Jobos Posted March 14, 2018 Posted March 14, 2018 So we are using 365 email and it is blocking .epub attachments sent by the LA. There is not much on Google about .epub files containing malware so thought I'd ask here. Are these attachments a risk or should I allow them? Detections found: Molly and the beanstalk EPUB - Unknown.epub jar
JackCPickup Posted March 14, 2018 Posted March 14, 2018 It's a standard e-book file and is only as prone as other file types to being malware.
Marci Posted March 14, 2018 Posted March 14, 2018 (edited) ePub is an archive - essentially a zip file with an xml manifest (same as docx / xlsx etc). The problem it's throwing is that the attached epub archive contains a JAR (java archive) within it, and that's why it's been blocked... unless it's an ePub on JAVA programming including bundled source samples as executable JAR modules, I'd be questioning it's authenticity. See https://www.ibm.com/developerworks/xml/tutorials/x-epubtut/index.html Edited March 14, 2018 by Marci 1
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