Win32.HLLW.Autoruner.53481
Added to the Dr.Web virus database:
2011-07-06
Virus description added:
2011-07-07
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:
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:
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: ''
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