Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '2ad8d984bfc960b9426eecbec660a9bc' = '"%TEMP%\crss.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '2ad8d984bfc960b9426eecbec660a9bc' = '"%TEMP%\crss.exe" ..'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\crss.exe' = '%TEMP%\crss.exe:*:Enabled:crss.exe'
Creates and executes the following:
- '%TEMP%\crss.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\crss.exe" "crss.exe" ENABLE
Modifies file system :
Creates the following files:
- %TEMP%\crss.exe
Network activity:
Connects to:
- 'ok####23.zapto.org':81
UDP:
- DNS ASK ok####23.zapto.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
