Win32.HLLW.Autoruner.53481

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hiuhug' = '%HOMEPATH%\hiuhug.exe /d'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hiuhug' = '%HOMEPATH%\hiuhug.exe /e'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hiuhug' = '%HOMEPATH%\hiuhug.exe /Y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hiuhug' = '%HOMEPATH%\hiuhug.exe /q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hiuhug' = '%HOMEPATH%\hiuhug.exe /s'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hiuhug' = '%HOMEPATH%\hiuhug.exe /C'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hiuhug' = '%HOMEPATH%\hiuhug.exe /g'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hiuhug' = '%HOMEPATH%\hiuhug.exe /L'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hiuhug' = '%HOMEPATH%\hiuhug.exe /F'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hiuhug' = '%HOMEPATH%\hiuhug.exe /x'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hiuhug' = '%HOMEPATH%\hiuhug.exe /a'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hiuhug' = '%HOMEPATH%\hiuhug.exe /T'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Sxikihuvuw' = 'rundll32.exe "%WINDIR%\mumltut.dll",Startup'
[<HKLM>\SYSTEM\ControlSet001\Control\Print\Providers\551422480] 'Name' = '"%TEMP%\3.tmp"'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hiuhug' = '%HOMEPATH%\hiuhug.exe /h'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hiuhug' = '%HOMEPATH%\hiuhug.exe /O'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hiuhug' = '%HOMEPATH%\hiuhug.exe /K'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hiuhug' = '%HOMEPATH%\hiuhug.exe /W'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hiuhug' = '%HOMEPATH%\hiuhug.exe /R'

Creates the following files on removable media:

<Drive name for removable media>:\Documents.lnk
<Drive name for removable media>:\Passwords.lnk
<Drive name for removable media>:\Pictures.lnk
<Drive name for removable media>:\Video.lnk
<Drive name for removable media>:\Music.lnk
<Drive name for removable media>:\ahkS.ico
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\hiuhug.exe
<Drive name for removable media>:\New Folder.lnk
<Drive name for removable media>:\hiuhugx.exe

Malicious functions:

To complicate detection of its presence in the operating system,

forces the system hide from view:

hidden files

Creates and executes the following:

%HOMEPATH%\gumble.exe
%HOMEPATH%\hiuhug.exe
%HOMEPATH%\eZSlcJRqFHc4ruH5.exe
%HOMEPATH%\fumble.exe

Executes the following:

<SYSTEM32>\rundll32.exe "%WINDIR%\mumltut.dll",iep
<SYSTEM32>\tasklist.exe
<SYSTEM32>\rundll32.exe "%WINDIR%\mumltut.dll",Startup

Injects code into

the following system processes:

<SYSTEM32>\spoolsv.exe

Modifies settings of Windows Internet Explorer:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1A10' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '{AEBA21FA-782A-4A90-978D-B72164C80120}' = ''
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '{A8A88C49-5EB2-4990-A1A2-0876022C854F}' = ''
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] 'currentlevel' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1601' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1400' = '00000000'

Modifies file system :

Creates the following files:

%WINDIR%\Temp\4.tmp
%TEMP%\2.tmp
%WINDIR%\ayibaguwimuwese.dll
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\CAUVQRYT.php
%HOMEPATH%\hiuhug.exe
%HOMEPATH%\fumble.exe
%HOMEPATH%\eZSlcJRqFHc4ruH5.exe
%WINDIR%\mumltut.dll
%HOMEPATH%\gumble.exe

Sets the 'hidden' attribute to the following files:

<Drive name for removable media>:\hiuhug.exe
<Drive name for removable media>:\hiuhugx.exe
<Drive name for removable media>:\ahkS.ico
%HOMEPATH%\hiuhug.exe
<Drive name for removable media>:\autorun.inf

Deletes the following files:

%WINDIR%\Temp\4.tmp
%HOMEPATH%\eZSlcJRqFHc4ruH5.exe
%TEMP%\3.tmp
<DRIVERS>\etc\hosts

Network activity:

Connects to:

'10######073b.fivetag.net':80
'localhost':1035

UDP:

DNS ASK 10######073b.fivetag.net

Miscellaneous:

Searches for the following windows:

ClassName: 'Indicator' WindowName: ''

Tecnologías

Términos

Formación y educación

Mitos

Technical Information