Win32.HLLW.Autoruner.51511
Added to the Dr.Web virus database:
2011-06-08
Virus description added:
2011-06-14
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '%WINDIR%\userinit.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\AutoRun.inf
- <Drive name for removable media>:\Secret.exe
Malicious functions:
Creates and executes the following:
- <SYSTEM32>\system.exe
- %WINDIR%\userinit.exe
Modifies file system :
Creates the following files:
- <SYSTEM32>\system.exe
- %WINDIR%\kdcoms.dll
- %WINDIR%\userinit.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\Secret.exe
- <Drive name for removable media>:\AutoRun.inf
- %WINDIR%\userinit.exe
- <SYSTEM32>\system.exe
Network activity:
Connects to:
UDP:
- DNS ASK sc#.##g.yahoo.com
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