Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'de5c2b42bcc23ee3453d' = '%HOMEPATH%\Templates\Microsoft\Skype.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\Skype.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Creates and executes the following:
- '%HOMEPATH%\Templates\Microsoft\Skype.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall set opmode disable
Modifies file system :
Creates the following files:
- %HOMEPATH%\My Documents\Downloads\Online Services.exe
- %HOMEPATH%\My Documents\Downloads\Outlook Express.exe
- %HOMEPATH%\My Documents\Downloads\Reference Assemblies.exe
- %HOMEPATH%\My Documents\Downloads\MSN.exe
- %HOMEPATH%\My Documents\Downloads\MSN Gaming Zone.exe
- %HOMEPATH%\My Documents\Downloads\NetMeeting.exe
- %HOMEPATH%\My Documents\Downloads\Uninstall Information.exe
- %HOMEPATH%\My Documents\Downloads\xerox.exe
- %TEMP%\dw.log
- %TEMP%\2D96E.dmp
- %HOMEPATH%\My Documents\Downloads\Windows Media Player.exe
- %HOMEPATH%\My Documents\Downloads\Windows NT.exe
- %HOMEPATH%\My Documents\Downloads\WindowsUpdate.exe
- C:\autorun.inf
- %HOMEPATH%\My Documents\Downloads\Common Files.exe
- %HOMEPATH%\My Documents\Downloads\ComPlus Applications.exe
- %HOMEPATH%\Templates\Microsoft\Skype.exe
- %TEMP%\melt.txt
- C:\Skype.exe
- %HOMEPATH%\My Documents\Downloads\FireFox.exe
- %HOMEPATH%\My Documents\Downloads\Microsoft.NET.exe
- %HOMEPATH%\My Documents\Downloads\Movie Maker.exe
- %HOMEPATH%\My Documents\Downloads\MSBuild.exe
- %HOMEPATH%\My Documents\Downloads\Internet Explorer.exe
- %HOMEPATH%\My Documents\Downloads\Messenger.exe
- %HOMEPATH%\My Documents\Downloads\microsoft frontpage.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\Skype.exe
- C:\autorun.inf
- C:\Skype.exe
Deletes itself.
Network activity:
Connects to:
- 'ag###.no-ip.org':1144
UDP:
- DNS ASK ag###.no-ip.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: 'Indicator' WindowName: '(null)'
