docs(smbexec): update doc dead link (fortra#1850)

* Update the blog link to web.archive.org

Author: fluffy-kaiju

ChangeLog.md

@@ -722,7 +722,7 @@ As always, thanks a lot to all these contributors that make this library better
       UUIDs used and that information is included as well. This could be helpful when reading a portmap output and to
       develop new functionality to interact against a target interface.
     * `smbexec.py`: Another alternative to psexec. Less capabilities but might work on tight AV environments. Based on the
-      technique described at https://www.optiv.com/blog/owning-computers-without-shell-access. It also
+      technique described at https://web.archive.org/web/20190515131124/https://www.optiv.com/blog/owning-computers-without-shell-access. It also
       supports instantiating a local smbserver to receive the output of the commandos executed for those situations
       where no share is available on the other end.
     * `smbrelayx.py`: It now also listens on port 80 and forwards/reflects the credentials accordingly.

examples/smbexec.py

@@ -11,7 +11,7 @@
 #
 # Description:
 #   A similar approach to psexec w/o using RemComSvc. The technique is described here
-#   https://www.optiv.com/blog/owning-computers-without-shell-access
+#   https://web.archive.org/web/20190515131124/https://www.optiv.com/blog/owning-computers-without-shell-access
 #   Our implementation goes one step further, instantiating a local smbserver to receive the
 #   output of the commands. This is useful in the situation where the target machine does NOT
 #   have a writeable share available.