Samsung on Thursday said it will manufacture premium Galaxy S23 smartphones in India to cater to the local market requirements. The launch price of the Galaxy S23 series in India is in the range of Rs. 75,000 to Rs. 1.55 lakh per piece. At present, Galaxy S Series smartphones are being manufactured at Samsung's Vietnam factory and the company imports them for sale in ...
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The use of Microsoft OneNote documents to distribute malware to unsuspecting users is picking up pace, cybersecurity researchers from Proofpoint have claimed.
OneNote is Microsoft’s digital note-taking app, which comes as part of the Office productivity suite. As such, cybercriminals can assume that most of their victims already have the app installed on their endpoints.
OneNote’s files, called NoteBooks, allow users to add attachments, which can download malware from remote locations. All users need to do is double-click the file, which they can be easily tricked into doing. Recent reports saw hackers distribute blurred NoteBooks with the message “double-click to view the contents”, tricking victims into believing the file’s contents are being protected.
Low detection rates
In a detailed report published on the company blog earlier this week, Proofpoint’s researchers said they identified six campaigns in December 2022, using OneNote to deliver the AsyncRAT malware.
A month later, in January 2023, they discovered more than 50 campaigns. Besides AsyncRAT, the crooks were delivering Redline Stealer, AgentTesla, and DOUBLEBACK. More recently, the threat actor known as TA577 used it to deliver Qbot.
Proofpoint’s researchers believe hackers turning to OneNote is in fact the result of extensive research. After experimenting with different attachment types, they settled on OneNote as so far, the detection rates are minimal.
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At press time, Proofpoint says that “multiple” malware samples were not getting detected by antivirus vendors on VirusTotal.
The best way to protect against these attacks is the same as it always was - educate your employees not to download attachments and click on email links from people they don’t know, don’t trust, or whose identity cannot be confirmed. Also, they should be educated not to ignore warning messages prompted in programs such as Word, Excel, or OneNote. Other than that, having a strong antivirus solution, and a firewall, is welcome.
Finally, activating multi-factor authentication (MFA) wherever possible greatly reduces the chances of more serious compromise.
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