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Win32.HLLW.Autoruner.55884
Added to the Dr.Web virus database:
2011-08-09
Virus description added:
2011-08-09
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'WindowsFireWall' = '%TEMP%\/WindowsFireWall.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'winlogon.exe' = '%TEMP%\<Virus name>.exe'
Creates the following files on removable media:
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\Sys.exe
Malicious functions:
Creates and executes the following:
%TEMP%\javaw.exe
%TEMP%\<Virus name>.exe
Executes the following:
<SYSTEM32>\wscript.exe ""%TEMP%\s4c.vbs""
Modifies file system :
Creates the following files:
C:\autorun.inf
%TEMP%\javaw.exe
%TEMP%\WindowsFireWall.exe
%TEMP%\<Virus name>.exe
%TEMP%\s4c.vbs
C:\Sys.exe
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\Sys.exe
<Drive name for removable media>:\autorun.inf
C:\Sys.exe
C:\autorun.inf
Deletes the following files:
Deletes itself.
Network activity:
Connects to:
'au######on.whatismyip.com':80
TCP:
HTTP GET requests:
au######on.whatismyip.com/n09230945.asp
UDP:
DNS ASK au######on.whatismyip.com
Miscellaneous:
Searches for the following windows:
ClassName: 'Shell_TrayWnd' WindowName: ''
ClassName: 'Indicator' WindowName: ''
ClassName: '' WindowName: '<Auxiliary name>'
ClassName: '' WindowName: '%TEMP%\<Virus name>.exe'
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