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Win32.HLLW.Autoruner2.8444
Added to the Dr.Web virus database:
2014-02-22
Virus description added:
2014-02-23
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'f56331bca420c1ecbd2946fd4a2fb857' = '"%TEMP%\wfi.exe" ..'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'f56331bca420c1ecbd2946fd4a2fb857' = '"%TEMP%\wfi.exe" ..'
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\f56331bca420c1ecbd2946fd4a2fb857.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\wfi.exe' = '%TEMP%\wfi.exe:*:Enabled:wfi.exe'
Creates and executes the following:
Executes the following:
'<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\wfi.exe" "wfi.exe" ENABLE
Modifies file system :
Creates the following files:
Network activity:
Connects to:
'mh#####oker.no-ip.biz':1177
UDP:
DNS ASK mh#####oker.no-ip.biz
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: '(null)'
ClassName: 'Shell_TrayWnd' WindowName: '(null)'
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