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Win32.HLLW.Autoruner2.3737
Added to the Dr.Web virus database:
2014-01-29
Virus description added:
2014-01-31
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '8351eac83813f9074d0355a56c702e44' = '"%TEMP%\msn.exe" ..'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '8351eac83813f9074d0355a56c702e44' = '"%TEMP%\msn.exe" ..'
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\8351eac83813f9074d0355a56c702e44.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\msn.exe' = '%TEMP%\msn.exe:*:Enabled:msn.exe'
Creates and executes the following:
'%TEMP%\msn.exe'
'%TEMP%\ro.exe'
'%TEMP%\CCcamCC.exe'
Executes the following:
'<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\msn.exe" "msn.exe" ENABLE
Modifies file system :
Creates the following files:
%TEMP%\msn.exe
%TEMP%\CCcamCC.exe
%TEMP%\ro.exe
Network activity:
Connects to:
'na####444.no-ip.org':1177
'localhost':1036
UDP:
DNS ASK na####444.no-ip.org
Miscellaneous:
Searches for the following windows:
ClassName: 'MS_WebcheckMonitor' WindowName: '(null)'
ClassName: 'Indicator' WindowName: '(null)'
ClassName: 'Shell_TrayWnd' WindowName: '(null)'
ClassName: 'MS_AutodialMonitor' WindowName: '(null)'
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