DexguardEmuDetectionPropertyHash.java

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.math.BigInteger;
import java.nio.charset.Charset;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;

public class DexguardEmuDetectionPropertyHash {
    static Set<BigInteger> chkset = new HashSet<>();
    static {
        chkset.add(new BigInteger("86701cb958c69d64cd59322dfebacede", 16));
        chkset.add(new BigInteger("19385aafbb452f39b5079513f668bbeb", 16));
        chkset.add(new BigInteger("24ad686ec83d904347c5a916acbe1779", 16));
        chkset.add(new BigInteger("b8c8255febc6c46a3e43b369225ded3e", 16));
        chkset.add(new BigInteger("d76386ddf2c96a9a92fc4bc8f829173c", 16));
        chkset.add(new BigInteger("15fed45d5ca405da4e6aa9805daf2fbf", 16));  // unused
    }

    public static void main(String[] args) throws Exception {
        Map<BigInteger, String> map = new HashMap<>();
        try(BufferedReader reader = new BufferedReader(new FileReader(new File(args[0])))) {
            String line;
            while((line = reader.readLine()) != null) {
                byte[] hash = md5OfString(line);
                if(hash == null) {
                    break;
                }
                map.put(new BigInteger(1, hash), line);
            }
        }
        map.keySet().retainAll(chkset);

        for(Entry<BigInteger, String> e: map.entrySet()) {
            System.out.format("Matched entry: %s (key: %s)\n", e.getValue(), e.getKey());
        }
    }

    static byte[] md5OfString(String line) {
        try {
            MessageDigest md = MessageDigest.getInstance("MD5");
            md.update(line.getBytes(Charset.forName("UTF-8")));
            return md.digest();
        }
        catch(NoSuchAlgorithmException unused_ex) {
            return new byte[0];
        }
    }
}