Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'J_Y' = '%WINDIR%\J_Y.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'Explorer.exe J_Y.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\J_Y.Jpg
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\J_Y.WoRm.Jpg
Malicious functions:
Creates and executes the following:
- %WINDIR%\J-Y.WoRm.Jpg
Modifies file system :
Creates the following files:
- %WINDIR%\AuToRuN.InF
- %WINDIR%\J_Y.Jpg
- C:\J_Y.WoRm.Jpg
- C:\J_Y.Jpg
- C:\autorun.inf
- %WINDIR%\J_Y.exe
- %WINDIR%\J_Y.WoRm.Jpg
- %TEMP%\aut1.tmp
- %TEMP%\aut2.tmp
- %WINDIR%\J-Y.WoRm.Jpg
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\J_Y.WoRm.Jpg
- <Drive name for removable media>:\J_Y.Jpg
- C:\autorun.inf
- C:\J_Y.WoRm.Jpg
- C:\J_Y.Jpg
Deletes the following files:
- C:\J_Y.Jpg
- C:\autorun.inf
- <Drive name for removable media>:\J_Y.WoRm.Jpg
- <Drive name for removable media>:\J_Y.Jpg
- <Drive name for removable media>:\autorun.inf
- C:\J_Y.WoRm.Jpg
- %TEMP%\aut2.tmp
- %TEMP%\aut1.tmp
- %WINDIR%\J_Y.WoRm.Jpg
- %WINDIR%\AuToRuN.InF
- %WINDIR%\J_Y.exe
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'Indicator' WindowName: ''
