Merger & Acquisition Due Diligence

# Set up M&A assessment
TARGET_COMPANY="AcquiredCorp"
DOMAINS="acquired.com,subsidiary.acquired.com"
MA_DIR="ma_assessment_${TARGET_COMPANY}_$(date +%Y%m%d)"

mkdir -p "$MA_DIR"/{discovery,analysis,reports,evidence}
cd "$MA_DIR"

# Create domain list
echo "$DOMAINS" | tr ',' '\n' > discovery/domains.txt

# Comprehensive subdomain discovery
while IFS= read -r domain; do
    echo "🔍 Comprehensive discovery for: $domain"
    
    # Multiple subdomain sources
    subfinder -d "$domain" -all -silent > "discovery/${domain}_subfinder.txt"
    amass enum -active -d "$domain" -brute -o "discovery/${domain}_amass.txt"
    
    # Certificate transparency
    curl -s "https://crt.sh/?q=%.${domain}&output=json" | jq -r '.[].name_value' | sort -u > "discovery/${domain}_ct.txt"
    
    # DNS brute force
    dnsrecon -d "$domain" -D /usr/share/wordlists/dnsmap.txt -t brt > "discovery/${domain}_dnsrecon.txt"
    
    # Combine all sources
    cat discovery/${domain}_*.txt | sort -u > "discovery/${domain}_all_subdomains.txt"
    
done < discovery/domains.txt

# Consolidate all findings
cat discovery/*_all_subdomains.txt | sort -u > discovery/all_assets.txt