[Shank]

I think it's quite obvious that the author is very well aware of how to implement DRM in such a way that it can't be circumvented, but it easily enters the territory of whether or not he would actually gain users from it.

Cobalt Strike isn't exactly a $100 copy of Office - potential users who are going to use it to its full extent are going to be willing to pay the steep cost of entry as it is.

In other words, while it would be possible to guard against piracy, the end result wouldn't be more sales of Cobalt Strike.

[enscr]

Oh, I was asking that for my knowledge. Since you can easily patch all licensing methods on a binary (I guess including checksums), the only way to verify integrity is to compare it with a trusted copy at the authors home.

[eru]

Why don't you patch away that check?