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Trace and Log Analysis: A Pattern Reference for Diagnostics and Anomaly Detection by Software Diagnostics Institute, Dmitry Vostokov

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Script Messages

Messages that contain scripting statements can be signs of malnarratives112 that resulted from log injection during attempts to exploit possible cross-channel scripting113 (XCS) and cross-site scripting114 (XSS) vulnerabilities. Such Script Messages may be spread across a log, as illustrated in the following diagram:

 

Sequence Repeat Anomaly

Sometimes we have Periodic Message Blocks of a few adjacent messages, for example, when flags are translated into separate messages per bit. Then we may have a pattern of Sequence Repeat Anomaly when one of several message blocks have missing or added messages compared to more numerous expected ...

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