Nofsinger Consultants have successfully found and eradicated a ransomware infection that impacted the engineering department's workstations. Now that the malware has been removed from the affected systems, what steps should be taken to verify that it has been completely eradicated?

Turn on automatic updating for malware databases with the signatures of newly found malware.

Install and configure a content filtering device to block malicious spam mail based on attributes such as content, name and type of attachment, origin of the mail, and its signature.

Run a manual system scan using anti$-$virus software to ensure removal of registry entries, scheduled tasks, and other files and folders related to the malware.

Update the rules for network appliances such as firewalls and routers with the IP addresses associated with malware distribution.