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Win32.HLLW.BackDates.884

Added to the Dr.Web virus database: 2014-05-13

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cauveuw' = '%HOMEPATH%\cauveuw.exe /c'
Creates the following files on removable media:
  • <Drive name for removable media>:\Sexy.exe
  • <Drive name for removable media>:\Porn.exe
  • <Drive name for removable media>:\Passwords.exe
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\cauveuw.exe
  • <Drive name for removable media>:\Secret.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%\cauveuw.exe'
Modifies file system :
Creates the following files:
  • %HOMEPATH%\c\Secret.exe
  • %HOMEPATH%\c\Sexy.exe
  • %HOMEPATH%\c\RCXD.tmp
  • %HOMEPATH%\c\autorun.inf
  • %HOMEPATH%\RCXA.tmp
  • %HOMEPATH%\RCXB.tmp
  • %HOMEPATH%\RCXC.tmp
  • %HOMEPATH%\c\RCX10.tmp
  • %HOMEPATH%\c\RCX11.tmp
  • %HOMEPATH%\c\RCX12.tmp
  • %HOMEPATH%\c\Passwords.exe
  • %HOMEPATH%\c\Porn.exe
  • %HOMEPATH%\c\RCXE.tmp
  • %HOMEPATH%\c\RCXF.tmp
  • %HOMEPATH%\Porn.exe
  • %HOMEPATH%\RCX2.tmp
  • %HOMEPATH%\RCX3.tmp
  • %HOMEPATH%\RCX1.tmp
  • %HOMEPATH%\cauveuw.exe
  • %HOMEPATH%\Secret.exe
  • %HOMEPATH%\Sexy.exe
  • %HOMEPATH%\RCX7.tmp
  • %HOMEPATH%\RCX8.tmp
  • %HOMEPATH%\RCX9.tmp
  • %HOMEPATH%\RCX6.tmp
  • %HOMEPATH%\Passwords.exe
  • %HOMEPATH%\RCX4.tmp
  • %HOMEPATH%\RCX5.tmp
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\cauveuw.exe
  • %HOMEPATH%\c\autorun.inf
  • %HOMEPATH%\cauveuw.exe
  • <Drive name for removable media>:\autorun.inf
Deletes the following files:
  • %HOMEPATH%\c\Passwords.exe
  • %HOMEPATH%\c\Porn.exe
  • %HOMEPATH%\c\Secret.exe
  • %HOMEPATH%\c\autorun.inf
  • %HOMEPATH%\c\Sexy.exe
  • %HOMEPATH%\Porn.exe
  • %HOMEPATH%\Sexy.exe
  • %HOMEPATH%\Secret.exe
  • %HOMEPATH%\Passwords.exe
Moves the following files:
  • from %HOMEPATH%\RCXC.tmp to %HOMEPATH%\Passwords.exe
  • from %HOMEPATH%\c\RCXD.tmp to %HOMEPATH%\c\Sexy.exe
  • from %HOMEPATH%\RCXA.tmp to %HOMEPATH%\Passwords.exe
  • from %HOMEPATH%\RCXB.tmp to %HOMEPATH%\Passwords.exe
  • from %HOMEPATH%\c\RCXE.tmp to %HOMEPATH%\c\Porn.exe
  • from %HOMEPATH%\c\RCX11.tmp to %HOMEPATH%\c\Passwords.exe
  • from %HOMEPATH%\c\RCX12.tmp to %HOMEPATH%\c\Passwords.exe
  • from %HOMEPATH%\c\RCXF.tmp to %HOMEPATH%\c\Porn.exe
  • from %HOMEPATH%\c\RCX10.tmp to %HOMEPATH%\c\Passwords.exe
  • from %HOMEPATH%\RCX3.tmp to %HOMEPATH%\Porn.exe
  • from %HOMEPATH%\RCX4.tmp to %HOMEPATH%\Passwords.exe
  • from %HOMEPATH%\RCX1.tmp to %HOMEPATH%\Sexy.exe
  • from %HOMEPATH%\RCX2.tmp to %HOMEPATH%\Porn.exe
  • from %HOMEPATH%\RCX5.tmp to %HOMEPATH%\Passwords.exe
  • from %HOMEPATH%\RCX8.tmp to %HOMEPATH%\Porn.exe
  • from %HOMEPATH%\RCX9.tmp to %HOMEPATH%\Porn.exe
  • from %HOMEPATH%\RCX6.tmp to %HOMEPATH%\Passwords.exe
  • from %HOMEPATH%\RCX7.tmp to %HOMEPATH%\Sexy.exe
Network activity:
Connects to:
  • 'ns#.##ckupdate3.org':7004
  • 'ns#.##ckdate1.com':7004
  • 'ns#.##ckupdate3.com':7004
  • 'ns#.##ckupdate2.org':7004
  • 'ns#.##ckupdate2.net':7004
  • 'ns#.##ckupdate4.net':7004
  • 'ns#.##ckupdate1.net':7004
  • 'ns#.##ckupdate1.com':7004
  • 'ns#.##ckupdate1.org':7004
  • 'ns#.##ckupdate3.net':7004
  • 'ns#.##ckupdate2.com':7004
UDP:
  • DNS ASK ns#.##ckupdate3.org
  • DNS ASK ns#.##ckdate1.com
  • DNS ASK ns#.##ckupdate3.com
  • DNS ASK ns#.##ckupdate2.org
  • DNS ASK ns#.##ckupdate2.net
  • DNS ASK ns#.##ckupdate4.net
  • DNS ASK ns#.##ckupdate1.net
  • DNS ASK ns#.##ckupdate1.com
  • DNS ASK ns#.##ckupdate1.org
  • DNS ASK ns#.##ckupdate3.net
  • DNS ASK ns#.##ckupdate2.com
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: '(null)'
  • ClassName: 'Indicator' WindowName: '(null)'

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