| SG Security Scan |
| Scanning (185.186.9.21): |
| Port |
Status |
Service |
Description |
| 4433/tcp |
closed |
unknown |
Backdoor.Acidoor [Symantec-2003-022517-2102-99] (2003.02.25) - a backdoor trojan that gives a hacker unauthorized access to your computer. By default, it uses ports 4432 and 4433. The existence of the file Extapp.exe is the sign of a possible infection.
Axence nVision also uses this port
Versile Object Protocol [Versile_AS] (IANA official)  |
| 4433/udp |
closed |
unknown |
n/a |
| Total scanned ports: | 2 |
| Open ports: | 0 |
| Closed ports: | 2 |
| Filtered ports: | 0 |
| Login (or register free) for a more detailed security scan. |
| Our Security Scan found NO open ports. |
SG Security Scan complete in: 16.79 sec.
5,971,009 systems tested.
SG Security Scan engine v1.09 (2017.09.25).
| Port Status Legend |
|---|
| open |
Open ports offer services that are potentialy vulnerable to attacks! All ports should be closed or filtered, unless you specifically require some open (and know exactly what they are). |
| closed |
Ports in this category respond to our scan, however appear to be closed. This state offers medium security. It still reveals that your system is up, and might provide some additional fingerprinting information to potential intruders. |
| filtered |
Filtered ports do not respond to a portscan at all, they don't appear to exist. This is the best security level for your ports, as it provides no information about your system or its existence (a.k.a. black hole). |
filtered?
open|filtered |
Filtered UDP ports that do not respond to the scan.
Note that the UDP protocol is not lossless, and does not respond to all requests by definition.
Therefore, the lack of response does not guarantee that a port is being filtered.
We have send a few requests without response, and it is reasonable to believe the ports
in this state are filtered.
|
Notes:
List of all currently scanned ports and corresponding descriptions can be found - here -, as a part of our full known ports database.
You can scan any one single port by adding "?port=xxxxx" to the above URL, for example: www.speedguide.net/portscan.php?port=12345.
You can also specify the protocol(s) to scan, for example: www.speedguide.net/portscan.php?tcp=1&udp=1&port=12345
If the scan finds open ports, make sure you know what services are listening to them. Ask in our forums, check the ports database, use netstat as described here: How to find listening ports on my computer?
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