···

       
752
       
752
       
 
       
            while not shell_ready(timeout_secs=30):

     

       
753
       
753
       
 
       
                self.log("Guest root shell did not produce any data yet...")

     

       
754
       
754
       
 
       


     

       
755
       
755
       
-
       
            self.log(self.shell.recv(1024).decode())

     

       
755
       
755
       
+
       
            while True:

     

       
756
       
756
       
+
       
                chunk = self.shell.recv(1024)

     

       
757
       
757
       
+
       
                self.log(f"Guest shell says: {chunk!r}")

     

       
758
       
758
       
+
       
                # NOTE: for this to work, nothing must be printed after this line!

     

       
759
       
759
       
+
       
                if b"Spawning backdoor root shell..." in chunk:

     

       
760
       
760
       
+
       
                    break

     

       
761
       
761
       
+
       


     

       
756
       
762
       
 
       
            toc = time.time()

     

       
757
       
763
       
 
       


     

       
758
       
764
       
 
       
            self.log("connected to guest root shell")