Win32.HLLW.Autoruner.58252

Added to the Dr.Web virus database: 2011-09-07

Virus description added: 2011-09-07

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'sihost.exe' = '"%APPDATA%\{%USERNAME%-flkjlkjlweiupwlkreeflkjwhgf}\sihost.exe"'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'sihost.exe' = '"%APPDATA%\{%USERNAME%-flkjlkjlweiupwlkreeflkjwhgf}\sihost.exe"'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'flkjlkjlw®?????????????????' = '"%APPDATA%\{%USERNAME%-flkjlkjlweiupwlkreeflkjwhgf}\flkjlkjlw®"'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'flkjlkjlw®?????????????????' = '"%APPDATA%\{%USERNAME%-flkjlkjlweiupwlkreeflkjwhgf}\flkjlkjlw®"'

Creates the following files on removable media:

<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\{%USERNAME%-flkjlkjlweiupwlkreeflkjwhgf}\sihost.exe

Malicious functions:

Creates and executes the following:

Modifies file system :

Creates the following files:

%APPDATA%\{%USERNAME%-flkjlkjlw®?????????????????}\sysinfo_flkjlkjlweiupwlkreeflkjwhgf.inf
%APPDATA%\{%USERNAME%-flkjlkjlweiupwlkreeflkjwhgf}\sihost.exe

Sets the 'hidden' attribute to the following files:

<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\{%USERNAME%-flkjlkjlweiupwlkreeflkjwhgf}\sihost.exe
%APPDATA%\{%USERNAME%-flkjlkjlweiupwlkreeflkjwhgf}\sihost.exe

Network activity:

Connects to:

UDP:

Miscellaneous:

Searches for the following windows: