Google Search Malvertising: The Hidden Tactics Behind Misleading Ads

In the digital age, online ads have become a ubiquitous part of our browsing experience, often leading us to products, services, and information with just a click. However, lurking beneath the surface of these seemingly innocent advertisements lies a more sinister threat: malvertising. Among the many platforms that serve ads, Google Search has become a prime target for malvertising. While Google has made strides to protect users, malvertising on its search engine continues to pose serious risks, often going unnoticed by the average user.

What is Malvertising?

Malvertising, a portmanteau of “malicious advertising,” occurs when cybercriminals inject malware into users’ devices through compromised ads. These ads can lead unsuspecting users to harmful websites where their personal information is at risk, or malware is unknowingly downloaded onto their computers. Victims are often tricked by the ad’s legitimate appearance, only to be redirected to fraudulent, copycat websites. While Google works to monitor and regulate its ads, hackers frequently manage to keep their malicious ads running for hours or even days before they’re detected. These deceptive ads blend seamlessly with legitimate sponsored search results on Google. However, malvertising is not exclusive to Google— it can also appear on popular websites that have been hacked or in social media feeds, putting users across the web at risk.

How does it work?

Malvertisements are circulating online, appearing on both legitimate and illegitimate websites.

Frequently, advertisers might overlook the harmful intentions of an advertisement, causing them to proceed with running it assuming it is harmless. When the ad is approved by the advertiser, it is sent out to reputable websites through a server. Once the malvertisement is clicked by a user, harmful codes are triggered in the background, which could lead to the installation of malware on their device. This procedure is recognized as a drive-by download.

Tips on Protecting Yourself

To safeguard yourself from the dangers of malvertising, it’s important to take proactive steps to enhance your online security and stay vigilant while browsing.

1. Examine URLs Closely

Be sure to carefully check any links for suspicious details including the URL links on the online ads as there may be small spelling errors.

2. Access Websites Directly

A surefire way to stay safe is by avoiding clicking on any ads. Instead, simply bypass the links and go straight to the source, visit the brand’s website directly.

3. Utilise a DNS Filter

A DNS filter safeguards you from unintended clicks by directing your browser to a warning page if it identifies a threat. It monitors for signs of danger and blocks harmful sites, ensuring protection even if you accidentally click on a malvertising link.

4. Avoid Logging in After Clicking on an Ad

Malvertising often directs you to a counterfeit site that closely resembles the real one. These fake login pages are designed to steal your credentials. If you click on an ad, avoid entering your login details on the site, even if it appears authentic. Instead, open a new browser tab and visit the brand’s official website directly.

5. Avoid Phone Numbers in Ads

Phishing scams can extend beyond the internet, with some deceptive ads displaying phone numbers to trick unsuspecting individuals. Seniors are often targeted, with scammers using

these numbers to pose as legitimate callers and extract personal information. To stay safe, avoid dialling any phone numbers found in online ads. If you receive a call from one, do not share any personal details—just hang up. These scams rely on emotional manipulation and trust, so it’s important to remain cautious and protect your information.

6. Avoid Downloading from Ads

Never click on a download link in an online ad, as these are often fraudulent and could compromise your device.

7. Alert Others About Malvertising

It’s essential to stay informed and share your knowledge with others. By promoting a cyber-aware community, you contribute to better online security and help raise awareness about emerging scams.

While Google Search remains a trusted tool for millions, malvertising serves as a hidden threat lurking within its sponsored ads. Cybercriminals exploit these ads to mislead users and deliver malicious content, often with devastating consequences. By understanding the tactics behind these deceptive ads and staying vigilant, users can better protect themselves from falling victim to scams and malware. As digital security continues to evolve, it’s crucial to adopt safe browsing habits, use security tools, and share knowledge with others to create a more informed and secure online environment. Ultimately, awareness and caution are the best defences against the dangers of malvertising.

Partner with us for safe, effective Google Ads that drive real results and protect your business from malvertising risks—contact us on 064 807 7268 or email us at hello@polkadotdigital.co.za