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Impair Defenses: Disable or Modify System Firewall

Defense Evasion [Mitre]

Adversaries may disable or modify system firewalls in order to bypass controls limiting network usage. Changes could be disabling the entire mechanism as well as adding, deleting, or modifying particular rules. This can be done numerous ways depending on the operating system, including via command-line, editing Windows Registry keys, and Windows Control Panel.

Modifying or disabling a system firewall …

Network Evasion

Exfiltration via SMTP is a technique where attackers leverage the Simple Mail Transfer Protocol (SMTP) to exfiltrate data. This method involves sending stolen data, such as sensitive files or system information, via email to an attacker-controlled email account. By using email traffic, attackers can often bypass traditional network monitoring solutions since SMTP traffic is usually deemed legitimate.

To execute …