Win32.HLLW.Autoruner.53564

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhom' = '%HOMEPATH%\cuhom.exe /W'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhom' = '%HOMEPATH%\cuhom.exe /n'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhom' = '%HOMEPATH%\cuhom.exe /e'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhom' = '%HOMEPATH%\cuhom.exe /z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhom' = '%HOMEPATH%\cuhom.exe /H'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhom' = '%HOMEPATH%\cuhom.exe /I'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhom' = '%HOMEPATH%\cuhom.exe /s'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhom' = '%HOMEPATH%\cuhom.exe /U'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhom' = '%HOMEPATH%\cuhom.exe /g'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhom' = '%HOMEPATH%\cuhom.exe /p'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhom' = '%HOMEPATH%\cuhom.exe /j'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhom' = '%HOMEPATH%\cuhom.exe /l'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhom' = '%HOMEPATH%\cuhom.exe /o'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhom' = '%HOMEPATH%\cuhom.exe /V'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhom' = '%HOMEPATH%\cuhom.exe /R'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Sxikihuvuw' = 'rundll32.exe "%WINDIR%\enpsat.dll",Startup'
[<HKLM>\SYSTEM\ControlSet001\Control\Print\Providers\1880023136] 'Name' = '"%TEMP%\3.tmp"'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhom' = '%HOMEPATH%\cuhom.exe /c'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhom' = '%HOMEPATH%\cuhom.exe /B'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhom' = '%HOMEPATH%\cuhom.exe /A'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhom' = '%HOMEPATH%\cuhom.exe /q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhom' = '%HOMEPATH%\cuhom.exe /F'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhom' = '%HOMEPATH%\cuhom.exe /y'

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>:\hKBP.ico
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\cuhom.exe
<Drive name for removable media>:\New Folder.lnk
<Drive name for removable media>:\cuhomx.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%\cuhom.exe
%HOMEPATH%\eZSlcJRqFHc4ruH5.exe
%HOMEPATH%\fumble.exe

Executes the following:

<SYSTEM32>\rundll32.exe "%WINDIR%\enpsat.dll",iep
<SYSTEM32>\tasklist.exe
<SYSTEM32>\rundll32.exe "%WINDIR%\enpsat.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%\ibawimuwesebebe.dll
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\CA67EBAH.php
%HOMEPATH%\cuhom.exe
%HOMEPATH%\fumble.exe
%HOMEPATH%\eZSlcJRqFHc4ruH5.exe
%WINDIR%\enpsat.dll
%HOMEPATH%\gumble.exe

Sets the 'hidden' attribute to the following files:

<Drive name for removable media>:\cuhom.exe
<Drive name for removable media>:\cuhomx.exe
<Drive name for removable media>:\hKBP.ico
%HOMEPATH%\cuhom.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:

'11#####b071c.eamia.net':80
'localhost':1034

UDP:

DNS ASK 11#####b071c.eamia.net

Miscellaneous:

Searches for the following windows:

ClassName: 'Indicator' WindowName: ''

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Technical Information