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Win32.HLLW.Autoruner.55195
Added to the Dr.Web virus database:
2011-07-27
Virus description added:
2011-07-27
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buenaos' = '%HOMEPATH%\buenaos.exe /G'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buenaos' = '%HOMEPATH%\buenaos.exe /a'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buenaos' = '%HOMEPATH%\buenaos.exe /W'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buenaos' = '%HOMEPATH%\buenaos.exe /E'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buenaos' = '%HOMEPATH%\buenaos.exe /s'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buenaos' = '%HOMEPATH%\buenaos.exe /H'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buenaos' = '%HOMEPATH%\buenaos.exe /c'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buenaos' = '%HOMEPATH%\buenaos.exe /m'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buenaos' = '%HOMEPATH%\buenaos.exe /d'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buenaos' = '%HOMEPATH%\buenaos.exe /Y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buenaos' = '%HOMEPATH%\buenaos.exe /q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buenaos' = '%HOMEPATH%\buenaos.exe /i'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buenaos' = '%HOMEPATH%\buenaos.exe /B'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buenaos' = '%HOMEPATH%\buenaos.exe /R'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buenaos' = '%HOMEPATH%\buenaos.exe /V'
[<HKLM>\SYSTEM\ControlSet001\Control\Print\Providers\1955636688] 'Name' = '"%TEMP%\2.tmp"'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buenaos' = '%HOMEPATH%\buenaos.exe /P'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buenaos' = '%HOMEPATH%\buenaos.exe /J'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buenaos' = '%HOMEPATH%\buenaos.exe /K'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buenaos' = '%HOMEPATH%\buenaos.exe /z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buenaos' = '%HOMEPATH%\buenaos.exe /U'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buenaos' = '%HOMEPATH%\buenaos.exe /o'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'buenaos' = '%HOMEPATH%\buenaos.exe /x'
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>:\JJM.ico
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\buenaos.exe
<Drive name for removable media>:\New Folder.lnk
<Drive name for removable media>:\buenaosx.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%\zmmon.exe
%HOMEPATH%\spooldx.exe (downloaded from the Internet)
%HOMEPATH%\buenaos.exe
%HOMEPATH%\axsvr.exe
%HOMEPATH%\ZKJxkNR73D83.exe
%HOMEPATH%\zlmon.exe
Executes the following:
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:
%TEMP%\1.tmp
%HOMEPATH%\buenaos.exe
%WINDIR%\Temp\3.tmp
%HOMEPATH%\spooldx.exe
%HOMEPATH%\axsvr.dll
%HOMEPATH%\ZKJxkNR73D83.exe
%HOMEPATH%\axsvr.exe
%HOMEPATH%\zmmon.exe
%HOMEPATH%\zlmon.exe
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\buenaos.exe
<Drive name for removable media>:\buenaosx.exe
<Drive name for removable media>:\JJM.ico
%HOMEPATH%\buenaos.exe
<Drive name for removable media>:\autorun.inf
Deletes the following files:
%WINDIR%\Temp\3.tmp
%HOMEPATH%\ZKJxkNR73D83.exe
%TEMP%\2.tmp
<DRIVERS>\etc\hosts
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: ''
ClassName: 'Shell_TrayWnd' WindowName: ''
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