As some some anti-virus tools.
Norton AV used to "clean up" my build folders of exes because it was classifying the newly built exe as viruses because they were not on a whitelist.
I used to develop a java app during an internship on a computer I was not even supposed to be admin on. McAfee AV crapware was randomly deciding that my app .jar was in need of being removed and there was nothing I could do without going against company policy except rebuild and hope this time it would go well.