Linux Lupper.Worm In the Wild

[Spiros Bolis]

http://linux.slashdot.org/linux/05/11/08/140203.shtml?tid=220&tid=106

The Linux/Lupper.worm is a derivative of the Linux/Slapper worm which
also exists for BSD, just to be crossplatform. From the McAfee
description: The worm blindly attacks web servers by sending malicious
http requests on port 80. If the target server is running one of the
vulnerable scripts at specific URLs and is configured to permit external
shell commands and remote file download in the PHP/CGI environment, a
copy of the worm could be downloaded and executed.