Analytics BIOC
Low
✕
Possible webshell file written by a web server process
An uncommon file with a web file extension was created, written or renamed by a web server process.
- Module:
- Platform Analytics
- Data source:
- XDR Agent with eXtended Threat Hunting (XTH)
ATT&CK tactics: Initial Access (TA0001) Persistence (TA0003)
ATT&CK techniques: External Remote Services (T1133) Server Software Component: Web Shell (T1505.003)
Detector tags: Webshell Analytics
Attacker's goals:
Gaining the ability to execute commands on the host, as well as persistence.
Investigative actions:
Investigate the web server access logs for suspicious behavior. Check if the dropped file contains malicious content.
- Test period:
- N/A (single event)
- Deduplication:
- 1 Day
3 variations:
- Possible webshell file written by a node web server process Informational (parent: Low)
- Possible webshell file written by a web server process in an internet facing server Low
- Possible webshell file written by a web server process with connections from various sources and high web traffic Low