Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'sysdiag.exe' = '%WINDIR%\sysdiag.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'sysdiag.exe' = '%WINDIR%\sysdiag.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\cold\hott\sysdiag.exe
- <Drive name for removable media>:\cold\hott\Desktop.ini
Malicious functions:
Creates and executes the following:
- %WINDIR%\sysdiag.exe
Modifies file system :
Creates the following files:
- %WINDIR%\sysdiag.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\cold\hott\sysdiag.exe
- %WINDIR%\sysdiag.exe
Network activity:
Connects to:
- 'de####y.hopto.org':6699
UDP:
- DNS ASK de####y.hopto.org
- '<Private IP address>':1038
Miscellaneous:
Searches for the following windows:
- ClassName: 'RegEdit_RegEdit' WindowName: ''
- ClassName: 'SysListView32' WindowName: ''
- ClassName: 'Indicator' WindowName: ''
- ClassName: '#32770' WindowName: ''