Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /w'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /e'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /k'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /D'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /y'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /S'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /n'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /b'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /j'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /L'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /X'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /r'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /q'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /G'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /h'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /M'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /z'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /U'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /i'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /T'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /V'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /o'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /a'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /P'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /c'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'wuean' = '%HOMEPATH%\wuean.exe /F'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\wuean.exe
- <Drive name for removable media>:\Secret.exe
- <Drive name for removable media>:\Sexy.exe
- <Drive name for removable media>:\RCX1.tmp
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%\wuean.exe
Sets the 'hidden' attribute to the following files:
- %HOMEPATH%\wuean.exe
- <Drive name for removable media>:\autorun.inf
Deletes the following files:
- <Drive name for removable media>:\Sexy.exe
Substitutes the following files:
- <Drive name for removable media>:\Sexy.exe
Network activity:
Connects to:
- 'ns#.##ayer1352.com':8000
UDP:
- DNS ASK ns#.##ayer1352.com
Miscellaneous:
Creates and executes the following:
- '%HOMEPATH%\wuean.exe'
