Free virus checker software for linux

Your computer has been invaded! Dozens of little viruses are pouring in via security holes in Microsoft Internet Explorer, Microsoft Outlook, Microsoft MSN Messenger and Microsoft Recycle Bin!!
Using your trusty mouse you must shoot the buggers before they can destroy your files! Some will steal them from their home directories and take them back to their security hole.
Others will just eat them right there on the spot! See how long you and your computer can survive the onslaught!
Main features:
- 3 different virus types.
- Builds directories and files to protect based on your computer!
- Increasing difficulty level
- Highscore table
- 3 difficulty settings

gURLChecker is a graphical web links checker for GNU/Linux and other POSIX OS. gURLChecker can work on a whole site, a single local page or a browser bookmarks file.

The Qmail virus scanner (QScan) is a mail filter for Qmail that scans incoming messages using the Sophos Antivirus engine, immediately rejecting infected content.

It is designed to be minimalistic, yet extremely fast and secure, and uses multiple pipes instead of the traditional temporary files and privilege separation. It works with non-native versions of the virus scanner like under OpenBSD with Linux or FreeBSD emulation.


You must create a temporary directory to extract MIME attachments, and replace Qmails original qmail-queue program with Qscan. Quick way to achieve this for the impatients :

mkdir /var/qmail/qscan
chmod 700 /var/qmail/qscan
chown qmaild:qmail /var/qmail/qscan
ln /var/qmail/bin/qmail-queue /var/qmail/bin/qmail-queue-old

Now, lets compile and install Qscan :

./configure --help

./configure [your beloved flags]

make install-strip

The last step is to replace the original qmail-queue program with our filter :

rm /var/qmail/bin/qmail-queue
ln -s /usr/local/sbin/qscan /var/qmail/bin/qmail-queue

Depending on your local configuration, it may be needed or not, but start with doing it :

chown qmaild:qmail /usr/local/sbin/qscan
chmod 6711 /usr/local/sbin/qscan

After testing, if everythings ok for you, remove the setuid bit :

chown 0:0 /usr/local/sbin/qscan
chmod 711 /usr/local/sbin/qscan

SMTP Relay Checker is a fully configurable, multithreaded open mail relay scanner. It supports scanning of IP blocks, and can print the results to a Web page.
SMTP Relay Checker is intended for Systems Administrators to check IP blocks under their control.
Compilation / Installation
To build SmtpRC please run "make" in the package directory. This will build the package and create the binary "smtprc". To install the package, please run "make install".
By Default, the binary will be installed into /usr/local/bin/, configuration files will be installed under /usr/local/etc/smtprc/ and all documentation files will be installed under /usr/local/share/doc/smtprc/. Please see below for a full list of installed files.
/usr/local/bin/smtprc
/usr/local/bin/gsmtprc
/usr/local/etc/smtprc/auto.conf
/usr/local/etc/smtprc/email.tmpl
/usr/local/etc/smtprc/rcheck.conf
/usr/local/share/doc/smtprc/README
/usr/local/share/doc/smtprc/FAQ
/usr/local/man/man1/smtprc.1
/usr/local/man/man1/gsmtprc.1
Using Smtprc
SmtpRC can be run by specifying options on the command line, or by configuring an "auto configuration" file and letting SmtpRC parse the options from there. The latter is recommended.
When SmtpRC is installed, a example "auto configuration" file is installed in "/usr/local/etc/smtprc/auto.conf". Edit this file, changing the values to suit your specific network requirements and run smtprc with the following option (a full list of options
is detailed below):
"/usr/local/bin/smtprc -j /usr/local/etc/smtprc/auto.conf"
To be sure that a mailserver relays third-party email, SmtpRC will attempt to relay mail to an address specified. It is recommended that this address is a mailbox on the local machine that is being used to run SmtpRC - pop support is a planned feature, but for now, SmtpRC only supports checking local mailboxes (mbox and Maildir). Create a new user account (smtprc), specify the email address for this account, and the local mailbox (on the command line or in the "auto configuration" file), and SmtpRC will attempt to relay emails to this address and check for recieved emails after scanning.
There is also a GUI interface to smtprc (gsmtprc) that is installed in /usr/local/bin. This requires Perl Tk to run.
Enhancements:
- Fixes a race condition between the master and reaper threads.

Kvirus project is a board/puzzle game for the KDE Environment.

Kvirus is a board game for the KDE Environment and a clone of Ataxxlet originally written in Java.

The goal is to copy or jump your virus to eat up the enemy virus. Kvirus provides a cute interface with hours of fun.

Aegis project is a virus scanner for Linux, Unix and Windows with a simple and intuitive user interface.

Aegis supports scanning of subdirectories, hidden files and .zip and .tar archive files, and drag-and-drop of files from the Nautilus file browser, or your Gnome desktop. When a virus is detected you can choose to delete, quarantine or rename the file.

XML::Checker is a Perl module for validating XML.

SYNOPSIS

XML::Checker::Parser - an XML::Parser that validates at parse time
XML::DOM::ValParser - an XML::DOM::Parser that validates at parse time
(Some of the package names may change! This is only an alpha release...)

XML::Checker can be used in different ways to validate XML. See the manual pages of XML::Checker::Parser and XML::DOM::ValParser for more information.
This document only describes common topics like error handling and the XML::Checker class itself.

WARNING: Not all errors are currently checked. Almost everything is subject to change. Some reported errors may not be real errors. For production code, it is recommended that you use XML::LibXML or XML::GDOME instead of XML::Checker. Both modules share the same DTD validation code with libxml2 and XML::LibXML is easier to install.