SNMP udp 162 and 162

snmpwalk -v 2c -c public 10.129.42.253 1.3.6.1.2.1.1.5.0

iso.3.6.1.2.1.1.5.0 = STRING: "gs-svcscan"
SNMP
CommandDescription
snmpwalk -v2c -c <community string> <FQDN/IP>Querying OIDs using snmpwalk.
onesixtyone -c community-strings.list <FQDN/IP>Bruteforcing community strings of the SNMP service.
braa <community string>@<FQDN/IP>:.1.*Bruteforcing SNMP service OIDs.

Look up OID’s

https://www.alvestrand.no/objectid/

SNMPwalk

mstrkoffee@htb[/htb]$ snmpwalk -v2c -c public 10.129.14.128

OneSixtyOne

mstrkoffee@htb[/htb]$ sudo apt install onesixtyone
mstrkoffee@htb[/htb]$ onesixtyone -c /opt/useful/SecLists/Discovery/SNMP/snmp.txt 10.129.14.128

Scanning 1 hosts, 3220 communities
10.129.14.128 [public] Linux htb 5.11.0-37-generic #41~20.04.2-Ubuntu SMP Fri Sep 24 09:06:38 UTC 2021 x86_64

Braa

mstrkoffee@htb[/htb]$ sudo apt install braa
mstrkoffee@htb[/htb]$ braa <community string>@<IP>:.1.3.6.*   # Syntax
mstrkoffee@htb[/htb]$ braa [email protected]:.1.3.6.*