The source code for the smallest but sophisticated banking Trojan has been leaked through an online post in an underground forum, which make it available for anyone who knows where to look for free malware generation tools. The files posted on the closed russian underground forum turned out to be the source code of Tinba version1, which was discovered around mid-2012 and they say it is the original, privately sold version of the crimeware kit that infected thousands of computers in Turkey. Researchers believe that the code of the malware was likely sold, modified and improved by other attackers.
Source: https://thehackernews.com/2014/07/tinba-banking-malware-source-code.html