How to Tell if a Redirect Sends You Straight to Malware

Redirects are everywhere on the modern web, and most of the time they are perfectly benign. A simple tap on a link in a search result, a banner ad, or a social media post will typically fire off an HTTP 301 or 302 that whisks you from one domain to another before your browser even finishes rendering the page. For the average Aussie scrolling through their phone during the arvo commute, the entire chain is invisible and instantaneous.

But a growing share of those chains do not lead where they claim. The Australian Cyber Security Centre regularly publishes advisories noting that malvertising campaigns, compromised WordPress installs, and SMS-borne Flubot-style lures all rely on multi-hop redirects to disguise their final destination. By the time your browser lands on the actual payload page, the original URL you clicked may have bounced through three or four different servers in different jurisdictions.

A redirect that ends in a malware download typically looks ordinary to a casual eye, but it leaves fingerprints. Learning to spot those fingerprints, from the structure of the URL to the headers the server returns, can be the difference between closing the tab and calling a mate who works in IT to recover your files.

The good news is that you do not need a degree in cybersecurity to perform a basic check. A handful of free tools, a curious mindset, and a healthy distrust of unexpected downloads will cover most cases. What follows is a practical guide for Australians who want to figure out, before they click Save, whether that redirect is going to dump something nasty onto their hard drive.

Spotting the Shape of a Suspicious Redirect

Most legitimate redirects are clean. The URL you click may be a short domain followed by a path and maybe one or two query parameters, and the chain itself is usually no more than one or two hops. Malicious redirects tend to be visibly messier, because the operators want to frustrate analysis while still passing automated reputation checks for as long as possible.

Look closely at the URL bar. If the domain is a known shortener like bit.ly or t.co, that alone is not a red flag, but a redirect that starts on a shortener and then chains through another shortener, then through a parked-looking domain with random characters, is asking for trouble. Pay attention to the length and the use of base64-looking strings, percent-encoded characters that do not decode to readable words, and parameter names that look auto-generated. A guide on obfuscated URL parameters walks through one common encoding trick that attackers reuse across thousands of campaigns.

TLDs matter too. While .com.au and .gov.au domains are not immune, the payloads you really want to avoid tend to live on cheaper or newer generic TLDs that registrars hand out without much verification. Watch for domains registered within the last few months, especially when the registration data shows a privacy proxy and a registrar in a jurisdiction known for abuse.

Inspecting the Chain with Browser Tools

Before you click anything risky, right-click the link and copy its address rather than following it. Paste it into a service like VirusTotal, URLVoid, or Google Safe Browsing's diagnostic page to get a quick second opinion. If the link comes from a message or a forum post, you can usually preview the redirect chain without ever loading the destination, which keeps your browser from executing any malicious JavaScript along the way.

For a deeper look, open your browser's developer tools and switch to the Network tab before you click. Each request is logged with its full URL, status code, and the Location header that triggers the next hop. A clean chain shows a handful of 200 responses for resources on the same domain. A suspicious chain will show repeated 301s and 302s bouncing between unrelated hosts, often with cookies set along the way. Some operators use cookies to decide whether to serve a benign page to bots or a malicious one to humans, a technique explained in cookies and visitor verification.

Australian ISPs also play a role here. The major networks, including Telstra, Optus, and TPG, run their own filtering layers that block known malware domains at the DNS level. If you are on a Telstra home NBN connection and your redirect suddenly fails to resolve, that is sometimes the network quietly doing you a favour. You can confirm by switching to a public resolver like 1.1.1.2, which is configured to block malware and adult content, and re-trying the URL in a sandbox.

Recognising Risky File Types and Download Triggers

Even after you have traced a redirect, the final test is what the destination actually tries to push at you. A clean marketing site might redirect you to a PDF brochure, a video, or a CMS-managed article. A malicious destination typically tries to serve an executable, a script, or a disguised archive.

On Windows, treat anything ending in .exe, .msi, .scr, .iso, .bat, .vbs, or .hta with extreme suspicion. On macOS, .pkg, .dmg, and .command files deserve the same caution. Archives such as .zip, .rar, and .7z are not inherently dangerous, but a .zip that contains a JavaScript file, a shortcut, or a hidden executable is a classic dropper pattern that has been hitting Aussie inboxes for years. Office documents with macros enabled, particularly .docm and .xlsm, are another common payload and are frequently used in ATO-themed lures around tax time.

Timing matters as well. Many campaigns ramp up around holidays, sporting events, and seasonal milestones, when people are distracted and more likely to click impulsively. A note on seasonal campaign timing highlights how attackers piggyback on calendars to bait victims, and the same principle applies to malware redirects timed around major sales events like EOFY or the Melbourne Cup.

Free Tools and Australian Reporting Channels

Plenty of reputable tools can sandbox a suspicious URL or file before you commit. VirusTotal aggregates dozens of antivirus engines and lets you upload a file or paste a link. Hybrid Analysis and Any.run go further with full sandboxed execution, showing you screenshots and process trees of what the payload actually does when it runs. For a quick reputation check on a domain, the Cisco Talos Intelligence lookup and AbuseIPDB are reliable starting points.

Australians also have access to local channels that global tools cannot replicate. Scamwatch, run by the ACCC, accepts reports on phishing and malicious redirects targeting consumers. ReportCyber, which sits with the Australian Cyber Security Centre, handles reports from individuals and businesses and feeds into law-enforcement investigations. If a redirect landed in your work inbox rather than a personal one, loop in your IT team early and forward the original message with full headers, because many of these lures arrive via work email compromise attempts that target payroll and HR staff.

Stay Smart Online, the ACSC's public awareness program, publishes plain-English guides that translate the latest advisories into steps a non-technical reader can follow. Signing up for the alert service is a fair go at staying ahead of the next big campaign, and the alerts are short enough to read during your morning brekkie.

Confirming and Containing a Suspected Infection

Even with all of the above, you may still slip up. Treat any uninvited download as a potential compromise until proven otherwise. Disconnect from the network to stop any callback traffic, then run a full scan with your antivirus and a secondary on-demand scanner like Malwarebytes. If the file executed before you could intervene, change the passwords for any accounts you had open in the browser at the time, starting with email and banking, and revoke active sessions from those services' security dashboards.

For businesses, the next step is to preserve evidence. Take screenshots, export browser history, and save the original email or message. The more context you can give to ReportCyber or to a managed detection provider, the better the chance of tracing the operator. Romance-themed scams that culminate in a malicious download are a recurring pattern reported to Scamwatch, and the social engineering playbook behind them is documented in detail in scam relationships.

Once the immediate fire is out, take ten minutes to review how the redirect reached you. Was it an ad on a mainstream news site, a compromised SEO result, an SMS pretending to be from Australia Post, or a DM from a friend whose account had been hijacked? Each vector suggests a different fix, from tightening your browser's pop-up and redirect settings to enabling two-factor authentication on your social accounts. The point is not to become paranoid but to close the gap that let the redirect through in the first place.

Tool	Best For	Cost	Sandboxing	Australian Mirror
VirusTotal	Quick file or URL reputation	Free	Limited	No
Hybrid Analysis	Behavioural analysis of executables	Free tier	Yes	No
URLVoid	Domain reputation across blocklists	Free	No	No
Google Safe Browsing	Diagnostic page for a URL	Free	No	N/A
Any.run	Interactive malware sandbox	Free tier	Yes	No
Talos Intelligence	IP and domain reputation	Free	No	No

Run that table against any redirect you are unsure about, pair it with a look at the URL bar and the Network tab, and you have a repeatable process that will catch the vast majority of malicious redirects before they reach your downloads folder. Bookmark the cyber.gov.au "Have you been hacked?" checklist today, share this guide with a mate who still clicks every link in their inbox, and remember that a careful arvo of reading beats a frantic evening on hold with your bank. The next campaign is already in someone's outbox, so start checking before you click.