[cbk1994]

No, you can't see what programs a person has open. In theory you can use cheatwindows (may or may not still work, I know Stefan added a global list a while back) but in reality it's a waste of time because recent tools will easily evade this.

Look at a player's list of weapons (clientside). Are there weapons you don't recognize and that aren't from Login? There are plenty of other ways to inject code, though, so don't waste your time here either.