Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Microsoft® Windows System' = '%HOMEPATH%\R-8-38-4354-4125-8436\winvns.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\windrvs32.exe
- <Drive name for removable media>:\autorun.inf
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%HOMEPATH%\R-8-38-4354-4125-8436\winvns.exe' = '%HOMEPATH%\R-8-38-4354-4125-8436\winvns.exe:*:Enabled:Microsoft® Windows System'
Creates and executes the following:
- %HOMEPATH%\R-8-38-4354-4125-8436\winvns.exe
Modifies file system :
Creates the following files:
- %HOMEPATH%\R-8-38-4354-4125-8436\winvns.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\windrvs32.exe
- %HOMEPATH%\R-8-38-4354-4125-8436\winvns.exe
Network activity:
Connects to:
- 'ro#.##shells.net':6662
UDP:
- DNS ASK ro#.##shells.net
- '<Private IP address>':1036
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
