Many problems and problem solutions on the Internet are related to the so-called SSDP search service. This causes high CPU-Auslastungen der svchost.exe, öffnet Sicherheitslücken unter Windows XP oder sendet unbekannte Daten nach außen. Es wird in Communities regelmäßig zu dessen Deaktivierung geraten. Was genau dahintersteckt wissen die wenigsten – hier möchte Windows-Tweaks mehr Licht in die Sache bringen:
The SSDP search service searches for so-called Universal Plug & Play-components (UPNP). In future, devices such as alarm systems, surveillance cameras, coffee machines, projectors, multimedia devices etc. will be networked with the PC via this UPNP protocol and controlled via it. Whether this will make sense in the future is another question, but this technology offers many interesting possibilities. The Simple Service Discovery Protocol – Suchdienst ist bei Windows XP standardmäßig eingeschaltet und fahndet bereits zu heutigen Zeiten (unnötigerweise) nach Geräten dieses digitalen Heimvernetzungssystem.
SSDP is a Multicast-search service and is used to search for audio and video files via Streaming (Live-Übertragung) auf den Rechner zu bringen. Diese Technik verschickt einmal eine Multimediadatei an mehrere Gruppen im Internet anstatt diese mehrfach an jeden einzelnen zu verschicken – Zwischenserver helfen bei dieser Verästelung der Daten. Dieses IP6-Verfahren entlastet die Lasten, die ein Server zu tragen hat. Da diese Techniken heute allerdings noch keine große Verwendung findet empfiehlt es sich aus folgenden Gründen den SSDP-Suchdienst zu deaktivieren:
To deactivate the SSDP search service
1. If you have the UPNP patch from Microsoft, a foreign user can access your PC via an overflow of the UPNP memory buffer and execute various programs. programs.
Click on the following page for information on the other operating systems: MS Security Bulletin MS01-059
2. Many network cards and routers cannot yet cope with UPNP, so it is easily possible for IP addresses of network computers to be seen on the Internet. Open gates (ports) therefore invite hackers to transfer dangerous programs.
3. Both the service and the firewall, which has to log these UPNP packets, cause an unusually high CPU load, as it is constantly searching for such devices.
Switch off the SSDP search service as follows: Click on Start/Control Panel/Administration/Services and double-click on SSDP search service. Select under Start type the entry Deactivated.
NOTE FOR NEW PUBLICATION: This article was produced by Sandro Villinger and comes from the Windows Tweaks archive, which has been built up since the late 1990s.
