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Writer's pictureAngus Stewart

Am I infected with Malware? And what do I do?


Virus attacks computer

In today's digital landscape, malware remains a persistent threat to our devices and data. Recognising the signs of a malware infection is crucial for maintaining your cybersecurity. Here are seven common indicators that your device may be compromised, along with steps to eliminate the threat.


1. Sluggish Performance


If your once-speedy device suddenly becomes sluggish, it could be a sign of malware. Malicious software often runs in the background, consuming system resources and slowing down your computer. While other factors like low disk space can cause slowdowns, a sudden and unexplained drop in performance warrants investigation.


2. Frequent Crashes and Errors


Malware can cause system instability, leading to frequent crashes, freezes, or error messages. If your device starts behaving erratically without any recent changes to hardware or software, it's time to consider the possibility of a malware infection.


3. Unexpected Pop-ups and Advertisements


An influx of pop-up ads, especially when you're not browsing the web, is a telltale sign of adware. These intrusive ads not only disrupt your user experience but can also lead to further malware infections if clicked.


4. Browser Hijacking


Malware often targets web browsers, causing unexpected behavior such as:


- Changed homepage or default search engine

- New toolbars or extensions you didn't install

- Frequent redirects to unfamiliar websites


If you notice any of these changes, your browser may be compromised.


5. Unusual Network Activity


Some types of malware communicate with remote servers, leading to increased network activity even when you're not actively using the internet. Monitor your network traffic for any suspicious spikes in data usage.


6. Disabled Security Software


Sophisticated malware may attempt to disable your antivirus software or firewall to avoid detection. If you find that your security tools are consistently being turned off or aren't functioning correctly, it could indicate a malware infection.


7. Missing or Encrypted Files


Certain malware variants, particularly ransomware, may encrypt or delete your files. If you suddenly can't access your documents or receive ransom demands, your device may be infected with malware.


How to Get Rid of Malware


If you suspect your device is infected, follow these steps to remove the malware:


1. Disconnect from the internet: This prevents the malware from spreading or communicating with its command and control servers.


2. Enter Safe Mode: Restart your device in Safe Mode to prevent malware from loading with the operating system.


3. Clear your browser cache and temporary files: This can help remove some types of browser-based malware.


4. Update your security software: Ensure your antivirus and anti-malware tools are up-to-date.


5. Run a full system scan: Use your updated security software to perform a comprehensive scan of your device.


6. Remove suspicious programs: Uninstall any unfamiliar or suspicious applications from your device.


7. Change your passwords: After removing the malware, change passwords for all your important accounts, especially if you suspect your login credentials may have been compromised.


8. Keep your software updated: Regularly update your operating system and applications to patch security vulnerabilities.


Prevention is Key


While knowing how to remove malware is important, preventing infections in the first place is even better. Here are some best practices:


- Use reputable antivirus software and keep it updated

- Be cautious when opening email attachments or clicking on links from unknown sources

- Avoid downloading software from untrusted websites

- Regularly back up your important data

- Use a firewall to monitor incoming and outgoing network traffic


By staying vigilant and following these preventive measures, you can significantly reduce your risk of malware infections and keep your digital life secure.


And remember - Angus PC Repairs is always here to help

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