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Win32.HLLW.Autoruner2.14198

Added to the Dr.Web virus database: 2014-05-09

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'quojo' = '%HOMEPATH%\quojo.exe /n'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'quojo' = '%HOMEPATH%\quojo.exe /u'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'quojo' = '%HOMEPATH%\quojo.exe /g'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'quojo' = '%HOMEPATH%\quojo.exe /b'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'quojo' = '%HOMEPATH%\quojo.exe /l'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'quojo' = '%HOMEPATH%\quojo.exe /h'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'quojo' = '%HOMEPATH%\quojo.exe /e'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'quojo' = '%HOMEPATH%\quojo.exe /F'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'quojo' = '%HOMEPATH%\quojo.exe /k'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'quojo' = '%HOMEPATH%\quojo.exe /q'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'quojo' = '%HOMEPATH%\quojo.exe /J'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'quojo' = '%HOMEPATH%\quojo.exe /i'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'quojo' = '%HOMEPATH%\quojo.exe /A'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'quojo' = '%HOMEPATH%\quojo.exe /V'
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>:\iqWA.ico
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\quojo.exe
  • <Drive name for removable media>:\New Folder.lnk
  • <Drive name for removable media>:\quojox.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%\quojo.exe'
Modifies file system :
Creates the following files:
  • %HOMEPATH%\quojo.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\quojo.exe
  • <Drive name for removable media>:\quojox.exe
  • <Drive name for removable media>:\iqWA.ico
  • %HOMEPATH%\quojo.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: '(null)'