Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Terminal Server\Install\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Services' = 'csrs.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Windows Services' = 'csrs.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\RECYCLER\S-1-6-21-2434476501-1644491937-600003330-1213\usb_driver.com
- <Drive name for removable media>:\RECYCLER\S-1-6-21-2434476501-1644491937-600003330-1213\Desktop.ini
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<Full path to virus>' = '<Full path to virus>:*:Enabled:Windows Services'
Creates and executes the following:
- %WINDIR%\csrs.exe
Injects code into
the following system processes:
- %WINDIR%\Explorer.EXE
Modifies file system :
Creates the following files:
- %WINDIR%\csrs.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\RECYCLER\S-1-6-21-2434476501-1644491937-600003330-1213\usb_driver.com
- %WINDIR%\csrs.exe
Network activity:
Connects to:
- 'oz###.ro0t.tk':6667
UDP:
- DNS ASK oz###.ro0t.tk
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''