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VirusTotal Knowledge Reveals How Malware Distribution Leverages Professional Websites, Apps

By Eduard Kovacs on August 04, 2022

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Google-owned malware evaluation service VirusTotal has printed a report displaying how risk actors abuse belief to bypass defenses and ship their malware.

In accordance with knowledge collected by VirusTotal, reputable web sites and purposes are sometimes leveraged for malware supply.

In some instances, reputable purposes and web sites are immediately abused. For example, the corporate discovered that 0.1% of reputable hosts for standard apps have distributed malware. As well as, 10% of the highest 1,000 Alexa domains have been noticed delivering suspicious information.

The apps themselves are additionally abused, with 4,000 samples analyzed by VirusTotal executing or packing reputable utility installers. Furthermore, 98% of the samples that included reputable installers of their PE sources had been malicious.

“Probably the most efficient social engineering methods consists of hiding malware by packaging it into set up packages with reputable software program. This turns into a provide chain assault when attackers get entry to the official distribution server, supply code, or certificates,” VirusTotal mentioned.

Whereas this system just isn’t as frequent as others, the corporate says it appears to be a ‘fixed and barely rising pattern’.

Since 2021, the corporate has recognized a couple of million malicious samples that had been signed, with 87% of them having a legitimate signature. Malware signed with stolen keys is probably going extra frequent than many count on.

VirusTotal has additionally reported seeing a rise in attackers mimicking reputable purposes, with Skype, Adobe Acrobat and VLC being essentially the most focused. In relation to mimicking reputable web sites, attackers have mostly focused WhatsApp, Instagram and Amazon.

“When fascinated about these methods as an entire, one may conclude that there are each opportunistic elements for the attackers to abuse (like stolen certificates) within the quick and mid time period, and routinely (almost certainly) automated procedures the place attackers goal to visually replicate purposes in numerous methods,” VirusTotal famous.

It added, “Though much less refined, the mixture impact of those methods may result in a much bigger mixed impression than extra complicated however much less voluminous assaults. That’s why it appears there are good candidates to observe at a world stage how malware attackers abuse them, which may additionally assist routinely detect suspicious samples earlier than they hit the sufferer.”

Associated: VirusTotal Shares Evaluation of 80 Million Ransomware Samples

Associated: VirusTotal Hacking Gives a Supercharged Model of Google Hacking

Associated: VirusTotal Introduces ‘Collections’ to Simplify IoC Sharing

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