, according to advisories posted by a number of antivirus software makers today. The new worm, called W32/Lioten, also goes by the name Iraq_oil, Datrix, W32.Lioten, and I-Worm.Lioten, according to an advisory posted by Helsinki, Finland-based security company F-Secure Corp. Unlike other worms that spread through mass e-mailing, Lioten scans the Internet for vulnerable Windows machines that are sharing folders with other users on a home or business network. The worm finds new hosts to infect by randomly generating and attempting to connect to IP addresses on the Internet. The worm listens for responses on Port 445 from machines using Windows Server Message Block, a file- and resource-sharing protocol used in Windows environments. Once the new worm receives a response from a server, it attempts to crack that machine using a “brute-force” attack. The worm first obtains a list of user accounts on the machine and then attempts to log into each of those accounts by supplying values from its own list of likely passwords such as “admin,” “root,” “1234” and “asdf.” If the worm is successful in logging onto a machine using any of the user accounts, it places a copy of itself, iraq_oil.exe, in the System32 directory on that machine and creates a process on the machine to run the new executable. It is not known what else the worm does besides propagate itself, nor is the relevance of the “Iraq oil” reference understood, F-Secure said. Machines that are located behind a firewall are likely to be protected from the new worm. Even basic firewall configurations will block access to Port 445, according to F-Secure. Leading antivirus software makers including Symantec Corp.; Network Associates Inc., maker of McAfee; F-Secure Corp.; and Sophos PLC gave Lioten a “low” threat rating, indicating that the worm hasn’t spread widely on the Internet and that few if any infections linked to the Lioten worm have been reported. Still, antivirus companies today posted updated virus definitions that are capable of detecting the Lioten worm and recommended that customers running the affected operating systems download the latest virus definitions for their antivirus software. Related content news analysis Chasing business and partnerships, Apple goes APAC Apple CEO Tim Cook’s week-long visit to Indonesia, Vietnam, and Singapore highlights how the company continues to explore new opportunities in global markets. By Jonny Evans Apr 19, 2024 4 mins Manufacturing Industry Apple Vendors and Providers news Microsoft reminder: Support for Office 2016 and 2019 ends next year Older versions of Office apps and servers will no longer get security updates as of October 2025 — when Windows 10 also reaches end of support. By Matthew Finnegan Apr 19, 2024 3 mins Microsoft Office Microsoft Office Suites news Google consolidates AI teams into DeepMind to scale capacity The restructuring will simplify development by concentrating compute-intensive model building in one place and establishing single access points for PAs looking to take these models and build generative AI applications, Google said. By Gyana Swain Apr 19, 2024 4 mins Google news Zoom offers AI-based updates to its Workplace collaboration space The company's Workplace collaboration space gets several user interface upgrades over its previous version. By Lucas Mearian Apr 18, 2024 3 mins Zoom Video Communications Generative AI Collaboration Software Podcasts Videos Resources Events SUBSCRIBE TO OUR NEWSLETTER From our editors straight to your inbox Get started by entering your email address below. Please enter a valid email address Subscribe