Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '<SYSTEM32>\Userinit.exe,%TEMP%\svchost.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\Cleaner.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
- file extensions
Creates and executes the following:
- '<DRIVERS>\tmp.exe'
- '<DRIVERS>\tmp.exe' (downloaded from the Internet)
Executes the following:
- '<SYSTEM32>\wscript.exe' "<SYSTEM32>\x4x.vbs"
Modifies file system :
Creates the following files:
- <SYSTEM32>\x4x.vbs
- C:\Cleaner.exe
- C:\autorun.inf
- <DRIVERS>\tmp.exe
- %TEMP%\svchost.exe
- %WINDIR%\sp.htm
- %TEMP%\desktop.ini
Sets the 'hidden' attribute to the following files:
- C:\Cleaner.exe
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\Cleaner.exe
- %TEMP%\svchost.exe
- %TEMP%\desktop.ini
- C:\autorun.inf
Deletes the following files:
- <SYSTEM32>\x4x.vbs
Network activity:
Connects to:
- 's1.###ectxex.com':80
- 'wp#d':80
TCP:
HTTP GET requests:
- s1.###ectxex.com/uploads/jWYNfM5euFGrKWBVltmIAskRpAH0DuAhAj8XY0B4TVFMoNyZWXhRH-dZuzjRfb59PA38HuVfR6ouA6pPVaZRcyD3S9XpJaDo_44w
- wp#d/wpad.dat
UDP:
- DNS ASK s1.###ectxex.com
- DNS ASK wp#d
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
