The White House e-card scam included a piece of Zeus-related malware that searches hard drives for documents and uploads them to a remote server. The malware is nearly identical to a similar attack from early 2010 that exposed a nascent botnet. Officials in the U.S. and elsewhere fell for the scam and ended up exposing gigabytes of government documents. An analysis of the malware found that the two files are nearly identical in size and bear a number of other similarities, as well.
Source: https://thehackernews.com/2011/01/white-house-e-card-scam-part-of-larger.html