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Win32.HLLW.Autoruner2.2236
Added to the Dr.Web virus database:
2014-01-19
Virus description added:
2014-01-21
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '918dc2a54f1093d614d3d408def2045e' = '"%HOMEPATH%\dn.exe" ..'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '918dc2a54f1093d614d3d408def2045e' = '"%HOMEPATH%\dn.exe" ..'
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\! My Image.scr
Creates the following files on removable media:
<Drive name for removable media>:\! My Image.scr
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%HOMEPATH%\dn.exe' = '%HOMEPATH%\dn.exe:*:Enabled:dn.exe'
Creates and executes the following:
'%HOMEPATH%\dn.exe'
'%TEMP%\boube.exe'
Executes the following:
'<SYSTEM32>\netsh.exe' firewall add allowedprogram "%HOMEPATH%\dn.exe" "dn.exe" ENABLE
Modifies file system :
Creates the following files:
C:\! My Image.scr
%HOMEPATH%\dn.exe
%TEMP%\aut1.tmp
%TEMP%\boube.exe
Deletes the following files:
<Drive name for removable media>:\! My Image.scr
C:\! My Image.scr
%TEMP%\aut1.tmp
Network activity:
Connects to:
UDP:
DNS ASK mr####2.no-ip.biz
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: '(null)'
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