mirror of
https://github.com/Security-Onion-Solutions/securityonion.git
synced 2025-12-06 09:12:45 +01:00
93 lines
3.0 KiB
Bash
Executable File
93 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
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# Copyright 2014,2015,2016,2017,2018,2019,2020,2021 Security Onion Solutions, LLC
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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{%- set ISAIRGAP = salt['pillar.get']('global:airgap', 'False') %}
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echo "Starting to check for yara rule updates at $(date)..."
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output_dir="/opt/so/saltstack/default/salt/strelka/rules"
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mkdir -p $output_dir
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repos="$output_dir/repos.txt"
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newcounter=0
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{% if ISAIRGAP is sameas true %}
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echo "Airgap mode enabled."
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clone_dir="/nsm/repo/rules/strelka"
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repo_name="signature-base"
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mkdir -p /opt/so/saltstack/default/salt/strelka/rules/signature-base
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# Ensure a copy of the license is available for the rules
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[ -f $clone_dir/LICENSE ] && cp $clone_dir/$repo_name/LICENSE $output_dir/$repo_name
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# Copy over rules
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for i in $(find $clone_dir/yara -name "*.yar*"); do
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rule_name=$(echo $i | awk -F '/' '{print $NF}')
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echo "Adding rule: $rule_name..."
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cp $i $output_dir/$repo_name
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((newcounter++))
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done
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echo "Done!"
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if [ "$newcounter" -gt 0 ];then
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echo "$newcounter rules added."
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fi
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{% else %}
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gh_status=$(curl -s -o /dev/null -w "%{http_code}" http://github.com)
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clone_dir="/tmp"
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if [ "$gh_status" == "200" ] || [ "$gh_status" == "301" ]; then
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while IFS= read -r repo; do
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if ! $(echo "$repo" | grep -qE '^#'); then
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# Remove old repo if existing bc of previous error condition or unexpected disruption
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repo_name=`echo $repo | awk -F '/' '{print $NF}'`
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[ -d $output_dir/$repo_name ] && rm -rf $output_dir/$repo_name
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# Clone repo and make appropriate directories for rules
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git clone $repo $clone_dir/$repo_name
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echo "Analyzing rules from $clone_dir/$repo_name..."
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mkdir -p $output_dir/$repo_name
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# Ensure a copy of the license is available for the rules
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[ -f $clone_dir/$repo_name/LICENSE ] && cp $clone_dir/$repo_name/LICENSE $output_dir/$repo_name
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# Copy over rules
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for i in $(find $clone_dir/$repo_name -name "*.yar*"); do
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rule_name=$(echo $i | awk -F '/' '{print $NF}')
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echo "Adding rule: $rule_name..."
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cp $i $output_dir/$repo_name
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((newcounter++))
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done
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rm -rf $clone_dir/$repo_name
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fi
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done < $repos
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echo "Done!"
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if [ "$newcounter" -gt 0 ];then
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echo "$newcounter rules added."
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fi
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else
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echo "Server returned $gh_status status code."
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echo "No connectivity to Github...exiting..."
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exit 1
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fi
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{% endif %}
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echo "Finished rule updates at $(date)..."
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