Antivirus software

A program that detects, blocks and removes malicious programs from a device.

Part of: VCE Applied Computing - U2O2 - Cyber Security — Module 10, 7-8 Digital Technologies Vic Curric - Digital Systems and Security — Module 72, 9-10 Digital Technologies Vic Curric - Digital Systems and Security — Module 52, VCE Data Analytics - U4O2 - Cyber Security: Data Security — Module 51, IGCSE Computer Science 0478 — 4.1 Types of Software and Interrupts — Module 9, IGCSE Computer Science 0478 — 5.3 Cyber Security — Module 33, ACARA Digital Technologies Years 7–8 — Networks and Cyber Threats — Module 30, ACARA Digital Technologies Years 9–10 — Networked Systems and Access Control — Module 134, ACARA Digital Technologies Years 9–10 — Cyber Security Threats and Vulnerabilities — Module 85, WA Computer Science ATAR Year 11 — Network Communications — Module 121, WA Computer Science ATAR Year 11 — Cyber Security — Module 126

Understanding Antivirus software in VCE Cyber Security

What it does: This describes exactly what quarantine means in antivirus software. Real-time scanning checks activity as it happens, not just on a schedule. Detecting malware is a core function of antivirus software. Once detected, antivirus software can remove malicious files. Quarantine isolates a suspicious file rather than deleting it outright. Updates keep the signature database current against new malware. Scheduled scanning lets a device be checked at regular intervals. Antivirus software's purpose is protection, not creating threats.

Common mistakes: Storing web pages is a server's job, not antivirus software's job. Antivirus software does scan files - that's how it finds malware.

Class: _____________________ · Name: _____________________ · Date: _________

Free printable worksheet with full answer key — or add this module to a class and your students practise it interactively.

🖨 Print worksheet + answer key Add Antivirus software to a class →

This module's key terms are also in a printable crossword (Modules 1–10) and word search (Modules 1–20).

Take this worksheet further — free with Cloodit

Each concept is reinforced from every angle — learned, then applied, then tested.

Learning

Duo

Does antivirus software detect malicious programs?

YesNo

Matches

Antivirus software never needs to scan a device

↓

Wrong - scanning for malware is its main function

Applying

Meanings

Term

Antivirus software

Meaning

A program that detects, blocks and removes malicious programs from a device.

Practice

Antivirus software scans a device.

Testing

Gaps

Antivirus software malware

Check Answer

Spots

1Antivirus stores web pages

2It detects malicious programs

Cloodit turns curriculum-aligned coding content into journeys students work through one biome at a time.

Students earn collectable badges

Over 100 of them, across seven natural biomes.

Study Buddy

Students build a real study resource

Turns their work into revision material ready for Flash Cards and Exam study.

Diamond Dash — one of Cloodit's live, competitive Sprint games

Students lock in with Sprints

Live, competitive practice for the start of the lesson or a teacher-led lesson finisher.

A Cloodit certificate of achievement, ready to personalise and print

Custom printable certificates

Honour your top performers, or encourage a student who's trying hard — ready to print in seconds.

Add to class →

Quick Questions

1. Does antivirus software detect malicious programs?

A. Yes ✓

B. No

Detecting malware is a core function of antivirus software.

2. Can antivirus software remove malware from a device?

A. No

B. Yes ✓

Once detected, antivirus software can remove malicious files.

3. Does antivirus software use a signature database to find malware?

A. No

B. Yes ✓

Signatures let antivirus software recognise already-known malware.

4. Can antivirus software scan a device in real time?

A. Yes ✓

B. No

Real-time scanning checks files continuously as they are used.

5. Does quarantine mean permanently deleting a file immediately?

A. No ✓

B. Yes

Quarantine isolates a suspicious file rather than deleting it outright.

Match the Pairs

Antivirus software → Detects, blocks and removes malicious programs from a device

Signature database → A stored collection of known malware patterns used for detection

Isolating a suspicious file so it cannot cause harm → Quarantine

Continuously checking files as they are accessed → Real-time scanning

Antivirus software never needs to scan a device → Wrong - scanning for malware is its main function

Antivirus software creates new malware to test itself → Wrong - antivirus software defends against malware, it doesn't create it

Key Term

Antivirus software

A program that detects, blocks and removes malicious programs from a device.

Fill in the Blanks

1. Antivirus software detects malware

Hint: Type the word for identifying a threat.

2. Antivirus software can block malware

Hint: Type the word for stopping malware from running.

3. Antivirus can remove malware from a PC

Hint: Type the word for deleting malware from a device.

4. Antivirus software uses a signature database

Hint: Type the word for the stored collection of known malware signatures.

5. Antivirus can quarantine a threat

Hint: Type the word for isolating a suspicious file so it can't cause harm.

Spot the Error

Question 1

A Antivirus stores web pages

B It detects malicious programs

C It can remove malware

Line A — Storing web pages is a server's job, not antivirus software's job.

Question 2

A Antivirus detects malware

B It never scans any files

C It can quarantine threats

Line B — Antivirus software does scan files - that's how it finds malware.

Question 3

A Antivirus uses signatures

B It matches known malware

C It ignores all updates

Line C — Antivirus software needs regular updates to recognise new malware.

Question 4

A Antivirus scans files

B It can run in real time

C It can run on schedule

D It never removes malware

Line D — Removing malware is a core function of antivirus software.

Question 5

A Antivirus detects threats

B It blocks malicious code

C It can quarantine files

D It updates its signatures

E It causes all malware

Line E — Antivirus software protects against malware - it does not cause it.

Student with a class code? Join your class →