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Win32.HLLW.Autoruner2.8953
Added to the Dr.Web virus database:
2014-02-23
Virus description added:
2014-02-25
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'a374829b0e37920935a4bbca40f63d1b' = '"%APPDATA%\system32.exe" ..'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'a374829b0e37920935a4bbca40f63d1b' = '"%APPDATA%\system32.exe" ..'
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\a374829b0e37920935a4bbca40f63d1b.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\system32.exe' = '%APPDATA%\system32.exe:*:Enabled:system32.exe'
Creates and executes the following:
'%APPDATA%\system32.exe'
'%TEMP%\6102_upgrade_firmware_29PLUS.exe'
'%TEMP%\5.exe'
Executes the following:
'<SYSTEM32>\netsh.exe' firewall add allowedprogram "%APPDATA%\system32.exe" "system32.exe" ENABLE
Modifies file system :
Creates the following files:
%TEMP%\6102_upgrade_firmware_29PLUS.exe
%TEMP%\_res_tmp\_res_tmp\_CK510Download.tmp
%APPDATA%\system32.exe
%TEMP%\aut1.tmp
%TEMP%\5.exe
%TEMP%\aut2.tmp
Deletes the following files:
%TEMP%\aut2.tmp
%TEMP%\aut1.tmp
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: '(null)'
ClassName: 'Shell_TrayWnd' WindowName: '(null)'
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