Detection: Anomalous usage of Archive Tools
Description
The following detection identifies the usage of archive tools from the command line.
Annotations
No annotations available.
Implementation
To successfully implement this search you need to be ingesting information on process that include the name of the process responsible for the changes from your endpoints into the Endpoint datamodel in the Processes node.
Known False Positives
False positives can be ligitmate usage of archive tools from the command line.
Associated Analytic Story
Risk Based Analytics (RBA)
| Risk Message | Risk Score | Impact | Confidence |
|---|---|---|---|
| An instance of $actor_process_file_name$ spawning $process_file_name$ was identified on endpoint $device_hostname$ by user $actor_user_name$. This behavior is indicative of suspicious loading of 7zip. | 42 | 70 | 60 |
The Risk Score is calculated by the following formula: Risk Score = (Impact * Confidence/100). Initial Confidence and Impact is set by the analytic author.
References
Version: 4