System and method for detecting computer virus
First Claim
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1. A method of detecting computer viruses comprising the steps:
- receiving an electronic mail message including at least one encrypted attachment;
examining the electronic mail message to identify one or more potential encryption codes;
using the potential encryption codes to attempt to decrypt one or more of the encrypted attachments; and
if an encrypted attachment is decrypted, scanning the decrypted attachment for computer viruses.
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Abstract
A method is disclosed for detecting computer viruses. The method allows receipt of an electronic mail message that includes at least one encrypted attachment. The electronic mail message is examined in order to identify potential encryption codes. The encryption codes are used in order to attempt and decrypt the attachments. The attachments are expanded into one or more files. The files are then checked for the presence of computer viruses.
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Citations
23 Claims
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1. A method of detecting computer viruses comprising the steps:
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receiving an electronic mail message including at least one encrypted attachment;
examining the electronic mail message to identify one or more potential encryption codes;
using the potential encryption codes to attempt to decrypt one or more of the encrypted attachments; and
if an encrypted attachment is decrypted, scanning the decrypted attachment for computer viruses. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A computer program product, residing on a computer-readable medium, for use in detecting computer viruses, the computer program product comprising instructions for causing a processor to:
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examine an electronic mail message including one or more encrypted attachments to identify potential encryption codes;
use the potential encryption codes to attempt to decrypt one or more of the encrypted attachments; and
if an encrypted attachment is decrypted, scan the decrypted attachment for computer viruses. - View Dependent Claims (13, 14, 15)
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16. A system for detecting computer viruses, said system comprising a computer configured to:
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examine an electronic mail message including one or more encrypted attachments to identify potential encryption codes;
use the potential encryption codes to attempt to decrypt one or more of the encrypted attachments; and
if an encrypted attachment is decrypted, scan the decrypted attachment for computer viruses. - View Dependent Claims (17, 18, 19)
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20. A system for detecting computer viruses comprising:
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means for examining an electronic mail message including one or more encrypted attachments to identify potential encryption codes;
use the potential encryption codes to attempt to decrypt one or more of the encrypted attachments; and
means for scanning a decrypted attachment for computer viruses. - View Dependent Claims (21, 22, 23)
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Specification