Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '989f7e8d420d8178ee6ce438b1150f2a' = '"%APPDATA%\winrar.scr" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '989f7e8d420d8178ee6ce438b1150f2a' = '"%APPDATA%\winrar.scr" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\989f7e8d420d8178ee6ce438b1150f2a.exe
Creates the following files on removable media:
- <Drive name for removable media>:\989f7e8d420d8178ee6ce438b1150f2a.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\winrar.scr' = '%APPDATA%\winrar.scr:*:Enabled:winrar.scr'
Creates and executes the following:
- '%APPDATA%\winrar.scr' /S
- '%TEMP%\595.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%APPDATA%\winrar.scr" "winrar.scr" ENABLE
Modifies file system :
Creates the following files:
- %APPDATA%\winrar.scr
- %TEMP%\595.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\989f7e8d420d8178ee6ce438b1150f2a.exe
Network activity:
Connects to:
- 'localhost':1177
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
