71 lines
2.0 KiB
Bash
Executable File
71 lines
2.0 KiB
Bash
Executable File
#!/bin/bash
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# VirusTotal script to add signatures.
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# /!\ Warning. Standard API Key is limited to 4 requests per minutes.
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if [[ -f virustotal.cnf ]]; then
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source virustotal.cnf
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else
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echo "You need to set virustotal.cnf file! Exiting..."
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exit 1
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fi
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file="$1"
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md5=$(md5sum "$file" | cut -d' ' -f1)
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sha256=$(sha256sum "$file" | cut -d' ' -f1)
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size=$(stat -c %s "$file")
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report=$(mktemp /tmp/virustotal.XXX.tmp)
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header=$(mktemp /tmp/virustotal.XXX.tmp)
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# Set to false if you want to keep the virus file.
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removeVirus=true
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# Cleaning on exit.
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trap "rm $report $header" EXIT SIGINT
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apiReturn() {
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header=$1
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grep -q "HTTP/1.1 204 No Content" "$header"
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if [[ $? == 0 ]]; then
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echo "API Error! Limitation of 4 requests per minutes reached."
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exit 1
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fi
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}
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echo "Scanning file ${file}..."
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if [[ ! -f "$file" ]]; then
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echo "File not found!"
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exit 1
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fi
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# Search if not already in Evolix database.
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grep -q "$sha256" "$database"
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if [[ $? == 0 ]]; then
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echo "This file is a virus and already in Evolix database!"
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exit 1
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fi
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# Send the file for scanning to VirusTotal.
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curl https://www.virustotal.com/vtapi/v2/file/scan -F file="@${file}" \
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-F apikey="${apikey}" -o /dev/null -s -D "$header"
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apiReturn "$header"
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# Wait for scan, about 30s, then get the report.
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# If positive, generate a signature.
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sleep 30s
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curl https://www.virustotal.com/vtapi/v2/file/report -F resource="${md5}" \
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-F apikey="${apikey}" -o "$report" -s -D "$header"
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apiReturn "$header"
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positives=$(grep -Eo '"positives": [0-9]+' "$report" | grep -Eo '[0-9]+')
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link=$(grep -Eo 'https://.*/' "$report")
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if [[ "$positives" -ge 2 ]]; then
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echo "Virus detected! (${positives} positives)"
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echo "VirusTotal link: $link"
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echo "Adding signature to Evolix database..."
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echo "${sha256}:${size}:DetectedOnVirusTotal+Evolix" >> "$database"
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if ($removeVirus); then
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rm "$file"
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echo "Removed the virus."
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fi
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else
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echo "No virus detected. Not adding a signature to Evolix database."
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fi
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exit 0
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