Defend what you create

Other Resources

Close

Library
My library

+ Add to library

Contact us
24/7 Tech support | Rules regarding submitting

Send a message

Your tickets

Profile

Win32.HLLW.Autoruner.52843

Added to the Dr.Web virus database: 2011-06-29

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKLM>\Software\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'Explorer.exe "%APPDATA%\lsass.exe"'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'MSWUpdate' = '"%APPDATA%\lsass.exe"'
  • [<HKLM>\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run] 'MSWUpdate' = '"%APPDATA%\lsass.exe"'
Creates the following files on removable media
  • <Drive name for removable media>:\system.exe
  • <Drive name for removable media>:\autorun.inf
Malicious functions
Executes the following
  • '%WINDIR%\syswow64\netsh.exe' firewall add allowedprogram program = %APPDATA%\lsass.exename = Nero mode = ENABLE
Modifies file system
Creates the following files
  • %TEMP%\anopefilusinstallations.exe
  • %APPDATA%\lsass.exe
Sets the 'hidden' attribute to the following files
  • %APPDATA%\lsass.exe
  • <Drive name for removable media>:\system.exe
  • <Drive name for removable media>:\autorun.inf
Deletes the following files
  • %TEMP%\anopefilusinstallations.exe
Network activity
UDP
  • DNS ASK fr###.no-ip.biz
Miscellaneous
Searches for the following windows
  • ClassName: '' WindowName: 'HB'
Creates and executes the following
  • '%TEMP%\anopefilusinstallations.exe'
  • '%APPDATA%\lsass.exe' /d %TEMP%\AnopefilusInstallations.exe
  • '%WINDIR%\syswow64\netsh.exe' firewall add allowedprogram program = %APPDATA%\lsass.exename = Nero mode = ENABLE' (with hidden window)

The Russian developer of Dr.Web anti-viruses

Doctor Web has been developing anti-virus software since 1992

Dr.Web is trusted by users around the world in 200+ countries

The company has delivered an anti-virus as a service since 2007

24/7 tech support

© Doctor Web
2003 — 2020

Doctor Web is the Russian developer of Dr.Web anti-virus software. Dr.Web anti-virus software has been developed since 1992.

2-12А, 3rd street Yamskogo polya, Moscow, Russia, 125040