That meant that some quarterly earnings reports were well above expectations, while others fell short, depending on the number of contracts due. Web survey firm Netcraft knows of nearly 800,000 public servers that run Red Hat 6.2 or 7.0. But the actual number of Linux-based servers that are vulnerable could actually run into the millions, according to industry observers. After the worm finds a vulnerable server, it uses the vulnerability to copy itself to the server, replace the front Web page with its own, and then starts scanning for other insecure servers. However, it eliminates the vulnerable programs from the server, protecting itself from further Ramen infection.
Patches are available for all the flaws exploited by the worm.
Linux users like to believe Linux is immune to hostile code attacks, but it is not immune to security exploits. Mitigation includes blocking traffic to the target systems at the border router and removing default and unnecessary services. Security experts highly recommended that users implement filtering rules at their border routers to block commonly exploited services, such as FTP and RPC on Internet-exposed machines. BACK TO TOP 2. The hackers, calling themselves Pentaguard, defaced U.S. government sites including the Republican Caucus for the California State Assembly and the U.S. Department of Interior's Alaska Office, as well as sites in the United Kingdom and Australia.