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Mimecast Discovers Use-After-Free Zero-Day Vulnerability in Adobe Reader

dec 21, 2022

Adobe Acrobat Reader is one of the most popular PDF readers, and as such, it remains a target for potential exploitation attempts. This article details how the Mimecast Threat Research Labs team and I began debugging a zero-day vulnerability encountered during an investigation into reproducing 1-day vulnerabilities in Adobe Acrobat Reader. Anatomy of PDF Annotations in Adobe Reader Most modern ...

by Gil Mansharov

Dreigingsintelligentie

Hijacked from Within: The Ransomware Insider Threat

okt 31, 2022

Last June, a major ransomware operator launched a new version of its ransomware-as-a-service offering with an alarming twist. It had updated the Windows wallpaper placed on encrypted devices to display an offer to “earn millions of dollars” for providing the cybercrime gang with network access or other insider information that would help it “steal the most valuable data of any company.” [1] ...

by Dr. Matthew Canham

Dreigingsintelligentie

What Is a Botnet?

sep 22, 2022

Bots are everywhere these days; they handle a lot of the grunt work of the digital world. For instance, many companies use chatbots to handle simple customer service requests. But bots have a malicious side as well: Botnets. These are networks of computers infected with malware that allows fraudsters to use them for their dirty work. And botnet attacks are on the rise. In the U.S. ecommerce secto...

by Mercedes Cardona