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Win32.HLLW.Autoruner1.25218
Added to the Dr.Web virus database:
2012-08-26
Virus description added:
2012-09-16
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{AB6B17EA-B36E-AC05-ED6C-62DBD379AB81}] 'StubPath' = '%APPDATA%\ArbiBots.exe'
[<HKCU>\Software\Microsoft\Active Setup\Installed Components\{AB6B17EA-B36E-AC05-ED6C-62DBD379AB81}] 'StubPath' = '%APPDATA%\ArbiBots.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Host' = '%APPDATA%\ArbiBots.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run] 'Windows Host' = '%APPDATA%\ArbiBots.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Windows Host' = '%APPDATA%\ArbiBots.exe'
Creates the following files on removable media:
<Drive name for removable media>:\Autorun.ini
<Drive name for removable media>:\<Virus name>.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\ArbiBots.exe' = '%APPDATA%\ArbiBots.exe:*:Enabled:Windows Messanger'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<Full path to virus>' = '<Full path to virus>:*:Enabled:Windows Messanger'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
Executes the following:
<SYSTEM32>\reg.exe ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\ArbiBots.exe" /t REG_SZ /d "%APPDATA%\ArbiBots.exe:*:Enabled:Windows Messanger" /f
<SYSTEM32>\reg.exe ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "<Full path to virus>" /t REG_SZ /d "<Full path to virus>:*:Enabled:Windows Messanger" /f
<SYSTEM32>\reg.exe ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
Injects code into
the following system processes:
Modifies file system :
Creates the following files:
%APPDATA%\data.dat
%APPDATA%\ArbiBots.exe
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\<Virus name>.exe
<Drive name for removable media>:\Autorun.ini
%APPDATA%\ArbiBots.exe
<Full path to virus>
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: ''
ClassName: 'shell_traywnd' WindowName: ''
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