Uncommon jsp file write by a Java process

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	1 Day
Required Data	XDR Agent with eXtended Threat Hunting (XTH)
ATT&CK Tactic	Persistence (TA0003)
ATT&CK Technique	Server Software Component: Web Shell (T1505.003)
Severity	Medium

Description

An uncommon jsp file was written by a Java process.

Attacker's Goals

Persistence on the host.

Investigative actions

• Check if the file was added during regular java process actions.
• Check if the jsp file contains malicious content.