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Win32.HLLW.Autoruner2.1041
Added to the Dr.Web virus database:
2014-01-12
Virus description added:
2014-01-13
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '3a8c23f4df4d13d0ee5d468801ad4780' = '"%HOMEPATH%\explorer.exe" ..'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '3a8c23f4df4d13d0ee5d468801ad4780' = '"%HOMEPATH%\explorer.exe" ..'
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\3a8c23f4df4d13d0ee5d468801ad4780.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%HOMEPATH%\explorer.exe' = '%HOMEPATH%\explorer.exe:*:Enabled:explorer.exe'
Creates and executes the following:
'%HOMEPATH%\explorer.exe'
Executes the following:
'<SYSTEM32>\netsh.exe' firewall add allowedprogram "%HOMEPATH%\explorer.exe" "explorer.exe" ENABLE
Modifies file system :
Creates the following files:
Network activity:
Connects to:
'mo#####4ch.no-ip.org':5552
UDP:
DNS ASK Mo#####4ch.no-ip.org
Miscellaneous:
Searches for the following windows:
ClassName: 'Shell_TrayWnd' WindowName: '(null)'
ClassName: 'Indicator' WindowName: '(null)'
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