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Section 6 – Enumeration
50 51
Enumeration involves active connection to
systems and directed queries. It is conducted
in an intranet environment. Usernames,
machine names, network resources, shares
and services are scanned. The type of
information enumerated by intruders are
network resources and shares, users and
groups, applications and banners, and
auditing settings.
Services to Enumerate
• TCP 53 – DNS
• TCP 135 – RPC
• TCP 137 – NetBIOS
• TCP 139 – NetBIOS
• TCP 445 – SMB
• UDP 161 – SNMP
• TCP/UDP 389 – LDAP
• TCP 25 – SMTP
• UDP 123 – NTP
SNMP – is often a good indicator in finding a
ton of information about a specific system or
50 Certified Professional Ethical Hacker Workbook v5 Volume 2,
Mile2, 60-67.
51 Certified Penetration Testing Engineer Workbook v5 Volume 1,
Mile2, 229-240.
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