The source code for the infamous crime kit ZeuS (Wsnpoem/Zbot) is being sold on at least two dark market forums. It is already considered as being amongst the most pervasive banking Trojan in the global threat landscape. With the release and leakage of the source code it could easily become even more widespread and an even bigger threat than it already is today. We compiled it in our lab and it works like a charm. It is an advanced crime kit and very configurable. When unzipped it looks like this:
Source: https://thehackernews.com/2011/05/complete-zeus-source-code-has-been.html