Win32.HLLW.Autoruner2.37885
Added to the Dr.Web virus database:
2018-04-29
Virus description added:
2018-04-29
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /E'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /w'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /s'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /r'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /a'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /K'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /d'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /j'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /f'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /p'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /Z'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /H'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /O'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /t'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /G'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /x'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /L'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /C'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /i'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /Q'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /B'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /u'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /V'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /Y'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /N'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ciufau' = '%HOMEPATH%\ciufau.exe /m'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\HZf.ico
- <Drive name for removable media>:\ciufau.exe
- <Drive name for removable media>:\ciufaux.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:
Modifies file system:
Creates the following files:
Sets the 'hidden' attribute to the following files:
- %HOMEPATH%\ciufau.exe
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\HZf.ico
- <Drive name for removable media>:\ciufau.exe
- <Drive name for removable media>:\ciufaux.exe
Network activity:
Connects to:
- 'ns#.##ayer1532.com':8000
UDP:
- DNS ASK ns#.##ayer1532.com
Miscellaneous:
Creates and executes the following:
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