Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '4c9d72f7e47737ab07334406dc420a2c' = '"%TEMP%\rastac.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '4c9d72f7e47737ab07334406dc420a2c' = '"%TEMP%\rastac.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\4c9d72f7e47737ab07334406dc420a2c.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\rastac.exe' = '%TEMP%\rastac.exe:*:Enabled:rastac.exe'
Creates and executes the following:
- '%TEMP%\rastac.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\rastac.exe" "rastac.exe" ENABLE
Modifies file system :
Creates the following files:
- %TEMP%\rastac.exe
Network activity:
Connects to:
- 'ra#####ng.no-ip.info':1177
UDP:
- DNS ASK ra#####ng.no-ip.info
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
