Discovery / credits: Malvuln - malvuln.com (c) 2022 Original source: https://malvuln.com/advisory/30903ccbc6747c0da5a2775884b78def.txt Contact: malvuln13@gmail.com 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 [åˆ é™¤] [运行] BOOTNXT [åˆ é™¤] [运行] BOOTSECT.BAK [åˆ é™¤] [运行] [Documents and Settings] [dump] pagefile.sys [åˆ é™¤] [运行] [PerfLogs] [Program Files] [Program Files (x86)] [ProgramData] [Recovery] swapfile.sys [åˆ é™¤] [运行] [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 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).