Information about the Posseidon Group targeted attack against different companies

During the latter part of 2015, Kaspersky researchers from GReAT (Global Research and Analysis Team) got hold of the missing pieces of an intricate puzzle that points to the dawn of the first Portuguesespeaking targeted attack group, named “Poseidon.” The group’s campaigns appear to have been active since at least 2005, while the very first sample found points to 2001. This signals just how long ago the Poseidon threat actor was already working on its offensive framework.