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Intego has reported the known-malicious search results to Google. It may not be an impossible task, but it’s certainly a significant challenge to try to keep all potentially harmful content from appearing in search results. If a Web server determines that Google is crawling the site, it may present an entirely different page from the one you might see if you go directly to the URL in your browser-and that page may be different from the page you’d see if you click on a link in Google search results (meaning is the “referrer”), as was the case with this campaign. Even if Google had scanned the site for known malware before indexing it, Google wouldn’t have found any, because the malware was brand new and as-yet undiscovered.įor another thing, pages are often designed to dynamically present different content depending on the context. Search engines face numerous challenges in trying to prevent poisoned search results that lead to malware.įor one thing, malware is constantly changing in order to evade detection, as evidenced by this new malware campaign. Can’t Google stop this?Īlthough in this particular case the malware was found via Google search results, the same thing could happen with any search engine: Bing, Yahoo!, DuckDuckGo, Startpage, Ecosia, or any others. Like the new Shlayer variant, CrescentCore was a Trojan horse disguising itself as a Flash Player installer. Last year, Intego was also the first to discover OSX/CrescentCore, another example of search results leading to Mac malware. This is far from the first time that search engine results have led to in-browser fake dialog boxes and malicious downloads this has been happening for more than a decade.

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This newly re-engineered malware purports to be a legitimate Flash Player installer, but it has the capability to surreptitiously download and install additional unwanted packages containing adware or spyware. While searching Google for the exact titles of YouTube videos, Intego’s research team encountered Google search results that, when clicked, pass through multiple redirection sites and end up on a page that claims the visitor’s Flash Player is out of date, and displays deceptive warnings and fake dialog boxes to entice the victim to download a supposed Flash Player updater-which is, in fact, a Trojan horse. Is this malware in the wild? How does it spread?

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zip file, and to hide that within a bash shell script, is a novel idea-and it is also extremely clear evidence that the developers are trying to evade detection by antivirus software. The developers’ decision to hide the Mac.

Once the Mac app launches, it downloads a legitimate, Adobe-signed Flash Player installer, so that it can appear to be genuine-but the hidden Mac app is designed to also have the capability to download any other Mac malware or adware package, at the discretion of those controlling the servers to which the hidden Mac app phones home. All this takes place within a split second. After installing the Mac app into a hidden temporary folder, it launches the Mac app and quits the Terminal.

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zip archive file, which contains a traditional (though malicious) Mac. zip fileĪs the script runs, it extracts a self-embedded, password-protected. dmg disk image, masquerading as an Adobe Flash Player installer.Ī portion of the script’s code, showing the beginning of the embedded. What does the new malware do? How is it unique?Īs is commonly seen in Mac malware, this newly updated Shlayer malware is delivered as a Trojan horse application on a.

What is known about the creators of this malware?.

Are there a lot of victims of this specific malware?.

How does the malware bypass protections built into macOS?.

Is this malware in the wild? How does it spread?.

What does the new malware do? How is it unique?.

Intego identifies the new malware as unique new variants of OSX/Shlayer (the original variant of which was first discovered by Intego in 2018) and OSX/Bundlore (with similarities to past versions of OSX/MacOffers and Mughthesec/BundleMeUp/Adload).

Intego VirusBarrier is the first anti-malware solution that is known to detect and remove this malware. The new malware tricks victims into bypassing Apple’s built-in macOS security protections, and it uses sneaky tactics in an effort to evade antivirus detection.Īs of Friday, the new malware installer and its payload had a 0/60 detection rate among all antivirus engines on VirusTotal. Intego has discovered new Mac malware in the wild, actively spreading through malicious results in Google searches. Malware New Mac malware reveals Google searches can be unsafe