用java实现恶意域名检测

Java实现恶意域名检测可以使用开源的域名特征提取库，如DNSJava和DomainTools等。以下是一个使用DNSJava库的示例程序，用于检测给定域名是否为恶意域名：

import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Arrays;
import java.util.List;

import org.xbill.DNS.Lookup;
import org.xbill.DNS.Record;
import org.xbill.DNS.SRVRecord;
import org.xbill.DNS.TXTRecord;
import org.xbill.DNS.Type;

public class MalwareDomainDetector {
    private static final List<String> BLACKLIST = Arrays.asList(
        "malware.com",
        "phishing.net",
        "spamhaus.org",
        "zeusbotnet.net"
    );

    public static boolean isMalware(String domain) throws UnknownHostException {
        Lookup lookup = new Lookup(domain, Type.ANY);
        Record[] records = lookup.run();
        if (records == null) {
            // DNS lookup failed
            return false;
        }

        for (Record record : records) {
            if (record instanceof TXTRecord) {
                TXTRecord txtRecord = (TXTRecord) record;
                String txtString = txtRecord.getStrings().get(0);
                if (txtString.contains("malware")) {
                    return true;
                }
            } else if (record instanceof SRVRecord) {
                SRVRecord srvRecord = (SRVRecord) record;
                InetAddress[] addresses = InetAddress.getAllByName(srvRecord.getTarget().toString(true));
                for (InetAddress address : addresses) {
                    if (BLACKLIST.contains(address.getHostAddress())) {
                        return true;
                    }
                }
            }
        }

        return false;
    }
}

此示例程序使用DNSJava库执行DNS查询，并检查TXT记录和SRV记录中是否包含恶意特征。还使用黑名单来检查可能的恶意IP地址。请注意，此示例程序仅用于演示目的。实际应用程序需要更全面的特征和检测技术来提高准确性。