Selective detection of malicious computer code

Details Selective detection of malicious computer code Selective detection of malicious computer code

2007-09-30

2008-11-25

Truong, Thanhnga B (Department: 2135)

Information security

Monitoring or scanning of software or data including attack...

Intrusion detection

C726S022000, C726S023000, C726S025000, C713S188000, C713S194000, C709S223000, C709S224000

Reexamination Certificate

active

07458099

ABSTRACT:
Systems, methods, and computer readable media for determining whether a computer file (340) has been infected by an attacking agent. A scanning engine (205) generates a new hash of a critical viral target region of the file (340) and compares it to a stored hash of the critical viral target region. The scanning engine (205) determines whether the file (340) has been scanned by the most recent version of a detection module (425) associated with the attacking agent. If the hashes are identical and the file (340) has been scanned by the most recent version of the detection module (425), the scanning engine (205) determines that the file (340) is free of infection by the attacking agent.

REFERENCES:
patent: 5994821 (1999-11-01), Imada et al.
patent: 6842861 (2005-01-01), Cox et al.
patent: 6928555 (2005-08-01), Drew

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