1. https://www.virusbtn.com/resources/glossary/wabbit.xml
2. https://www.virusbtn.com/resources/glossary/fork_bomb.xml
3. https://en.wikipedia.org/wiki/Fork_bomb
4. Mcafee labs threats report, May 2015.
http://www.mcafee.com/us/resources/reports/rp-quarterly-threat-q1-2015.pdf
5. Symantec: 2015 internet security threat report, vol. 20.
http://www.symantec.com/security_response/publications/threatreport.jsp