Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'd4a008e97a6e9e511f1ca0f3e80eaa7d' = '"%TEMP%\sovost.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'd4a008e97a6e9e511f1ca0f3e80eaa7d' = '"%TEMP%\sovost.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\d4a008e97a6e9e511f1ca0f3e80eaa7d.exe
Creates the following files on removable media:
- <Drive name for removable media>:\d4a008e97a6e9e511f1ca0f3e80eaa7d.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\sovost.exe' = '%TEMP%\sovost.exe:*:Enabled:sovost.exe'
Creates and executes the following:
- '%TEMP%\sovost.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\sovost.exe" "sovost.exe" ENABLE
Modifies file system :
Creates the following files:
- %TEMP%\sovost.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\d4a008e97a6e9e511f1ca0f3e80eaa7d.exe
Network activity:
Connects to:
- 'ra####18.no-ip.biz':55
UDP:
- DNS ASK ra####18.no-ip.biz
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
