Cisco Cisco IOS Software Release 12.4(15)T
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Automatic Signature Extraction
First Published: July 19, 2007
The Automatic Signature Extraction (ASE) feature helps shorten the response time for identifying
malware by dynamically extracting signatures of unknown viruses and worms traversing the network
without the need for human intervention.
malware by dynamically extracting signatures of unknown viruses and worms traversing the network
without the need for human intervention.
Before Cisco IOS Release 12.4(15)T, network protection from malware such as botnets, viruses, and
worms was accomplished by deploying solutions that rely on manual signatures to identify the malware.
Normally, security professionals require approximately 8 to 12 hours to generate a signature for a new
piece of malware. This time interval had been acceptable for thwarting malware, but is no longer
acceptable nor scalable due to the exponential increase in malware that is seen on networks.
worms was accomplished by deploying solutions that rely on manual signatures to identify the malware.
Normally, security professionals require approximately 8 to 12 hours to generate a signature for a new
piece of malware. This time interval had been acceptable for thwarting malware, but is no longer
acceptable nor scalable due to the exponential increase in malware that is seen on networks.
Finding Feature Information in This Module
Your Cisco IOS software release may not support all of the features documented in this module. To reach
links to specific feature documentation in this module and to see a list of the releases in which each feature is
supported, use the
links to specific feature documentation in this module and to see a list of the releases in which each feature is
supported, use the
Finding Support Information for Platforms and Cisco IOS and Catalyst OS Software Images
Use Cisco Feature Navigator to find information about platform support and Cisco IOS and Catalyst OS
software image support. To access Cisco Feature Navigator, go to
software image support. To access Cisco Feature Navigator, go to
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