Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'dwm.exe' = '"%ALLUSERSPROFILE%\dwm.exe" ..'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'dwm.exe' = '"%ALLUSERSPROFILE%\dwm.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\dwm.exe
Creates the following files on removable media:
- <Drive name for removable media>:\dwm.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Executes the following:
- '<SYSTEM32>\taskkill.exe' /F /IM wscript.exe
- '<SYSTEM32>\taskkill.exe' /F /IM cmd.exe
Terminates or attempts to terminate
the following system processes:
- <SYSTEM32>\cmd.exe
Modifies file system:
Creates the following files:
- <SYSTEM32>\ctfmon.exe.new
- %ALLUSERSPROFILE%\dwm.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\dwm.exe
- %ALLUSERSPROFILE%\dwm.exe
Moves the following system files:
- from <SYSTEM32>\ctfmon.exe to %TEMP%\86651
Moves the following files:
- from <STUBS_DIR>\ecmd\ecmd.exe to %TEMP%\75745
- from %HOMEPATH%\Start Menu\Programs\Startup\desktop.ini to %TEMP%\28115
- from %HOMEPATH%\Start Menu\Programs\Startup\Shortcut to startup_local.lnk to %TEMP%\40676
- from %HOMEPATH%\Start Menu\Programs\Startup\desktop.ini to %TEMP%\76284
- from %HOMEPATH%\Start Menu\Programs\Startup\Shortcut to startup_local.lnk to %TEMP%\89110
Network activity:
Connects to:
- 'ne####zon.ddns.net':2222
UDP:
- DNS ASK ne####zon.ddns.net
Miscellaneous:
Searches for the following windows:
- ClassName: '' WindowName: ''
- ClassName: '' WindowName: 'AngarCl'
Creates and executes the following:
- '%ALLUSERSPROFILE%\dwm.exe' and Settings\\All Users\\dwm.exe\"
Executes the following:
- '<SYSTEM32>\schtasks.exe' /Delete /tn NYANP /F
- '<SYSTEM32>\schtasks.exe' /create /tn NYANP /tr \"C:\\bf32d3b0\\<File name>.exe\" /sc minute /mo 5
- '<SYSTEM32>\schtasks.exe' /create /tn NYANP /tr \"C:\\Documents and Settings\\All Users\\dwm.exe\" /sc minute /mo 5