Technical Information
To ensure autorun and distribution
Creates or modifies the following files
- %APPDATA%\microsoft\windows\start menu\programs\startup\oi.vbs
Malicious functions
Injects code into
the following system processes:
- %WINDIR%\microsoft.net\framework\v4.0.30319\installutil.exe
Modifies file system
Creates the following files
- %APPDATA%\oi.exe
Network activity
Connects to
- 'co##############e-chains.prod.autograph.services.mozaws.net':443
UDP
- DNS ASK co##############e-chains.prod.autograph.services.mozaws.net
- 'localhost':53966
- 'localhost':64942
- 'localhost':52378
- 'localhost':51174
- 'localhost':56029
Miscellaneous
Executes the following
- '%WINDIR%\syswow64\cmd.exe' /c ipconfig /release
- '%WINDIR%\syswow64\ipconfig.exe' /release
- '%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' -enc QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEMAOgBcAHUAawBrAGMAbwBcAGMAdwBnAGYAcQB2AGcALgBlAHgAZQA7ACAAQQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAg...
- '%WINDIR%\microsoft.net\framework\v4.0.30319\installutil.exe'
- '%WINDIR%\syswow64\cmd.exe' /c ipconfig /renew
- '%WINDIR%\syswow64\ipconfig.exe' /renew
- '%WINDIR%\syswow64\cmd.exe' /c ipconfig /release' (with hidden window)
- '%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' -enc QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEMAOgBcAHUAawBrAGMAbwBcAGMAdwBnAGYAcQB2AGcALgBlAHgAZQA7ACAAQQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAg...' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /c ipconfig /renew' (with hidden window)
