Explanation: Cisco Tetration platform studies the behavior of the various processes and applications in the workload, measuring them against known bad behavior sequences. It also factors in the process hashes it collects. By studying various sets of malwares, the Tetration Analytics engineering team deconstructed it back into its basic building blocks. Therefore, the platform understands clear and crisp definitions of these building blocks and watches for them. The various suspicious patterns for which the Cisco Tetration platform looks in the current release are: + Shell code execution: Looks for the patterns used by shell code. + Privilege escalation: Watches for privilege changes from a lower privilege to a higher privilege in the process lineage tree. + Side channel attacks: Cisco Tetration platform watches for cache-timing attacks and page table fault bursts. Using these, it can detect Meltdown, Spectre, and other cache-timing attacks. + Raw socket creation: Creation of a raw socket by a nonstandard process (for example, ping). + User login suspicious behavior: Cisco Tetration platform watches user login failures and user login methods. + Interesting file access: Cisco Tetration platform can be armed to look at sensitive files. + File access from a different user: Cisco Tetration platform learns the normal behavior of which file is accessed by which user. + Unseen command: Cisco Tetration platform learns the behavior and set of commands as well as the lineage of each command over time. Any new command or command with a different lineage triggers the interest of the Tetration Analytics platform. Reference: https://www.cisco.com/c/en/us/products/collateral/data-center-analytics/tetration-analytics/whitepaper-c11-740380.html Cisco Tetration platform studies the behavior of the various processes and applications in the workload, measuring them against known bad behavior sequences. It also factors in the process hashes it collects. By studying various sets of malwares, the Tetration Analytics engineering team deconstructed it back into its basic building blocks. Therefore, the platform understands clear and crisp definitions of these building blocks and watches for them.
The various suspicious patterns for which the Cisco Tetration platform looks in the current release are:
+ Shell code execution: Looks for the patterns used by shell code.
+ Privilege escalation: Watches for privilege changes from a lower privilege to a higher privilege in the process lineage tree.
+ Side channel attacks: Cisco Tetration platform watches for cache-timing attacks and page table fault bursts.
Using these, it can detect Meltdown, Spectre, and other cache-timing attacks.
+ Raw socket creation: Creation of a raw socket by a nonstandard process (for example, ping).
+ User login suspicious behavior: Cisco Tetration platform watches user login failures and user login methods.
+ Interesting file access: Cisco Tetration platform can be armed to look at sensitive files.
+ File access from a different user: Cisco Tetration platform learns the normal behavior of which file is accessed by which user.
+ Unseen command: Cisco Tetration platform learns the behavior and set of commands as well as the lineage of each command over time. Any new command or command with a different lineage triggers the interest of the Tetration Analytics platform.
Explanation: Cisco Tetration platform studies the behavior of the various processes and applications in the workload, measuring them against known bad behavior sequences. It also factors in the process hashes it collects. By studying various sets of malwares, the Tetration Analytics engineering team deconstructed it back into its basic building blocks. Therefore, the platform understands clear and crisp definitions of these building blocks and watches for them. The various suspicious patterns for which the Cisco Tetration platform looks in the current release are: + Shell code execution: Looks for the patterns used by shell code. + Privilege escalation: Watches for privilege changes from a lower privilege to a higher privilege in the process lineage tree. + Side channel attacks: Cisco Tetration platform watches for cache-timing attacks and page table fault bursts. Using these, it can detect Meltdown, Spectre, and other cache-timing attacks. + Raw socket creation: Creation of a raw socket by a nonstandard process (for example, ping). + User login suspicious behavior: Cisco Tetration platform watches user login failures and user login methods. + Interesting file access: Cisco Tetration platform can be armed to look at sensitive files. + File access from a different user: Cisco Tetration platform learns the normal behavior of which file is accessed by which user. + Unseen command: Cisco Tetration platform learns the behavior and set of commands as well as the lineage of each command over time. Any new command or command with a different lineage triggers the interest of the Tetration Analytics platform. Reference: https://www.cisco.com/c/en/us/products/collateral/data-center-analytics/tetration-analytics/whitepaper-c11-740380.html

The ASA and ASASM implementations of NetFlow Secure Event Logging (NSEL) provide the following major functions:
...
- Delays the export of flow-create events.
The ASA and ASASM implementations of NetFlow Secure Event Logging (NSEL) provide the following major functions:
...
- Delays the export of flow-create events.
The ASA and ASASM implementations of NetFlow Secure Event Logging (NSEL) provide the following major functions:
...
- Delays the export of flow-create events.

The TLS connections are recorded in the mail logs, along with other significant actions that are related to messages, such as filter actions, anti-virus and anti-spam verdicts, and delivery attempts. If there is a successful TLS connection, there will be a TLS success entry in the mail logs. Likewise, a failed TLS connection produces a TLS failed entry. If a message does not have an associated TLS entry in the log file, that message was not delivered over a TLS connection. Reference: https://www.cisco.com/c/en/us/support/docs/security/email-security-appliance/118844-technoteesa-00.html The exhibit in this Qshows a successful TLS connection from the remote host (reception) in the mail log.
messages, such as filter actions, anti-virus and anti-spam verdicts, and delivery attempts. If there is a successful TLS connection, there will be a TLS success entry in the mail logs. Likewise, a failed TLS connection produces a TLS failed entry. If a message does not have an associated TLS entry in the log file, that message was not delivered over a TLS connection.
Reference:
The TLS connections are recorded in the mail logs, along with other significant actions that are related to messages, such as filter actions, anti-virus and anti-spam verdicts, and delivery attempts. If there is a successful TLS connection, there will be a TLS success entry in the mail logs. Likewise, a failed TLS connection produces a TLS failed entry. If a message does not have an associated TLS entry in the log file, that message was not delivered over a TLS connection. Reference: https://www.cisco.com/c/en/us/support/docs/security/email-security-appliance/118844-technoteesa-00.html The exhibit in this Qshows a successful TLS connection from the remote host (reception) in the mail log.