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Detection of a class of viral code

  • US 7,069,589 B2
  • Filed: 07/14/2001
  • Issued: 06/27/2006
  • Est. Priority Date: 07/14/2000
  • Status: Active Grant
First Claim
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1. A method of detecting a class of viral code, comprising:

  • heuristically analyzing a subject file to detect at least one class of viral code, the heuristic analysis based at least in part on one or more rules;

    identifying at least one new characteristic of a viral code;

    generating at least one new rule, the at least one new rule based at least in part on the at least one new characteristic;

    generating a set of flags based at least in part on the heuristic analysis;

    using the set of flags to perform at least one search for a scan string and/or a statement type in the subject file; and

    triggering a positive detection alarm if each of the at least one search is found at least a corresponding predetermined number of times.

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