This article demonstrates how impacket-net uses three authentication paths—NTLM hash (Pass-the-Hash), Kerberos tickets, and AES keys—to enumerate and modify Active Directory objects against a domain controller in the ignite.local lab. It details user, group, computer, and local group operations, attacker persistence techniques, and mitigation strategies such as disabling machine account creation and monitoring directory change events. #impacket-net #ignite.local
Keypoints
- impacket-net supports NTLM hash, Kerberos ticket, and AES key authentication for AD enumeration and modification.
- Even low-privileged accounts can enumerate domain users, groups, and computers via SAMR responses.
- Attackers can create, disable, enable, and delete user and computer accounts and modify group memberships for persistence and escalation.
- Machine account creation and built-in local group changes enable tactics like resource-based constrained delegation and credential theft.
- Defensive measures include setting ms-DS-MachineAccountQuota to 0, enforcing LDAP signing/channel binding, and alerting on directory change events.
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