Space parasites

You and a few other Astronauts go on a mission, Sent by NASA to find out what this strange signal (Which was detected by a telescope) was, After 10 days you arrive to the destination, Upon arrival you are met with a parasite infestation. Now it is up to you and team to choose what to do fight back or run (oh btw your team is You, Alex, Maria, Daniel, Max, Alexa and Sarah and don't mind the voice)