300-220 Exam Dumps : Conducting Threat Hunting and Defending using Cisco Technologies for Cybersecurity 300-220 CBRTHD

The correct answer iscorrelating attacker behavior across multiple MITRE ATT&CK techniques. This approach focuses onbehavioral detection, which is the cornerstone of effective threat hunting and advanced security operations.

Attackers who abuse legitimate administrative tools—often referred to asliving-off-the-land techniques—intentionally avoid malware-based detections. File hashes, signatures, and known indicators provide minimal value because there may beno malicious files at all. Options A and D sit at the lowest levels of thePyramid of Pain, making them easy for adversaries to evade.

By correlating behavior across multiple ATT&CK techniques—such as credential access, lateral movement, privilege escalation, and command execution—defenders detecthowthe attacker operates rather thanwhat toolsthey use. This forces adversaries to fundamentally change tradecraft, which is costly, risky, and time-consuming.

Option C improves visibility but does not inherently raise attacker cost. Threat intelligence feeds are reactive and often lag behind active campaigns.

From a professional threat hunting perspective, correlating multiple low-signal behaviors into ahigh-confidence attack patternis how mature SOCs detect stealthy intrusions. This method also supports scalable detection engineering, improved alert fidelity, and reduced false positives.

This strategy directly aligns with higher tiers of theThreat Hunting Maturity Modeland the top of thePyramid of Pain, making optionBthe correct answer.

The correct answer isdocument findings and operationalize detections. In Cisco’s threat hunting methodology, confirmation of malicious activity isnot the end of the hunt.

The most critical next step is to:

Document attacker behavior

Identify detection gaps

Create or improve SIEM, EDR, or NDR detection rules

This ensures the organization does not repeatedly rediscover the same threat. Options C and D are incident response and communication activities, not threat hunting lifecycle steps. Option A skips the crucial improvement phase.

TheCBRTHD blueprintstrongly emphasizes:

Continuous improvement

Feedback loops

Detection engineering

By operationalizing findings, the SOC increases maturity and forces adversaries to change tactics.

Therefore,Option Bis correct.

The correct answer isendpoint memory access telemetry. Credential dumping often involves accessing sensitive memory regions, such as LSASS, rather than deploying obvious malware.

Modern attackers frequently use:

Legitimate tools

In-memory techniques

Living-off-the-land binaries

These methods bypass file-based detection entirely. Email, DNS, and firewall logs provide limited visibility into memory-level abuse.

Endpoint memory telemetry enables detection of:

Unauthorized LSASS access

Suspicious handle requests

Abnormal process injection

This telemetry is foundational for detectingcredential access techniquesin modern environments. Therefore, optionBis correct.