
Summary
This rule is designed to detect unauthorized screen capture activity on Linux servers using the Import Tool from ImageMagick. It focuses on the execution of the `import` command, which is commonly used to take screenshots. Given that utilities capable of taking screenshots are frequently utilized, especially in environments where users have high privileges, it is crucial to monitor this activity closely to prevent potential data exfiltration or other malicious actions. The rule triggers on specific parameters associated with the `import` command where the output file types are limited to common image formats (.png, .jpg, .jpeg). It is particularly recommended for servers where the risk of unauthorized screen captures is elevated compared to typical user workstations.
Categories
- Linux
- Endpoint
Data Sources
- Process
- File
- Logon Session
ATT&CK Techniques
- T1113
Created: 2021-09-21