Is port 445 (SMB) dangerous?

Port 445 is classified as high risk. It is a common target for automated scanning and brute-force attacks. Restrict access to trusted IPs if exposure is necessary.

Should port 445 be open on my firewall?

Port 445 should only be open with strict firewall rules whitelisting trusted IP addresses. Enable rate limiting and intrusion detection systems.

What transport protocol does port 445 use?

Port 445 (SMB) uses the TCP transport protocol and falls under the File Transfer category.

:445 (TCP)

SMB

High Risiko

TCP — File Transfer

Ikhtisar Port

Nomor Port 445

Nama Layanan SMB

Protokol Transport TCP

Kategori File Transfer

Risiko Keamanan High

Rentang Port Well-Known (0-1023)

Apa itu Port 445?

Server Message Block. Provides shared access to files, printers, and serial ports over a network. Direct hosting of SMB over TCP without NetBIOS. Targeted by WannaCry and EternalBlue.

TCP File Transfer Umum Digunakan

Pertimbangan Keamanan

Port 445 (SMB) diklasifikasikan sebagai risiko tinggi. Port ini adalah target umum untuk pemindaian otomatis dan serangan brute-force. Jika harus diekspos, batasi akses ke alamat IP yang diketahui.

Rekomendasi: Gunakan aturan firewall untuk memasukkan IP tepercaya ke whitelist. Aktifkan pembatasan kecepatan dan deteksi intrusi.

Port Terkait — File Transfer

20 FTP Data 21 FTP Control 59 Private File Service 69 TFTP 82 XFER Utility 97 Swift-RVF 115 SFTP (Simple FTP) 117 UUCP Path

Istilah Terkait

ARP FTP HTTP ICMP IMAP NTP

SMB

Embed This Widget

Ikhtisar Port

Apa itu Port 445?

Pertimbangan Keamanan

Port Terkait — File Transfer

Istilah Terkait