Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /t'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /c'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /L'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /K'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /J'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /X'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /q'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /B'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /o'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /u'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /f'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /g'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /e'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /a'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /Z'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /w'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /y'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /D'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /p'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /I'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /r'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /s'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /V'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /H'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /N'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buijun' = '%HOMEPATH%\buijun.exe /M'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\jzIn.ico
- <Drive name for removable media>:\buijun.exe
- <Drive name for removable media>:\buijunx.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%\buijun.exe
Sets the 'hidden' attribute to the following files:
- %HOMEPATH%\buijun.exe
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\jzIn.ico
- <Drive name for removable media>:\buijun.exe
- <Drive name for removable media>:\buijunx.exe
Network activity:
Connects to:
- 'ns#.##ayer1532.com':8000
UDP:
- DNS ASK ns#.##ayer1532.com
Miscellaneous:
Creates and executes the following:
- '%HOMEPATH%\buijun.exe'