Evasive QBot Malware Leverages Short-lived Residential IPs for Dynamic Attacks
Jun 01, 2023
Cyber Threat / Network Security
An analysis of the "evasive and tenacious" malware known as QBot has revealed that 25% of its command-and-control (C2) servers are merely active for a single day. What's more, 50% of the servers don't remain active for more than a week, indicating the use of an adaptable and dynamic C2 infrastructure , Lumen Black Lotus Labs said in a report shared with The Hacker News. "This botnet has adapted techniques to conceal its infrastructure in residential IP space and infected web servers, as opposed to hiding in a network of hosted virtual private servers (VPSs)," security researchers Chris Formosa and Steve Rudd said. QBot , also called QakBot and Pinkslipbot, is a persistent and potent threat that started off as a banking trojan before evolving into a downloader for other payloads, including ransomware. Its origins go back as far as 2007. The malware arrives on victims' devices via spear-phishing emails, which either directly incorporate lure files o...