Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'Explorer.exe CTFMON.EXE'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\autoruns.exe] 'debugger' = '<SYSTEM32>\AUTOCONVE.EXE'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ANLEAP' = '%WINDIR%\ANLEAP.EXE'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'AUTOCONVE' = '<SYSTEM32>\AUTOCONVE.EXE'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\procexp.exe] 'debugger' = '<SYSTEM32>\AUTOCONVE.EXE'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\regedit.exe] 'debugger' = '<SYSTEM32>\AUTOCONVE.EXE'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe] 'debugger' = '<SYSTEM32>\AUTOCONVE.EXE'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mmc.exe] 'debugger' = '<SYSTEM32>\AUTOCONVE.EXE'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msconfig.exe] 'debugger' = '<SYSTEM32>\AUTOCONVE.EXE'
Creates the following files on removable media:
- <Drive name for removable media>:\Autorun.inf
- <Drive name for removable media>:\CTFMON.EXE
- <Drive name for removable media>:\Documents %USERNAME%.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
- file extensions
blocks execution of the following system utilities:
- Windows Task Manager (Taskmgr)
- Registry Editor (RegEdit)
blocks the following features:
- System Restore (SR)
Creates and executes the following:
- "%TEMP%\ctfmon.exe" (downloaded from the Internet)
Executes the following:
- <SYSTEM32>\at.exe 12:00 /interactive /EVERY:m,t,w,th,f,s,su <SYSTEM32>\AUTOCONVE.EXE
- <SYSTEM32>\at.exe /delete /yes
Modifies settings of Windows Explorer:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoRun' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoFind' = '00000001'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer] 'NoFolderOptions' = '00000001'
Forces autoplay for removable media.
Modifies file system :
Creates the following files:
- C:\Autorun.inf
- <SYSTEM32>\AUTOCONVE.EXE
- %TEMP%\ctfmon.exe
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\regedit[1].scr
- %TEMP%\vqbqamv
- %TEMP%\aut1.tmp
- %WINDIR%\ANLEAP.EXE
- C:\CTFMON.EXE
Sets the 'hidden' attribute to the following files:
- C:\Autorun.inf
- %TEMP%\ctfmon.exe
- <Drive name for removable media>:\Autorun.inf
- C:\CTFMON.EXE
- %WINDIR%\ANLEAP.EXE
- <SYSTEM32>\AUTOCONVE.EXE
Deletes the following files:
- <Drive name for removable media>:\Autorun.inf
- %TEMP%\vqbqamv
- %TEMP%\aut1.tmp
Network activity:
Connects to:
- 'h1.##pway.com':80
TCP:
HTTP GET requests:
- h1.##pway.com/up/apps/regedit.scr
UDP:
- DNS ASK h1.##pway.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''