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Win32.HLLW.Autoruner2.26066

Added to the Dr.Web virus database: 2016-10-17

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:
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
  • Windows Security Center
Executes the following:
  • '<SYSTEM32>\net.exe' stop Alerter
  • '<SYSTEM32>\sc.exe' config Alerter start= disabled
  • '<SYSTEM32>\net.exe' stop wscsvc
  • '<SYSTEM32>\sc.exe' stop wscsvc
  • '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%APPDATA%\lsass.exe" Rede
  • '<SYSTEM32>\sc.exe' stop SharedAccess
  • '<SYSTEM32>\net.exe' stop SharedAccess
  • '<SYSTEM32>\net1.exe' stop wscsvc
  • '<SYSTEM32>\net1.exe' stop SharedAccess
  • '<SYSTEM32>\sc.exe' config wscsvc start= disabled
  • '<SYSTEM32>\sc.exe' config SharedAccess start= disabled
  • '<SYSTEM32>\net1.exe' stop Alerter
  • '<SYSTEM32>\cmd.exe' /c "sc config Alerter start= disabled"
  • '<SYSTEM32>\cmd.exe' /c "sc stop wscsvc"
  • '<SYSTEM32>\cmd.exe' /c "sc config wscsvc start= disabled"
  • '%APPDATA%\lsass.exe'
  • '<SYSTEM32>\cmd.exe' /c "%APPDATA%\~SystemCache.bat"
  • '<SYSTEM32>\cmd.exe' /c "sc stop Alerter"
  • '<SYSTEM32>\cmd.exe' /c "net stop wscsvc"
  • '<SYSTEM32>\sc.exe' stop Alerter
  • '<SYSTEM32>\cmd.exe' /c "net stop SharedAccess"
  • '<SYSTEM32>\cmd.exe' /c "sc stop SharedAccess"
  • '<SYSTEM32>\cmd.exe' /c "sc config SharedAccess start= disabled"
  • '<SYSTEM32>\cmd.exe' /c "net stop Alerter"
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:
  • 'ad####d.no-ip.biz':8945
  • 'cl####rico.co.cc':8945
  • 'ar###io.co.cc':8945
  • 'ar###io.co.cc':8080
  • 'cl####rico.co.cc':8080
  • 'ad####d.no-ip.biz':8080
UDP:
  • DNS ASK ad####d.no-ip.biz
  • DNS ASK cl####rico.co.cc
  • DNS ASK ar###io.co.cc
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Entwickelt seit 1992
Dr.Web wird in mehr als 200 Ländern genutzt
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