Win32.HLLW.Autoruner.53927
Added to the Dr.Web virus database:
2011-07-10
Virus description added:
2011-07-10
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /D'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /f'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /k'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /b'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /U'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /G'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /C'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /Q'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /E'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /W'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /S'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /I'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /p'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /n'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /X'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /h'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /y'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /j'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /O'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /T'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /m'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /V'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /Z'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yabuh' = '%HOMEPATH%\yabuh.exe /r'
Creates the following files on removable media:
- <Drive name for removable media>:\Documents.lnk
- <Drive name for removable media>:\Passwords.lnk
- <Drive name for removable media>:\Pictures.lnk
- <Drive name for removable media>:\Video.lnk
- <Drive name for removable media>:\Music.lnk
- <Drive name for removable media>:\zpp.ico
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\yabuh.exe
- <Drive name for removable media>:\New Folder.lnk
- <Drive name for removable media>:\yabuhx.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
Creates and executes the following:
Modifies file system :
Creates the following files:
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\yabuh.exe
- <Drive name for removable media>:\yabuhx.exe
- <Drive name for removable media>:\zpp.ico
- %HOMEPATH%\yabuh.exe
- <Drive name for removable media>:\autorun.inf
Network activity:
Connects to:
- 'ns#.##ayer1532.com':8000
UDP:
- DNS ASK ns#.##ayer1532.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
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