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Top Forums UNIX for Dummies Questions & Answers virus????????
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Old 07-01-2002
I have never seen anyone attempt to attack a unix system via a true virus. And the only true unix virus that I ever saw were written by researchers just to demonstrate that it could be done. Worms and trojan horses are the primary problems. And some folks call these (incorrectly) viruses, especially if they involve machine language payloads.

But note that the rlogin bug only requires that the rlogin executable be present on the system. You don't need to allow the r-cmds protocol on your network. You don't need to be running or even have a rlogind anywhere. You don't even need to have connected your system to a network. If you have a broken rlogind executable on your system, any non-root user can use it to become root.

And code delivered to your system via a trojan horse or worm might try it. And rlogin was just an example anyway. Most of the attacks on unix in the past decade have used buffer overrruns.
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xbill(6)							   Games Manual 							  xbill(6)

xbill - save your computers from Wingdows [TM] virus SYNOPSIS
xbill [-l level] [--gui gui] [--sizesize] [-v] [-h] DESCRIPTION
Ever get the feeling that nothing is going right? You're a sysadmin, and someone's trying to destroy your computers. The little people running around the screen are trying to infect your computers with Wingdows [TM], a virus cleverly designed to resemble a popular operating system. Your objective is to click the mouse on them, ending their potential threat. If one of the people reaches a computer, it will attempt to replace your operating system with the virus it carries. It will then attempt to run off the screen with your vital software. The game ends when only 1 (or 0) of your computers are being productive. Additionally, some computers are connected with network cables. When one computer on a network becomes infected, a spark will be sent down the cable, and will infect the computer on the other end when it reaches there. Clicking the button on one of the little people will cause it to cry out in pain and melt (id software eat your heart out!), dropping the stolen os if it is carrying one. If a computer is running Wingdows or is temporarily off, the os can be dragged back to the computer (or another computer compatible with that os). To extinguish a spark, drag the bucket of water from the upper left corner onto it. The status bar at the bottom tells the following: Number of Bills on/off the screen Number of Computers running their OS/off/Wingdows Level Score OPTIONS
-l n Start at level n. --gui gui Use a specific front end. The possible values are gtk, motif, and athena. Note that some of these may not be compiled into the binary. --size size Play on a field of size x size, instead of the normal 400x400. size must be larger than 400. -v Print version number and exit. -h Print help and exit. When using the GTK gui, all standard GTK options are supported. When using the Athena or Motif GUI, all standard X Intrinsics options are supported. AUTHORS
Main Programmer: Brian Wellington <> Programming & graphics (v2.0 and earlier): Matias Duarte <> COPYING
Copyright (c) 1994-2001 Psychosoft It's FREE! If you want to express your undying gratitude to us for bringing a small bit of meaning into your otherwise pointless existence, you could always send us e-mail. XBill is distributed under the GNU General Public License. Go play the game now! Version 2.1 October 2001 xbill(6)