Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /u'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /o'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /l'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /B'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /f'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /c'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /n'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /X'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /Q'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /e'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /V'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /g'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /r'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /P'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /j'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /A'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /t'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /I'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /W'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /D'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /Z'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /H'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /M'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /s'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'bueufe' = '%HOMEPATH%\bueufe.exe /k'
Creates the following files on removable media:
- <Drive name for removable media>:\Pictures.lnk
- <Drive name for removable media>:\Documents.lnk
- <Drive name for removable media>:\Video.lnk
- <Drive name for removable media>:\Music.lnk
- <Drive name for removable media>:\Passwords.lnk
- <Drive name for removable media>:\bueufe.exe
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\New Folder.lnk
- <Drive name for removable media>:\bueufex.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Creates and executes the following:
- '%HOMEPATH%\btlop.exe'
- '%HOMEPATH%\ctlop.exe'
- '%HOMEPATH%\atlop.exe'
- '%HOMEPATH%\bueufe.exe'
Executes the following:
- '<SYSTEM32>\cmd.exe' /c ""%HOMEPATH%\a.bat" "
- '<SYSTEM32>\cmd.exe' /c ""%TEMP%\7ZSfx000.cmd" "
- '<SYSTEM32>\tasklist.exe'
- '<SYSTEM32>\svchost.exe'
Injects code into
the following system processes:
- <SYSTEM32>\svchost.exe
the following user processes:
- firefox.exe
- iexplore.exe
- safari.exe
- msnmsgr.exe
- ICQ.exe
- YahooMessenger.exe
Modifies file system :
Creates the following files:
- %HOMEPATH%\a.bat
- %TEMP%\Aqz..bat
- %TEMP%\7ZSfx000.cmd
- %HOMEPATH%\bueufe.exe
- %HOMEPATH%\atlop.exe
- %HOMEPATH%\btlop.exe
- %HOMEPATH%\ctlop.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\bueufe.exe
- <Drive name for removable media>:\bueufex.exe
- %HOMEPATH%\bueufe.exe
- <Drive name for removable media>:\autorun.inf
Deletes the following files:
- %HOMEPATH%\ctlop.exe
- %TEMP%\7ZSfx000.cmd
- %HOMEPATH%\atlop.exe
- %HOMEPATH%\btlop.exe
Deletes itself.
Network activity:
Connects to:
- 'fl###spot.in':80
UDP:
- DNS ASK fl###spot.in
- DNS ASK ma#l.ru
- DNS ASK yandex.ru
Miscellaneous:
Searches for the following windows:
- ClassName: 'SkinuxWindow' WindowName: 'MySpaceIM with Skype'
- ClassName: 'Indicator' WindowName: '(null)'
