Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Microsoft Skype' = '%APPDATA%\SkypeUpgrade.scr'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Microsoft Skype' = '%APPDATA%\SkypeUpgrade.scr'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\Imagem.scr
Malicious functions:
Terminates or attempts to terminate
the following system processes:
- <SYSTEM32>\cmd.exe
the following user processes:
- ecmd.exe
Modifies file system :
Creates the following files:
- %APPDATA%\SkypeUpgrade.scr
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- %APPDATA%\SkypeUpgrade.scr
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: 'Indicator' WindowName: '(null)'
