Researchers captured over 500 MS Excel files that were involved in a campaign to deliver a fresh Emotet Trojan onto the victim’s device. Emotet, a modular Trojan, was first discovered in the middle of 2014. Since then, it has been continually updated. Emotet uses social engineering Emotet uses social engineering techniques to lure recipients into opening attached document files like Word, Excel, PDF, etc. Or it could be clicking links within the content of the email that download Emotet’s latest variant onto the victim’s device and then execute it.