×

Dynamic replacement of system call tables

  • US 7,685,638 B1
  • Filed: 12/13/2005
  • Issued: 03/23/2010
  • Est. Priority Date: 12/13/2005
  • Status: Active Grant
First Claim
Patent Images

1. A method for dynamically replacing a system call table for applications targeted for security checking, comprising:

  • identifying a target process executing on a processor including threads associated with a global service descriptor table (SDT);

    allocating an alternate SDT for the target process;

    installing one or more security hook routines in the alternate SDT;

    changing the threads included in the target process from being associated with the global SDT to being associated with the alternate SDT, wherein threads of a plurality of other processes remain associated with the global SDT; and

    responsive to a thread of the target process creating a new thread, associating the new thread with the alternate SDT.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×