Secure gateway for analyzing textual content to identify a harmful impact on computer systems with known vulnerabilities
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United States of America Patent
Stats
-
Jan 28, 2003
Grant Date -
N/A
app pub date -
Jun 29, 2001
filing date -
Jun 29, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system, method and computer program product are provided for detecting attacks on a network. Initially, data is received from a remote source which is destined for a target. A portion of such data is then discarded based on a predetermined set of rules utilizing a firewall which is coupled to the remote source. Remaining data is subsequently passed to an intrusion detection system coupled between the firewall and the target. Such data is parsed to identify data representing text (i.e. ASCII or UNICODE text) therein utilizing the intrusion detection system. Thereafter, the data representing text- is compared to a predetermined list of data representing text-associated with attacks utilizing the intrusion detection system. Based on the comparison, some of the data representing text are marked as hostile. The data representing text-that are marked as hostile are then acted upon in order to prevent an attack.
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