Pre-Grant Publication Number: 20090158432
Filing Date: December 12, 2007
Inventors: Yufeng Zheng, Xiaoxin Chen, Bich Cau Le, Jagannath Gopal Krishnan, Derek Uluski
Assignee(s): VMWARE, Inc.
Current U.S. Classification: 726, 726/024000
View Prior Art for Claim 00032
The tangible medium of Claim 31, wherein the scan history includes a signature for each file that the scan engine determines to be free of malicious codewherein the scan engine, upon receiving from the driver portion the information identifying the location of the data to be scanned, compares a new signature generated from the data to be scanned and compares the new signature with signatures in the scan history, the scan engine performing the scan only when the signatures in the scan history does not include a matching signature. 
