My Computer Has a Virus — What to Do Right Now (Melbourne Guide)

Your computer is behaving strangely. It is slow, there are pop-ups you cannot get rid of, your browser homepage has changed, or your antivirus is showing scary warnings. The first thing to know: do not panic. The second thing: do not ignore it. Most malware infections are completely fixable, but they get worse the longer you wait. Here is exactly what to do.

Step 1 — Stop What You Are Doing Immediately

If you suspect your computer has a virus, stop browsing, stop entering passwords, and stop doing anything financial or sensitive. Some malware is designed to record every keystroke you make — meaning your banking passwords, email passwords, and any sensitive information you type while the malware is active could be captured. The first priority is to minimise what the malware can see and do.

Step 2 — Disconnect From the Internet

Pull out your ethernet cable or turn off your Wi-Fi. This stops two things: it stops the malware from sending your data to criminals, and it stops it from downloading additional malicious software or instructions. Many modern malware infections are staged — the initial infection downloads additional components — and disconnecting stops this process.

Step 3 — Do Not Turn the Computer Off Yet

This might seem counterintuitive, but turning the computer off can destroy evidence and make diagnosis harder. Some malware also survives restarts and becomes harder to detect after one. Leave the computer on but disconnected from the internet while you decide your next step.

What the Symptoms Actually Mean

Different symptoms suggest different types of infection. Pop-up advertisements everywhere, including on websites that normally do not have them — this is typically adware, annoying but usually not dangerous to your data. Your browser homepage has changed and searches redirect to different sites — browser hijacker, also usually not a data threat but a sign of poor security hygiene. Computer dramatically slower, fan running constantly, using lots of battery — could be cryptomining malware using your computer to mine cryptocurrency for criminals. Ransomware will make itself very obvious — you will see a message demanding payment in return for access to your files. And spyware designed to steal financial information often has no symptoms at all — it runs silently.

Can You Fix It Yourself?

For simple adware and browser hijackers, running a reputable malware scanner — Malwarebytes Free is a legitimate tool — after reconnecting briefly to download it, may remove the infection. For anything more serious — ransomware, spyware, persistent infections that keep coming back — professional removal is safer. The risk with DIY removal of serious malware is that partial removal can leave components behind, give you false confidence that the infection is gone, and allow ongoing data capture you are unaware of.

When to Call a Professional

Call a professional if you see a ransomware demand — do not pay without professional advice, as payment does not guarantee file recovery and may expose you to further fraud. Call a professional if you have done any banking or entered any passwords since noticing the symptoms — credentials may need to be changed and accounts monitored. Call a professional if the infection keeps coming back after you run removal tools — this indicates a persistent rootkit or a reinstaller component that standard tools miss. And call a professional if the computer is used for work or contains sensitive client or financial data — the stakes are higher and a thorough clean is worth it.

Getting Help in Melbourne

IntrusionX provides professional malware removal across Melbourne — remote assessment is available immediately, and we can usually tell you within 30 minutes what you are dealing with and whether it is something you can handle yourself or whether professional removal is warranted. We also check for any signs that your data or credentials were captured during the infection. Call us on +61 499 468 971 for immediate help, or fill in the contact form for a same-day callback.

After the Infection Is Cleared

Once the malware is removed, there are some important follow-up steps. Change passwords for any accounts you accessed during the infection period — particularly email and banking. Check your bank and credit card accounts for any transactions you do not recognise. Enable multi-factor authentication on your email and banking accounts if you have not already done so — this means that even if your password was captured, attackers cannot access your account without the second factor. And consider what allowed the malware to get in — a clicked link in a phishing email, a downloaded file from an untrustworthy source, or outdated software with unpatched vulnerabilities — and address that underlying issue to prevent reinfection.