Androidアプリケーションのパーミッション改竄を検知するスニペット http://visible-true.blogspot.com/2011/12/android.html

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private static List<String> missingPermissions(Context context, String[] expectations) {
    return missingPermissions(context, new ArrayList<String>(Arrays.asList(expectations)));
}
private static List<String> missingPermissions(Context context, List<String> expectations){
    if (context == null || expectations == null) {
        return null;
    }
    try {
        PackageManager pm = context.getPackageManager();
        PackageInfo pi = pm.getPackageInfo(getPackageName(), PackageManager.GET_PERMISSIONS);
        String[] info = pi.requestedPermissions;
        if (info != null) {
            for (String i : info) {
                expectations.remove(i);
            }
        }
        return expectations;
    } catch (NameNotFoundException e) {
        e.printStackTrace();
    }
    return null;
}