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Profile

Win32.HLLW.Autoruner1.53728

Added to the Dr.Web virus database: 2013-08-11

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'LSA Shell (Export Version)' = '%APPDATA%\lsass.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\RECYCLER\S-1-6-21-2434476501-1644491937-600003330-1213\u.exe
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\RECYCLER\S-1-6-21-2434476501-1644491937-600003330-1213\Desktop.ini
Malicious functions:
Creates and executes the following:
  • '%APPDATA%\lsass.exe'
Executes the following:
  • '<SYSTEM32>\net.exe' stop wscsvc
  • '<SYSTEM32>\net.exe' stop Alerter
  • '<SYSTEM32>\sc.exe' config SharedAccess start= disabled
  • '<SYSTEM32>\net.exe' stop SharedAccess
  • '<SYSTEM32>\net1.exe' stop SharedAccess
  • '<SYSTEM32>\net1.exe' stop wscsvc
  • '<SYSTEM32>\net1.exe' stop Alerter
  • '<SYSTEM32>\sc.exe' stop Alerter
  • '<SYSTEM32>\sc.exe' config Alerter start= disabled
  • '<SYSTEM32>\cmd.exe' /c "%APPDATA%\~SystemCache.bat"
  • '<SYSTEM32>\sc.exe' stop wscsvc
  • '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%APPDATA%\lsass.exe" Rede
  • '<SYSTEM32>\sc.exe' stop SharedAccess
  • '<SYSTEM32>\sc.exe' config wscsvc start= disabled
Modifies file system :
Creates the following files:
  • %APPDATA%\lsass.exe
  • %APPDATA%\~SystemCache.bat
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\RECYCLER\S-1-6-21-2434476501-1644491937-600003330-1213\u.exe
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\RECYCLER\S-1-6-21-2434476501-1644491937-600003330-1213\Desktop.ini
Deletes the following files:
  • <Drive name for removable media>:\RECYCLER\S-1-6-21-2434476501-1644491937-600003330-1213\u.exe
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\RECYCLER\S-1-6-21-2434476501-1644491937-600003330-1213\Desktop.ini
Deletes itself.
Network activity:
Connects to:
  • 'cl####rico.co.cc':8945
  • 'cl####rico.co.cc':8080
  • 'ar###io.co.cc':8080
UDP:
  • DNS ASK cl####rico.co.cc
  • DNS ASK ar###io.co.cc
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: '(null)'