Win32.HLLW.Autoruner.52758
Added to the Dr.Web virus database:
2011-06-28
Virus description added:
2011-07-01
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'XP Logon Manager' = '%WINDIR%\XPLogon.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\XPLogon.exe
- <Drive name for removable media>:\Autorun.inf
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DisableNotifications' = '00000001'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%WINDIR%\XPLogon.exe' = '%WINDIR%\XPLogon.exe:*:Enabled:Explorer'
To complicate detection of its presence in the operating system,
blocks the following features:
- System File Checker (SFC)
Creates and executes the following:
Modifies file system :
Creates the following files:
- C:\XPLogon.exe
- C:\Autorun.inf
- %WINDIR%\XPLogon.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\Autorun.inf
- <Drive name for removable media>:\XPLogon.exe
- C:\Autorun.inf
- C:\XPLogon.exe
Network activity:
Connects to:
- 'www.sp###t.chat.ru':80
- '<Private IP address>':81
TCP:
HTTP GET requests:
- www.sp###t.chat.ru/par.txt
UDP:
- DNS ASK www.sp###t.chat.ru
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