Valyria malware is a trojan distributed by phishing email attacks seemingly targeting business emails, commonly using the words “Invoice,” “Order,” or “Report” in the subject line.
Among these emails, there is a strong resurgence of tactics, techniques, and procedures (TTP’s) previously known to be employed by the Gorgon Group with the MasterMana Botnet.
Link to full technical report: TIR-21-224-001_Val.pdf