The warrant is actually quite specific, down to the exact URL paths of the shells to be searched and removed.

See pages 20 and 21 of https://www.justice.gov/opa/press-release/file/1386631/downl...

It's bizarre to think that we should be bound forever more to only do the things that people in 1789 thought appropriate. But it seems to me that they followed the procedure outlined in the 4th amendment; they went to court and got a specific warrant to remove a specific bit of malware from a specified set of servers.

Madison deliberately left many provisions in the Constitution and Bill of Rights open-ended because he wasn't an idiot and knew that the founders could not anticipate everything. Had the FBI acted on its own it would be overreach. They went to court, got a warrant, and did pretty much the minimum required to eliminate the threat.

Good job those aristocrats from 1790's were omnipotent then.