Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '35d1703cd61867afaf567473dc316f87' = '"%TEMP%\svhost.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '35d1703cd61867afaf567473dc316f87' = '"%TEMP%\svhost.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\35d1703cd61867afaf567473dc316f87.exe
Creates the following files on removable media:
- <Drive name for removable media>:\35d1703cd61867afaf567473dc316f87.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\svhost.exe' = '%TEMP%\svhost.exe:*:Enabled:svhost.exe'
Creates and executes the following:
- '%TEMP%\svhost.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\svhost.exe" "svhost.exe" ENABLE
Modifies file system :
Creates the following files:
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.new
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\google[1]
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.new
- %TEMP%\svhost.exe
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\google[1]
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\35d1703cd61867afaf567473dc316f87.exe
- %TEMP%\svhost.exe
- <Full path to virus>
Deletes the following files:
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\google[1]
Moves the following files:
- from %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.new to %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch
- from %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.new to %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch
Network activity:
Connects to:
- 'localhost':1039
- 'sa####m.hopto.org':1177
- 'localhost':1036
- '74.##5.232.51':80
TCP:
HTTP GET requests:
- 74.##5.232.51/
UDP:
- DNS ASK sa####m.hopto.org
- DNS ASK www.google.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'MS_AutodialMonitor' WindowName: '(null)'
- ClassName: 'MS_WebcheckMonitor' WindowName: '(null)'
- ClassName: 'Indicator' WindowName: '(null)'
- ClassName: '' WindowName: '(null)'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: 'IEFrame' WindowName: '(null)'
