Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /H'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /c'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /Z'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /l'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /N'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /F'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /u'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /E'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /T'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /i'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /V'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /d'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /O'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /M'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /y'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /J'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /K'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /A'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /G'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /B'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /x'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /q'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /s'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /P'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /R'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'liuufa' = '%HOMEPATH%\liuufa.exe /w'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\NjZ.ico
- <Drive name for removable media>:\liuufa.exe
- <Drive name for removable media>:\liuufax.exe
- <Drive name for removable media>:\New Folder.lnk
- <Drive name for removable media>:\Passwords.lnk
- <Drive name for removable media>:\Documents.lnk
- <Drive name for removable media>:\Pictures.lnk
- <Drive name for removable media>:\Music.lnk
- <Drive name for removable media>:\Video.lnk
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Modifies file system:
Creates the following files:
- %HOMEPATH%\liuufa.exe
Sets the 'hidden' attribute to the following files:
- %HOMEPATH%\liuufa.exe
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\NjZ.ico
- <Drive name for removable media>:\liuufa.exe
- <Drive name for removable media>:\liuufax.exe
Network activity:
Connects to:
- 'ns#.##ayer1532.com':8000
UDP:
- DNS ASK ns#.##ayer1532.com
Miscellaneous:
Creates and executes the following:
- '%HOMEPATH%\liuufa.exe'