What Is Antivirus Software and Why You Need It | Jpress
In today’s digital age, our computers and mobile devices are always at risk from harmful software, often we called it malware. To protect our devices from the risk, Antivirus software is appeared and they act like a bodyguards to protect us. They are always working in the background, scanning for anything that suspicious and stopping the threats before they cause trouble. Whether you are watching video, shopping online, or just browsing, a good antivirus software will keeps your personal info safe and gives you one less thing to worry about.
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How Antivirus Software Protects You
Antivirus software tools typically offer two types of scans:
- On-Access Scanning (OAS):
Runs quietly in the background, checking files and processes in real time.
- On-Demand Scanning (ODS):
Activated manually or scheduled at your convenience, it performs a comprehensive sweep of your entire system.
What Antivirus Software Looks For
Modern antivirus software are designed to recognize a large amount of malware, including:
- Viruses
Self-replicating code that attaches to legitimate files, corrupting data and disrupting operations.
- Worms
Standalone programs that spread across networks, often via email attachments, consuming bandwidth and crashing systems.
- Trojans
Disguised as harmless applications, these let hackers slip inside your device to steal data or install additional malware.
- Spyware
Secretly records your activity, such as keystrokes and browsing habits, to steal sensitive information like passwords and credit card numbers.
- Ransomware
Locks your files or entire system until you pay a ransom, holding your data hostage.
- Adware
Bombards you with unwanted ads and tracks your online behavior to serve up targeted marketing.
- Scams
Includes phishing (fraudulent emails with malicious links or attachments) and pharming (redirecting you to fake websites without your knowledge).
- Spoofing & Remote Access Attacks
While antivirus can’t stop someone pretending to be you, it can block the malicious code they use, such as backdoors that give hackers full control over your machine
6 Virus Detection Techniques
- Signature-Based Detection
Compares files against a database of known malware “Fingerprints”. Fast and accurate for recognized threats.
- Heuristic Analysis
Examines code structures and behaviors to spot new or modified malware strains. Can catch zero-day threats but may produce false positives.
- Behavior-Based Monitoring
Watches for suspicious actions—like unauthorized file changes or strange network activity—and flags anything out of the ordinary.
- Cloud-Based Analysis
Sends questionable files to the vendor’s servers for rapid, large-scale testing. When a new threat is confirmed, updates are pushed out to all users instantly.
- Sandboxing Testing
Opens files in a secure, virtual environment to observe their behavior without risking your actual system. Safe files proceed; dangerous ones get quarantined.
- Host Intrusion Prevention System (HIPS)
Continuously monitors program actions on your computer, prompting you to allow or block activities that resemble known malware behavior.
The Benefits of Using Antivirus Software
- Comprehensive Threat Protection:
Shields you from viruses, ransomware, spyware, and more.
- Safer Browsing Experience:
Blocks harmful websites and suspicious downloads before they load.
- Identity Theft Prevention:
Guards your personal data—like banking and login credentials—from prying eyes.
- Enhanced System Performance:
Removes resource-hogging malware, helping your device run smoother and faster.
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