updated readme

payloads/library/remote-access/SSH-remote-access/readme.md

@@ -2,7 +2,32 @@
 ____
 
 ### Concept:
-The Packet Squirrel is a powerful tool, but lets say you wanted persistent access to a network
-for a long period of time. This allows the user to remote into the squirrel to do things like
-upload loot manually, and launch attacks on a network from the inside.
+The Packet Squirrel is a powerful tool for network implants. One operational issue with an implant of this nature
+is that it cannot function beyond the pre-programmed payloads.
 
+Using techniques like Dynamic Port Forwarding (SOCKS/SSH), this payload allows the user to create a Bastion 
+inside a target network. This bastion allows the user to bypass less sophisticated firewall configurations, 
+like so:
+
+    Remote SSH Host         Target Behind Firewall
+          ___                       ___
+         /  /|                     /  /|
+        /__/ |   <====[ X ]====>  /__/ |
+        |--| |                    |--| |
+        | *|/                     | *|/
+
+
+    Remote SSH Host       Packet Squirrel      Target Behind Firewall
+          ___               (inside LAN)            ___
+         /  /|             _______                 /  /|
+        /__/ |   <=====>  /______/`)   <=====>    /__/ |
+        |--| |           (__[__]_)/               |--| |
+        | *|/                                     | *|/
+    
+This assumes SSH is not denied by default on the targets' outbound firewall configuration. One limitation
+is that this tool is susceptible to detection via NIDS. Multiple outbound connections and high-bandwidth 
+utilization raises suspicion of potential attack, however this is only a concern for more sophisticated 
+targets.
+
+
+Use at your own risk. Don't do bad things.