-- Ease of Removal
1: Uses running processes
2: Consistently named
3: Consistent file contents
4: Creates new registry entries with consistent data
-- Privacy Risks/Security Changes
1: Mimics legitimate file names
2: Modifies host files
-- Damage/Intrusion/Annoyance
1: Creates new files
2: Downloads other threats
3: Significantly slows down the computer
-- Propagation/Saturation
1: Installed by other infections
2: Infects from an email attachment
3: Infects from a link in an email
4: Spreads to other computers on the same network