Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /O'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /Q'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /y'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /M'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /K'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /U'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /W'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /C'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /n'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /j'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /e'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /f'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /g'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /H'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /s'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /Z'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /d'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /v'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /i'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /l'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /A'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /P'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /t'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /r'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /b'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'leuew' = '%HOMEPATH%\leuew.exe /x'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\leuew.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%\leuew.exe
Sets the 'hidden' attribute to the following files:
- %HOMEPATH%\leuew.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%\leuew.exe'
