one file extension indicating a OneNote file. Phishing email impersonating Canadian company Ultramar.Īs can be seen in Figure A, the email contains text in both English and French language, but most importantly an attached file named Invoice_32566.one - the. In that attack campaign, cybercriminals impersonated Ultramar, a Canadian gas and home fuel retailer, sending phishing emails supposedly coming from the company ( Figure A).įigure A Image: Bitdefender. SEE: Mobile device security policy (TechRepublic Premium) Phishing attacks deliver AsyncRAT malwareĪ new Bitdefender study exposes a phishing campaign abusing OneNote to infect computers with malware. Some other cybercriminals have found a different way to keep abusing Microsoft products for infecting computers with malware: infected OneNote documents. Some cybercriminals have already found a workaround to keep using some Microsoft Office products, like abusing the XLL files from Excel. Image: Sashkin/Adobe StockĪs Microsoft decided to change the default of its Office products to block macros on files downloaded from the internet, cybercriminals saw one of their favorite infection methods vanish. Once you’ve verified your account, try sharing the notebook again.OneNote documents spread malware in several countriesĪ new phishing campaign abuses OneNote documents to infect computers with the infamous AsyncRAT malware, targeting users in the U.K., U.S.Enter your mobile number, click Send code and enter it to verify your account.If you see this message, click verify your account info.To get unblocked, please verify your account info‘. You may receive a message that states ‘ Sharing from this account has been temporarily blocked. Enter an email address of someone that you want to share the notebook with and click Share.Click File, then Share, then Share with People.

Enter your username and password, sign in and open the Notebook you are trying to Share.Since this issue will likely only affect Microsoft Accounts, Click Sign in with a Microsoft Account.

To confirm whether this is the cause of the issue for you, we need to open the OneNote notebook using OneNote Online. To resolve this, you may need to verify your Microsoft account. You might need to verify your Microsoft Account. It may look like it’s trying to share your notebook, only to go back to only having one person with access to the document. You may have an issue with OneNote not allowing you to share Notebooks from the desktop version.

Share onenote document