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Win32.HLLW.Autoruner1.16601

Added to the Dr.Web virus database: 2012-05-29

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'joazua' = '%HOMEPATH%\joazua.exe /N'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'joazua' = '%HOMEPATH%\joazua.exe /Z'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'joazua' = '%HOMEPATH%\joazua.exe /P'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'joazua' = '%HOMEPATH%\joazua.exe /s'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'joazua' = '%HOMEPATH%\joazua.exe /o'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'joazua' = '%HOMEPATH%\joazua.exe /V'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'joazua' = '%HOMEPATH%\joazua.exe /D'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'joazua' = '%HOMEPATH%\joazua.exe /a'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'joazua' = '%HOMEPATH%\joazua.exe /h'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'joazua' = '%HOMEPATH%\joazua.exe /c'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'joazua' = '%HOMEPATH%\joazua.exe /U'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'joazua' = '%HOMEPATH%\joazua.exe /G'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'joazua' = '%HOMEPATH%\joazua.exe /B'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'joazua' = '%HOMEPATH%\joazua.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>:\yJHl.ico
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\joazua.exe
  • <Drive name for removable media>:\New Folder.lnk
  • <Drive name for removable media>:\joazuax.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%\joazua.exe
Modifies file system :
Creates the following files:
  • %HOMEPATH%\joazua.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\joazua.exe
  • <Drive name for removable media>:\joazuax.exe
  • <Drive name for removable media>:\yJHl.ico
  • %HOMEPATH%\joazua.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: ''