Odbcconf.exe

Used in Windows for managing ODBC connections

Paths

• C:\Windows\System32\odbcconf.exe
• C:\Windows\SysWOW64\odbcconf.exe

Commands

Execute

Execute DllRegisterServer from DLL specified.

Use case: Execute a DLL file using technique that can evade defensive counter measures

Privileges: User

odbcconf /a {REGSVR {PATH_ABSOLUTE:.dll}}

Execute

Install a driver and load the DLL. Requires administrator privileges.

Use case: Execute dll file using technique that can evade defensive counter measures

Privileges: User

odbcconf INSTALLDRIVER "lolbas-project|Driver={PATH_ABSOLUTE:.dll}|APILevel=2"
odbcconf configsysdsn "lolbas-project" "DSN=lolbas-project"

Execute

Load DLL specified in target .RSP file. See the Code Sample section for an example .RSP file.

Use case: Execute dll file using technique that can evade defensive counter measures

Privileges: Administrator

odbcconf -f {PATH:.rsp}

Detection

• Sigma: https://github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/process_creation/proc_creation_win_odbcconf_response_file.yml
• Sigma: https://github.com/SigmaHQ/sigma/blob/6312dd1d44d309608552105c334948f793e89f48/rules/windows/process_creation/proc_creation_win_odbcconf_response_file_susp.yml
• Elastic: https://github.com/elastic/detection-rules/blob/414d32027632a49fb239abb8fbbb55d3fa8dd861/rules/windows/defense_evasion_unusual_process_network_connection.toml
• Elastic: https://github.com/elastic/detection-rules/blob/414d32027632a49fb239abb8fbbb55d3fa8dd861/rules/windows/defense_evasion_network_connection_from_windows_binary.toml

Resources

• https://gist.github.com/NickTyrer/6ef02ce3fd623483137b45f65017352b
• https://github.com/woanware/application-restriction-bypasses
• https://www.hexacorn.com/blog/2020/08/23/odbcconf-lolbin-trifecta/