Win32.HLLW.Autoruner1.26672
Added to the Dr.Web virus database:
2012-09-26
Virus description added:
2012-10-17
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '<SYSTEM32>\Userinit.exe,C:\svchost.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\ntldr.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
- file extensions
Creates and executes the following:
- <Current directory>\file.exe
- <Current directory>\file.exe (downloaded from the Internet)
Modifies file system :
Creates the following files:
- %WINDIR%\sp.htm
- <Current directory>\workgroup
- C:\svchost.exe
- <Current directory>\file.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\ntldr.exe
- <Drive name for removable media>:\autorun.inf
- C:\svchost.exe
- <Current directory>\file.exe
Network activity:
Connects to:
- 'up####irect.info':80
- 'wp#d':80
TCP:
HTTP GET requests:
- up####irect.info/files/f44c27492943460b323192a95949add5.exe
- wp#d/wpad.dat
UDP:
- DNS ASK up####irect.info
- DNS ASK wp#d
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