Threat actors are sending out a wave of phishing emails disguised as missed voicemail notifications in an attempt to bypass both email scanners and user suspicions.
The attack is sent in the form of an email purporting to be a notification about a voice message using subject lines such as “PBX Message,” “Voice:Message” or “Voice Delivery Report” along with an .EML attachment, according to a Jan. 24 Tripwrie blog post.
EdgeWave researchers who also examined the malicious campaign suggested that users may not be familiar with the notion that emails can be sent as an .EML attachment and then opened by email clients. As a result companies may not have taken the same measures to block malicious .EML attachments as they have for other types of malicious attachments.
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