Problem with the look direction after Instanciate/Rotate

Hi at all helper,

i have a big problem in rotate a GameObject.

The orginal gameobject is a Spider and it's position is 0,0,0 (world center). All the directions are correct:

Blue is the forward direction.

Now i instantiate the Spider and place it anywhere on a large Sphere with

 ...
 
 if(Random.Range(1,3) == 1){
                 this.spawned_mob_list.Add((GameObject)Instantiate( Orginal_Spider));
             }else{
                 this.spawned_mob_list.Add((GameObject)Instantiate( Original_Mobo));
             }
 
             this.GetNewMobPosition(this.spawned_mob_list[this.spawned_mob_list.Count-1].transform);
 
 
 
 
 ...
 
 private Vector3 GetNewMobPosition(Transform t){
         float angle = Random.Range(0,360);
         //float dist  = Random.Range(10,30);
         float dist  = Random.Range(2,3);
 
         t.position = player.position;
         //t.rotation = player.rotation;
         t.RotateAround(t.position, t.up, angle);
         t.position = t.position + t.forward.normalized * dist;
 
         RaycastHit hit = new RaycastHit();
         Vector3 tmp = (new Vector3(0,0,0) - t.position).normalized;
         Vector3 dtmp = (new Vector3(0,0,0) + t.position);
 
         if(Physics.Raycast(transform.position + dtmp, tmp, out hit)){
             t.position = hit.point;
             t.rotation =  Quaternion.FromToRotation(t.up, hit.normal);
 
         }
 
         return t.position;
     }

And i have a function for gravity on a Update() Function:

 protected void DoGravity(){
         if (this.gravitytype == GravityType.NORMAL){
             Vector3 gVector = (new Vector3(0.001f,0.001f,0.001f) - transform.position).normalized;
             transform.rotation = Quaternion.LookRotation(transform.forward, -gVector);
             rigidbody.AddForce(gravity * gVector);
         }
         else{
             int iDefLAyer = gameObject.layer;
             gameObject.layer = 2;
             RaycastHit hit = new RaycastHit();
             Vector3 tmp = (new Vector3(0,0,0) - transform.position).normalized;
             Vector3 dtmp = (new Vector3(0,0,0) + transform.position).normalized;
 
             if(Physics.Raycast(transform.position + dtmp * 0.5f, tmp, out hit)){
                 transform.position = hit.point;
                 transform.rotation = Quaternion.LookRotation(transform.forward, hit.normal);
 
             }else if(Physics.Raycast(transform.position + dtmp * 100, tmp, out hit)){
                 transform.position = hit.point;
                 transform.rotation = Quaternion.LookRotation(transform.forward, hit.normal);
                 
             }
             gameObject.layer = iDefLAyer;
         }
     }

The rotation is already like the original GameObject and has no own rotation

How can i rotate the Spider correct to the hit.normal of the Raycast with it's own rotation?