So a friend of ours is recieving text messages from my girlfriend's phone number with small downloadable attachments, anywhere from 90-400kb in size. These messages do not appear on my girlfriends iPhone 6s, or on her koodo self serve at all. Our friend's bill shows them incoming, but doesn't show a phone number, as if its blocked. This happens many times throughout the day. We have run a scan with avira on the iphone and turned up nothing. My girlfriend powered down her phone today, except between 4 and 4:20pm. Our friend received one of these messages at 4:31. Anyone have any ideas what's going on here?