u/Holiday-Composer-831

My partner has been trying to find this movie for a while, but cannot remember a lot of details. One of the actors is a blonde guy from home and away and it features a desert setting with aliens that have shells. Likely horror, it features hazmat suits and has a scene where the group is heading for a cave and the creature is following them from a distance in the last 20 mins. It has an infection theme, with a scratch or bite from the creatures leading to becoming one of them. My partner says they would be able to pinpoint it if she could find a picture of the creature, as it is very memorable to her. I've had no luck and I've been searching for a while, some help would be greatly appreciated.