This isn't a search, it isn't a warrant, and there's no constitutional amendment that outlines the situations in which the feds are allowed to break into my computers.
Also, the typical remedy for a defective warrant is suppression of seized evidence, not criminal prosecution.
The word warrant does not appear on that webpage.
See pages 18 to 21.
See pages 18 to 21.
This is a search. Specifically, the web shells are (1) evidence of a crime, (2) contraband, fruits of crime, or other items illegally possessed, and (3) property designed for use, intended for use, or used in committing a crime. Any one of these three would be a valid basis for a search warrant.