Port Authority Edition , Internet Vulnerability Profiling
https://www.grc.com/x/ne.dll?bh0bkyd2
www.grc.com
1.) Klicke--> Proceed
2.) All Service Ports
open --> geöffnet (möglicher Backdoor oder Trojaner)
closed --> geschlossen (aber sichtbar..nicht zu empfehlen)
stealth --> geschlossen + unsichtbar (zu empfehlen)
3.) File Sharing + NetBois (offene Ports überprüfen)
File Sharing
4.) Checking the Most Common and Troublesome Internet Ports
Common Ports
Beispiel:
GRC Port Authority Report created on UTC: 2005-12-29 at 21:58:09
Results from scan of ports: 0, 21-23, 25, 79, 80, 110, 113,
119, 135, 139, 143, 389, 443, 445,
1002, 1024-1030, 1720, 5000
1 Ports Open
13 Ports Closed
12 Ports Stealth
---------------------
26 Ports Tested
The port found to be OPEN was: 445
Ports found to be STEALTH were: 0, 21, 22, 23, 25, 79, 80, 110,
113, 119, 135, 139