In one intrusion, the first second-stage custom loader (TEARDROP) was introduced to the environment by BusinessLayerHost.exe at around 10:00 AM UTC. 7z.dll), Far Manager (e.g. The Variant 2 custom loaders were mostly compiled from open-source source code of legitimate applications, such as 7-Zip and Far Manager (i.e. the open-source source code for these applications was modified to add in the malicious code). In some instances, certain development artifacts were left behind in the custom loader samples. For example, the following C++ header (.hpp) path was observed in a loader compiled from a modified Far Manager open-source source code (c:\build\workspace\cobalt_cryptor_far (dev071)\farmanager\far\platform.concurrency.hpp