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Win32.HLLW.Autoruner2.13644
Added to the Dr.Web virus database:
2014-05-03
Virus description added:
2014-05-04
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'c3294e515629d65109551b22b924c29b' = '"%TEMP%\chroom.exe" ..'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'c3294e515629d65109551b22b924c29b' = '"%TEMP%\chroom.exe" ..'
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\c3294e515629d65109551b22b924c29b.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\chroom.exe' = '%TEMP%\chroom.exe:*:Enabled:chroom.exe'
Creates and executes the following:
'%TEMP%\chroom.exe'
'C:\Extracted\NJServer.exe'
Executes the following:
'<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\chroom.exe" "chroom.exe" ENABLE
Modifies file system :
Creates the following files:
C:\Extracted\HVMRuntm.dll
%TEMP%\chroom.exe
%TEMP%\sfx.ini
C:\Extracted\NJServer.exe
Deletes the following files:
Network activity:
Connects to:
'ad####k00.no-ip.biz':1177
UDP:
DNS ASK ad####k00.no-ip.biz
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: '(null)'
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