Data Compressed
Description
An adversary may compress data (e.g., sensitive documents) that is collected prior to exfiltration in order to make it portable and minimize the amount of data sent over the network.
Query · sigma
selection1: type: execve a0: zip selection2: type: execve a0: gzip a1: -k selection3: type: execve a0: tar a1|contains: -c condition: 1 of selection*
Known false positives
- Legitimate use of archiving tools by legitimate user.