Free pop3 virus scanner proxy software for linux

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

AntiVirus Scanner is an anti-virus scanner for Endeavour Mark II that uses the ClamAV library (libclamav).

AntiVirus Scanner allows you to create a list of scan items for frequently scanned locations and features easy virus database updating, all in a simple GUI environment.

ScannerDaemon is the virus scanner of the OpenAntivirus project. You can send a filename to it via simple TCP and it will scan the file for viruses and tell you if the file is infected or not.
The ScannerDaemon listens on localhosts port 8127 for absolute filenames and absolute directorynames. It scans the files/all files in the directory and reports OK if no virus has been found or FOUND: if a virus has been detected.
You can start the ScannerDaemon simply by typing:
java -jar ScannerDaemon.jar
If you did not forget the Credo-files, it should come up and listen on port 8127. You can also give the name of the directory as a command-line parameter, like
java -jar ScannerDaemon.jar -credo.directory
Enhancements:
- Adaptions to new listener and filter scheme
- Bugfix: allow more than one signature file in one credo file
- Bugfix: close files used by UPXFilter
- Bugfix: wrong failure transitions
- Improvement: less memory consumption for nodes
- Improvement: UPXFilter scans uncompressed and compressed file

TCP port scanner is a network scanner for Linux.

Installation:

1. Install - become root and gunzip/tar tcpscan-X-Y-Z.tar.gz.
2. Type ./confugure , make
3. Type install
4. Enjoy and try type tcpscan localhost
5. To get help - run tcpscan without parametres.

Usage:

tcpscan [-f] [hostname || IP_address]
tcpscan [-f] [first_IP_address] [last_IP_address]

Update Scanner provides an extension which monitors web pages for updates.

Right-click on any page, and select "Scan Page for Updates".

You can choose how often the site will be checked for changes, and whether to ignore minor updates.

When a change is detected, a notification window is displayed. Click the blue up-arrow on the bottom status bar to show the Update Scanner sidebar. Webpages that have been updated are shown in bold.

Double-click any item to open the website.

Nmap::Scanner is a Perl module to perform and manipulate nmap scans using perl.

SYNOPSIS

Perl extension for performing nmap (www.insecure.org/nmap) scans.

use Nmap::Scanner;

# Batch scan method

my $scanner = new Nmap::Scanner;
$scanner->tcp_syn_scan();
$scanner->add_scan_port(1-1024);
$scanner->add_scan_port(8080);
$scanner->guess_os();
$scanner->max_rtt_timeout(200);
$scanner->add_target(some.host.out.there.com.org);

# $results is an instance of Nmap::Scanner::Backend::Results
my $results = $scanner->scan();

# Print the results out as an well-formatted XML document
print $results->as_xml();

# Event scan method using *new* easier way to set scan options.

my $scanner = new Nmap::Scanner;
$scanner->register_scan_started_event(&scan_started);
$scanner->register_port_found_event(&port_found);
$scanner->scan(-sS -p 1-1024 -O --max-rtt-timeout 200 somehost.org.net.it);

sub scan_started {
my $self = shift;
my $host = shift;

my $hostname = $host->name();
my $addresses = join(,, map {$_->address()} $host->addresses());
my $status = $host->status();

print "$hostname ($addresses) is $statusn";
}

sub port_found {
my $self = shift;
my $host = shift;
my $port = shift;

my $name = $host->name();
my $addresses = join(,, map {$_->addr()} $host->addresses());

print "On host $name ($addresses), found ",
$port->state()," port ",
join(/,$port->protocol(),$port->portid()),"n";

}

This set of modules provides perl class wrappers for the network mapper (nmap) scanning tool (see http://www.insecure.org/nmap/). Using these modules, a developer, network administrator, or other techie can create perl routines or classes which can be used to automate and integrate nmap scans elegantly into new and existing perl scripts.

If you dont have nmap installed, you will need to download it BEFORE you can use these modules. Get it from http://www.insecure.org/nmap/. You will need nmap 3.10+ installed to use all the features of this module.

MailScanner is an email virus scanner, vulnerability protector, and spam tagger. It supports the Postfix, Sendmail, Exim, Qmail, and ZMailer MTAs, and the Sophos, McAfee, F-Prot, F-Secure, CommandAV, InoculateIT, Inoculan, eTrust, Kaspersky, Nod32, AntiVir, BitDefender, RAV, Panda, DrWeb, ClamAV, and other anti-virus scanners.

MailScanner uses SpamAssassin for highly successful spam identification, and is designed to handle denial of service attacks. It will detect password-protected zip files and apply filename checking to their contents.

It is very easy to install, requires no changes at all to your sendmail.cf file, is designed to be lightweight, and wont grind your mail system to a halt with its load. It can be integrated into any email system, regardless of the software in use.