Win32.HLLW.Autoruner.52714
Added to the Dr.Web virus database:
2011-06-27
Virus description added:
2011-06-27
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'MSWUpdate' = '"%APPDATA%\smss.exe"'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'MSWUpdate' = '"%APPDATA%\smss.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'Explorer.exe "%APPDATA%\smss.exe"'
Creates the following files on removable media:
- <Drive name for removable media>:\Autorun.inf
- <Drive name for removable media>:\SYSTEM.EXE
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\smss.exe' = '%APPDATA%\smss.exe:*:Enabled:CityScape'
Creates and executes the following:
Executes the following:
- <SYSTEM32>\netsh.exe firewall add allowedprogram "%APPDATA%\smss.exe" CityScape Enable
Modifies file system :
Creates the following files:
- %APPDATA%\smss.exe
- %APPDATA%\FMxIkoWU
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\locate_my_ip[1]
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\Autorun.inf
- <Drive name for removable media>:\SYSTEM.EXE
- %APPDATA%\smss.exe
Deletes the following files:
Network activity:
Connects to:
- 'ge####.dyndns.org':3177
- 'www.ma##ind.com':80
- 'localhost':1035
TCP:
HTTP GET requests:
- www.ma##ind.com/app/locate_my_ip
UDP:
- DNS ASK ge####.dyndns.org
- DNS ASK www.ma##ind.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
- ClassName: '' WindowName: 'HB'
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