Not just an infostealer: Gopuram backdoor deployed through 3CX supply chain attack

A DLL named guard64.dll, which was loaded into the infected 3CXDesktopApp.exe process, was used in recent deployments of a backdoor that we dubbed “Gopuram” and had been tracking internally since 2020. Continue reading Not just an infostealer: Gopuram backdoor deployed through 3CX supply chain attack