Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /H'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /Y'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /F'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /I'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /u'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /L'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /N'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /k'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /o'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /R'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /t'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /S'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /p'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /Q'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /w'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /C'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /B'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /j'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /v'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /d'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /e'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /z'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /a'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /X'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /g'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoauve' = '%HOMEPATH%\yoauve.exe /M'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\yoauve.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%\yoauve.exe
Sets the 'hidden' attribute to the following files:
- %HOMEPATH%\yoauve.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%\yoauve.exe'