Abstract: A security system provides a defense from known and unknown viruses, worms, spyware, hackers, and unwanted software. The system can implement centralized policies that allow an administrator to approve, block, quarantine, and log file activities. The system can extract content of interest from a file container, repackage the content of interest as another valid file type, perform hashes on the content of interest, associate the hash of the container with the hash of the repackaged content, transfer the repackaged content, and store the hash with other security-related information.

Abstract: A security system provides a defense from known and unknown viruses, worms, spyware, hackers, and social engineering attacks. The system can implement centralized policies that allow an administrator to approve, block, quarantine, or log file activities. The system stores meta-information for files relating to security and at defined times after a file or a file hash is first received, performs security related analyses from a central server. Analysis results are stored on the server, and the server can automatically change file meta-information. Changes in file meta-information are provided to hosts.

Abstract: A security system provides a defense from known and unknown viruses, worms, spyware, hackers, and social engineering attacks. The system can implement centralized policies that allow an administrator to approve, block, quarantine, or log file activities. The system can provide and update a security value that causes host computers to change security levels for a number of different policies. The policies are grouped into a master set of policies and options which are propagated to the hosts from a centralized server. The security value is stored on the hosts and the server, and changes of the value on the server are propagated to the hosts.

Abstract: A security system provides a defense from known and unknown viruses, worms, spyware, hackers, and unwanted or unknown software. The system can implement centralized policies that allow an administrator to approve, block, quarantine, or log file activities. The system maintains file meta-information in the hosts and in the server. A host detects file operations which can cause changes to file content or file name, and updates the host and/or server meta-information as a result. Changes in server meta-information are made available to hosts.

Abstract: A security system provides a defense from known and unknown viruses, worms, spyware, hackers, and social engineering attacks. The system can implement centralized policies that allow an administrator to approve, block, quarantine, or log file activities. The system stores meta-information for files relating to security and at defined times after a file or a file hash is first received, performs security related analyses from a central server. Analysis results are stored on the server, and the server can automatically change file meta-information. Changes in file meta-information are provided to hosts.

Abstract: A security system provides a defense from known and unknown viruses, worms, spyware, hackers, and social engineering attacks. The system can implement centralized policies that allow an administrator to approve, block, quarantine, or log file activities. The system can provide and update a security value that causes host computers to change security levels for a number of different policies. The policies are grouped into a master set of policies and options which are propagated to the hosts from a centralized server. The security value is stored on the hosts and the server, and changes of the value on the server are propagated to the hosts.

Abstract: A security system provides a defense from known and unknown viruses, worms, spyware, hackers, and unwanted or unknown software. The system can implement centralized policies that allow an administrator to approve, block, quarantine, or log file activities. The system maintains file meta-information in the hosts and in the server. A host detects file operations which can cause changes to file content or file name, and updates the host and/or server meta-information as a result. Changes in server meta-information are made available to hosts.

Abstract: A security system provides a defense from known and unknown viruses, worms, spyware, hackers, and social engineering attacks. The system can implement centralized policies that allow an administrator to approve, block, quarantine, and log file activities. A server associated with a number of hosts can provide a query for host computers to access security-related meta-information in local host stores. The query is pulled from the server by the hosts. The results of the distributed host query are stored and merged on the server, and exported for display, reports, or security response.

Abstract: A security system provides a defense from known and unknown viruses, worms, spyware, hackers, and unwanted software. The system can implement centralized policies that allow an administrator to approve, block, quarantine, and log file activities. The system can extract content of interest from a file container, repackage the content of interest as another valid file type, perform hashes on the content of interest, associate the hash of the container with the hash of the repackaged content, transfer the repackaged content, and store the hash with other security-related information.