There are many types of malware, and one of the most common is called “malvertising.” This type of malware appears frequently on social media sites and various websites, including Google search results.
Two factors are making malvertising even more dangerous. First, hackers are using AI to create ads that look very believable. Second, the prevalence of malvertising is increasing; according to Malwarebytes, there was a 42% rise in malvertising from September to October 2023.
It’s important to educate yourself about this online threat. Knowledge is your best defense against malicious cybercriminals. Below, we will help you understand malvertising and provide tips on how to identify and avoid it.
What Is “Malvertising?”
Malvertising refers to the use of online advertisements for malicious purposes. A notable example occurred during the release of the PlayStation 5, which was in high demand and difficult to acquire. This created an ideal opportunity for hackers. Numerous malicious advertisements appeared in Google searches, misleading users into believing they were visiting official websites. Instead, these ads directed them to counterfeit sites that steal users’ credentials and credit card information.
Google actively tries to remove harmful ads, but hackers can keep them running for hours or even days before detection. These malicious ads look like regular sponsored search ads.
Malvertising isn’t limited to Google; it can also appear on compromised websites and in social media feeds.
Tips for Protecting Yourself from Malicious Online Ads
Review URLs Carefully
You may notice a small misspelling in the URL of an online ad. Similar to phishing, malvertising often uses copycat websites. Always examine any links for inconsistencies.
Visit Websites Directly
A reliable way to protect yourself from online scams is to avoid clicking on ads. Instead, visit the brand’s website directly. If they are genuinely having a “big sale,” it will be featured there. This advice applies to all types of phishing attempts. Just remember, don’t click on any links; always go straight to the source.
Use a DNS Filter
A DNS filter protects you from mistaken clicks. It will redirect your browser to a warning page if it detects danger. DNS filters look for warning signs. They, then block dangerous sites. This can keep you safe even if you accidentally click a malvertising link.
Do Not Log in After Clicking an Ad
Malvertising often leads users to counterfeit websites that can closely resemble legitimate ones. These phishing sites aim to steal login credentials, which can be highly profitable for cybercriminals, particularly for accounts related to popular services like Netflix, banks, and more.
If you click on an ad and are directed to a website, do not enter your login credentials, even if the site appears to be legitimate. Instead, open a new tab in your browser and navigate directly to the official website of the brand.
Don’t Call Ad Phone Numbers
Phishing can also occur offline. Some malicious advertisements display phone numbers to call, leading unsuspecting victims to connect with fake representatives involved in these scams. Seniors are often targeted by these malvertising schemes, and they may inadvertently reveal personal information during these phone calls.
To protect yourself, avoid calling any numbers listed in online ads. If you find yourself on a call, do not disclose any personal information—simply hang up. Remember, this is a sophisticated scam. The perpetrators often exploit emotions like fear and work hard to gain your trust.
Don’t Download from Ads
Beware of common malvertising scams like “Get a free copy of MS Word” or “Get a Free PC Cleaner.” These ads often lure you into clicking a download link that claims to offer popular software or freebies. However, clicking on such links can lead to your system being infected with malware, allowing hackers to cause further damage.
To stay safe, never download anything from online ads, especially those with direct download links, as they are frequently scams.
Warn Others When You See Malvertising
If you encounter a suspicious advertisement, make sure to warn others. This action can help keep your colleagues, friends, and family safer. If you’re unsure about an ad, try searching for it on Google; you might find scam alerts that confirm your concerns.
It’s important to stay informed and equip yourself with knowledge. You can share this information with others, fostering a cyber-aware community. This collective awareness helps everyone improve online security and stay updated on new scams that may arise.
Improve Your Online Security Today
Is your device up to date with security patches? Do you have a good anti-malware solution? Is DNS filtering installed to block dangerous websites?
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