“Around March of 2011 files of the format below began appearing on Pastebin.com and Pastebin.ca. An investigation into their contents revealed them to be a simple keylog dump of window titles and content typed into the window below the title. Pastebin had been turned into the dead drop for the exfiltraiton of user data from a malware infection.”
Source: Pastebin and Cyber-Shark — The Hacker Dumping Ground | FusionX, LLC