There are many types of malware, and one of the most common is "malvertising." This type of malware appears in various places, including social media sites, websites, and even Google searches.
Two factors make malvertising even more dangerous. First, hackers are using AI to make these ads look incredibly realistic. Second, malvertising is on the rise—according to Malwarebytes, it saw a 42% increase in the fall of 2023 (month over month).
It’s crucial to stay informed about this online threat. The more you know, the better you can protect yourself, especially against malicious cybercriminals. Below, we’ll help you understand malvertising and offer tips on how to identify and avoid it.\
What Does "Malvertising" Mean?
Malvertising refers to the use of online ads for malicious purposes. A prime example occurred when the PlayStation 5 was first released. Due to its high demand and limited availability, hackers saw an opportunity to exploit the situation. Several malicious ads appeared on Google searches, designed to resemble official sites. However, these ads led users to counterfeit websites created by criminals to steal user credentials and credit card information.
Although Google tries to monitor its ads, hackers can sometimes keep their ads active for hours or even days before they are detected. These ads look just like any other sponsored search ad on Google.
Malvertising isn’t limited to Google. It can also appear on popular websites that have been hacked or on social media feeds.
Tips to Safeguard Against Malicious Ads
Inspect URLs Before Clicking
You may notice a slight misspelling in an online ad’s URL. Similar to phishing, malvertising often uses copycat websites to deceive users. It's important to carefully examine any links to spot anything that seems unusual or off.
Visit Websites Through Their Official Links
A foolproof way to protect yourself is to avoid clicking on any ads. Instead, visit the brand’s official website directly. If there’s a legitimate “big sale,” it will be featured there. This approach is effective for all types of phishing—simply bypass the ads and go straight to the source.
Enable DNS Filtering
A DNS filter helps protect you from accidental clicks by redirecting your browser to a warning page if it detects a threat. These filters scan for warning signs and block dangerous sites, keeping you safe even if you unintentionally click on a malvertising link.
Never Log in Right After Clicking an Ad
Malvertising often directs you to a copycat site that may look identical to the real one. Phishers are often after login credentials, as they can sell access to high-value sites like Netflix, banks, and more.
If you click on an ad and land on a site asking for your login details, avoid entering your credentials—even if the site appears legitimate. Instead, open a new browser tab and visit the brand’s official website directly.
Avoid Calling Phone Numbers from Ads
Phishing can also occur offline, with some malicious ads providing phone numbers to call. Victims may not realize that the individuals on the other end are part of the scam. Seniors, in particular, are often targeted by these malvertising schemes. They may end up sharing personal information with the fake representatives.
The best practice is to avoid calling phone numbers listed in online ads. If you find yourself on a call, never share any personal information—just hang up. Remember, these are elaborate scams that prey on emotions like fear and work to gain your trust.
Avoid Downloading Files from Ads
"Get a free copy of MS Word" or "Get a free PC Cleaner" are common malvertising scams. These ads entice users to click on a download link, which promises a popular program or freebie. However, the link often injects malware into your system, allowing the hacker to cause further damage.
Never click to download anything from an online ad. If you see an ad with a direct download link, it's likely a scam.
Inform Others When You Spot Malvertising
If you come across a suspicious ad, warn others to help keep your colleagues, friends, and family secure. If you're unsure, try searching the ad on Google. You'll often find scam alerts that confirm your suspicion.
Being proactive and educating yourself is key. Share this knowledge with others to create a cyber-aware community. This not only strengthens everyone's online security but also helps raise awareness of new scams as they emerge.
Protect Your Business from Malvertising with Ayvant IT Service
Malvertising is a growing threat that uses deceptive online ads to steal sensitive information, and it’s becoming harder to detect as hackers use advanced techniques like AI to make these ads look legitimate.
To safeguard your business and personal data, it’s essential to stay vigilant by inspecting URLs, avoiding downloads from ads, and using DNS filtering. If you’re unsure how to protect your business from this threat, Ayvant IT Service is here to help.
Our cybersecurity solutions can help you secure your network and keep your systems safe from malvertising and other online threats. Contact us today! to learn more about how we can enhance your security.
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