Trace Analysis Patterns (Part 68)

While preparing a presentation on malware narratives we found that one essential pattern is missing from the current log analysis pattern catalog. Most of the time we see some abnormal or unexpected value in a software trace or log such as a network address outside expected range and this triggers further investigation. The message structure may be the same having the same Message Invariant but variable part may contain such values as depicted graphically:

We call this pattern Abnormal Value and plan to add the similar one to memory dump analysis pattern catalog. Please not that we also have Significant Event pattern that is more general and also covers messages without variable part or just suspicious log entries.

- Dmitry Vostokov @ + -

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