Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/0ba104d752eb63194c356c309196c710.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Mhtserv.b
Vulnerability: Missing Authentication
Description: Mhtserv.b listens on TCP port 1043, apparently there is no authentication required to access this backdoor. Accessing the backdoor using telnet you are greeted with a "Command" prompt, issuing a lowercase "L" char will get you a dir listing of system32.
Type: PE32
MD5: 0ba104d752eb63194c356c309196c710
Vuln ID: MVID-2021-0059
Disclosure: 01/28/2021 

Exploit/PoC:
TELNET [MALWARE_HOST_IP] 1043

Command>


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