oilrig_1

Throughout an attack campaign, actors will continue to develop their tools in an attempt to remain undetected and to carry out multiple attacks without having to completely retool. In regard to the attack lifecycle, development of tools occurs in the weaponization/staging phase that precedes the delivery phase, of which is typically the first opportunity we see the actors’ activities as they interact directly with their target.

http://researchcenter.paloaltonetworks.com/2017/04/unit42-oilrig-actors-provide-glimpse-development-testing-efforts/