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Security Operations · Intermediate

Log Tampering

Modifying, deleting or disabling logs to hide malicious activity.

Definition

Attackers clear event logs, stop logging services, alter timestamps or delete specific entries. Defenses include forwarding logs in real time to a centralized, write-once or access-restricted store, hashing logs and alerting on audit configuration changes. It maps to ATT&CK technique T1070 Indicator Removal.

Example

wevtutil cl Security run by an attacker before logging off.

Exam tip

Real-time forwarding to a SIEM is the best answer to protect logs from tampering.

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