What is Lateral Movement?
Lateral movement is the attack phase where adversaries expand access from an initial foothold to additional systems, using compromised credentials, exploits, or trusted protocol abuse to reach higher-value targets.
Definition
- Lateral Movement
- Lateral movement is the attack phase where adversaries expand access from an initial foothold to additional systems, using compromised credentials, exploits, or trusted protocol abuse to reach higher-value targets.
How Lateral Movement Works
After establishing an initial foothold via phishing, exploit, or compromised credentials, attackers rarely have immediate access to their ultimate target. Lateral movement bridges the gap. Common techniques: Pass-the-Hash (using captured NTLM hashes without knowing plaintext), Pass-the-Ticket (Kerberos ticket theft and reuse), remote execution tools (PsExec, WMI, PowerShell remoting), legitimate remote protocols (RDP, SSH, VNC), and exploitation of trust relationships between systems.
Attackers try to blend with normal administrative traffic, using the same protocols admins use (SMB, WMI, RDP) but in anomalous patterns: connecting to systems outside normal scope, at unusual hours, or in rapid sequences. Behavioral detection (NDR, UEBA) is more effective than signature detection for lateral movement.
Network segmentation is the primary architectural control: if systems are segmented and only allowed to communicate with required services, a compromised workstation cannot directly reach servers in a different segment.
Lateral Movement in SOC Operations
Lateral movement detection is critical because it represents the attacker expanding access before achieving their objective. Detecting lateral movement early, before the attacker reaches domain controllers, backup systems, or sensitive data stores, dramatically limits blast radius. You investigate by correlating authentication logs, network connections, and remote execution events across multiple hosts to map the movement path.
Practice Lateral Movement in a Real SOC
SOCSimulator provides hands-on training with realistic SIEM, XDR, and Firewall interfaces. Build real analyst skills investigating lateral movement scenarios with zero consequences — free forever.
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