3 Malware Prevention and Response Free Online FlashCards

What is malware?

Malware is software or code intended to harm a device, disrupt its operation, or gain unauthorized access to data.

How does a computer virus spread?

A virus attaches to a file or program and spreads when that host is run or shared.

Why can unpatched software lead to malware infection?

Unpatched operating systems, applications, or devices can be exploited to install malware. Keeping them updated helps close known vulnerabilities.

Do unusual device behaviors prove that malware is present?

Slowdowns, crashes, unexpected pop-ups, unfamiliar apps, or security tools stopping can be warning signs, but none proves malware is present.

How does least privilege reduce malware risk?

Use a standard account for everyday work and grant applications only the permissions they need. This limits the damage if an application is compromised.

What should you do first when you suspect a device is infected?

Stop sensitive activity and disconnect the device from Wi-Fi or the wired network. Isolation can help prevent malware from spreading.

What distinguishes a worm from a virus?

A worm spreads between systems, often across a network, without requiring someone to copy an infected file.

How does a Trojan horse deceive users?

A Trojan horse disguises itself as a legitimate program or file to trick someone into installing or running it.

What does ransomware do?

Ransomware locks or encrypts files and may demand payment; attackers may also threaten to publish stolen data.

What information can spyware and keyloggers collect?

Spyware and keyloggers secretly collect information, such as browsing activity or keystrokes.

What is a rootkit's purpose?

A rootkit hides malicious activity and may help an attacker maintain privileged access.

How should you verify a suspicious message from a familiar sender?

Verify the request through a separate, trusted contact method; do not use the message's link or phone number.