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########################################################
# Please file all bug reports, patches, and feature
# requests under:
# https://sourceforge.net/p/logwatch/_list/tickets
# and copy:
# Osma Ahvenlampi <oa@iki.fi>
# Help requests and discusion can be filed under:
# https://sourceforge.net/p/logwatch/discussion/
########################################################
########################################################
# This was written and is maintained by:
# Osma Ahvenlampi <oa@iki.fi>
########################################################
#######################################################
## Copyright (c) 2008 Osma Ahvenlampi
## Covered under the included MIT/X-Consortium License:
## http://www.opensource.org/licenses/mit-license.php
## All modifications and contributions by other persons to
## this script are assumed to have been donated to the
## Logwatch project and thus assume the above copyright
## and licensing terms. If you want to make contributions
## under your own copyright or a different license this
## must be explicitly stated in the contribution an the
## Logwatch project reserves the right to not accept such
## contributions. If you have made significant
## contributions to this script and want to claim
## copyright please contact logwatch-devel@lists.sourceforge.net.
#########################################################
use Logwatch ':ip';
use strict;
my $Detail = $ENV{'LOGWATCH_DETAIL_LEVEL'} || 0;
#Init String Containers
my ($host, $list, $mode, $prev, $port, $proto, $scan);
#Init Hashes
my (
%Blocked, %Exclude, %Ignored,
%Scans, %Unknown
);
while (defined(my $ThisLine = <STDIN>)) {
chomp($ThisLine);
next if ($ThisLine eq "");
if ( ( $ThisLine =~ /Starting portsentry/ ) or
( $ThisLine =~ /PortSentry is now active/ ) or
( $ThisLine =~ /Psionic PortSentry .* (starting|shutting)/ ) or
( $ThisLine =~ /portsentry shutdown/ ) ) {
# don't care
} elsif( ($scan,$host,$proto,$port) = ( $ThisLine =~ m|attackalert: (.+) scan from host: [^/]+/(\S+) to (\w+) port: (\d+)| ) ){
$host = LookupIP($host);
$Scans{$scan}{$host}{$port}++;
} elsif ( ($host) = ( $ThisLine =~ /Host (\S+) has been blocked/ ) ){
$host = LookupIP($host);
$Blocked{$host}++;
} elsif( ($host) = ( $ThisLine =~ /Host: (\S+) is already blocked/ ) ){
# ignore
} elsif( ($mode,$proto,$port) = ( $ThisLine =~ /: (.+) scan detection mode activated. Ignored (\w+) port: (\d+)/ ) ){
$Ignored{$mode}{$proto}{$port}++;
} elsif( ($mode,$port) = ( $ThisLine =~ /: (.+) mode will manually exclude port: (\d+)/ ) ){
$Exclude{$mode}{$port}++;
} else{
$Unknown{$ThisLine}++;
}
}
if (keys %Scans) {
print "\nWarning: Portscans detected";
foreach my $mode (sort {$a cmp $b} keys %Scans) {
print "\n " . $mode . " from:";
foreach my $host (sort {$a cmp $b} keys %{$Scans{$mode}}) {
print "\n " . $host . ": ports:";
my $ports = $prev = $list = undef;
foreach my $port (sort {$a <=> $b} keys %{$Scans{$mode}{$host}}) {
if ($prev && ($port-1) == $prev) {
$ports .= "-" if (!$list);
$list = 1;
} elsif ($list) {
$ports .= "$prev $port";
$list = undef;
} else {
$ports .= " $port";
}
$prev = $port;
}
$ports .= $prev if ($list);
# don't display the port list if it doesn't fit on one line
if (length($ports) > 55 && $Detail < 10) {
print " (too many, set Detail to High for complete list)";
} else {
print $ports;
}
}
}
print "\n";
}
if (keys %Blocked) {
print "\n";
foreach my $host (keys %Blocked) {
print "Warning: Blocked route from/to $host $Blocked{$host} times(s).\n";
}
}
if ( ($Detail >= 10) and (keys %Ignored) ) {
print "\nIgnored following ports";
foreach my $mode (sort {$a cmp $b} keys %Ignored) {
print "\n " . $mode . ":";
foreach my $proto (sort {$a cmp $b} keys %{$Ignored{$mode}}) {
print "\n " . $proto . ": ports:";
my $prev = $list = undef;
foreach $port (sort {$a <=> $b} keys %{$Ignored{$mode}{$proto}}) {
if ($prev && ($port-1) == $prev) {
print "-" if (!$list);
$list = 1;
} elsif ($list) {
print "$prev $port";
$list = undef;
} else {
print " $port";
}
$prev = $port;
}
print $prev if ($list);
}
}
print "\n";
}
if ( ($Detail >= 10) and (keys %Exclude) ) {
print "\nExcluded following ports";
foreach my $mode (sort {$a cmp $b} keys %Exclude) {
print "\n " . $mode . ": ports:";
my $prev = $list = undef;
foreach my $port (sort {$a <=> $b} keys %{$Exclude{$mode}}) {
if ($prev && ($port-1) == $prev) {
print "-" if (!$list);
$list = 1;
} elsif ($list) {
print "$prev $port";
$list = undef;
} else {
print " $port";
}
$prev = $port;
}
print $prev if ($list);
}
print "\n";
}
if ( ($Detail >= 5) and (keys %Unknown) ) {
print "\n**Unmatched entries**\n";
foreach my $ThisOne (sort {$a cmp $b} keys %Unknown) {
print $Unknown{$ThisOne} . " Time(s): " . $ThisOne . "\n";
}
}
exit(0);
# vi: shiftwidth=3 tabstop=3 syntax=perl et
# Local Variables:
# mode: perl
# perl-indent-level: 3
# indent-tabs-mode: nil
# End:
|
