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2. Peter Szor and Peter Ferrie , "Hunting for Metamorphic," Virus Bulletin Conference, September 2001, pp. 123-144.
3. Tim Waits , "Virus Construction Kits," Virus Bulletin Conference, 1993, pp. 111-118.
4. Fridrik Skulason , "Virus Encryption Techniques," Virus Bulletin, November 1990, pp. 13-16.
5. Peter Szor , "F-HARE," Documentation by Sarah Gordon, 1996.
6. Eugene Kaspersky , "Picturing Harrier," Virus Bulletin, September 1999, pp. 8-9.
7. Peter Szor, Peter Ferrie, and Frederic Perriot , "Striking Similarities," Virus Bulletin, May 2002, pp. 4-6.
8. X. Lai, J. L. Massey , "A Proposal for New Block Encryption Standard," Advances in Cryptology Eurocrypt''''''''''''''''90, 1991.
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10. Peter Szor , "Tricky Relocations," Virus Bulletin, April 2001, page 8.
11. Dmitry Gryaznov , "Analyzing the Cheeba Virus," EICAR Conference, 1992, pp. 124-136.
12. Dr. Vesselin Bontchev , "Cryptographic and Cryptanalytic Methods Used in Computer Viruses and Anti-Virus Software," RSA Conference, 2004.
13. James Riordan and Bruce Schneider , "Environmental Key Generation Towards Clueless Agents," Mobile Agents and Security, Springer-Verlag, 1998, pp. 15-24.
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15. Peter Szor , "The Road to MtE: Polymorphic Viruses," Chip, June 1993, pp. 57-59.
16. Fridrik Skulason , "1260The Variable Virus," Virus Bulletin, March 1990, page 12.
17. Vesselin Bontchev , "MtE Detection Test," Virus News International, January 1993, pp. 26-34.
18. Peter Szor , "The Marburg Situation," Virus Bulletin, November 1998, pp. 8-10.
19. Dr. Igor Muttik , "Silicon Implants," Virus Bulletin, May 1997, pp. 8-10.
20. Vesselin Bontchev and Katrin Tocheva , "Macro and Script Virus Polymorphism," Virus Bulletin Conference, 2002, pp. 406-438.
21. "Shape Shifters," Scientific American, May 2001, pp. 20-21.
22. Peter Szor and Peter Ferrie , "Zmist Opportunities," Virus Bulletin, March 2001, pp. 6-7.
23. Peter Ferrie , personal communication, 2004.