Detection rules › Elastic
Suspicious Java Execution via a Windows Script
Identifies when a Java archive is executed via a Windows Script. This may indicate an attempt to bypass application whitelisting by delivering malicious JAR file via a malicious Windows Jscript or Vbscript.
MITRE ATT&CK coverage
Rule body
[rule]
description = """
Identifies when a Java archive is executed via a Windows Script. This may indicate an attempt to bypass application
whitelisting by delivering malicious JAR file via a malicious Windows Jscript or Vbscript.
"""
id = "15b1d979-5be0-4e7f-9202-0c4cfd76b146"
license = "Elastic License v2"
name = "Suspicious Java Execution via a Windows Script"
os_list = ["windows"]
version = "1.0.30"
query = '''
process where event.action == "start" and
process.name : "Java*.exe" and process.executable : "?:\\Program Files*\\Java\\jre*\\bin\\java*.exe" and
process.args : "-jar" and process.parent.name : ("wscript.exe", "cscript.exe") and
process.command_line : ("*\\AppData\\*", "*\\Public\\*", "*\\ProgramData\\*")
'''
min_endpoint_version = "7.15.0"
[[actions]]
action = "kill_process"
field = "process.entity_id"
state = 0
[[optional_actions]]
action = "rollback"
field = "process.entity_id"
state = 0
[[threat]]
framework = "MITRE ATT&CK"
[[threat.technique]]
id = "T1059"
name = "Command and Scripting Interpreter"
reference = "https://attack.mitre.org/techniques/T1059/"
[[threat.technique.subtechnique]]
id = "T1059.005"
name = "Visual Basic"
reference = "https://attack.mitre.org/techniques/T1059/005/"
[[threat.technique.subtechnique]]
id = "T1059.007"
name = "JavaScript"
reference = "https://attack.mitre.org/techniques/T1059/007/"
[threat.tactic]
id = "TA0002"
name = "Execution"
reference = "https://attack.mitre.org/tactics/TA0002/"
[internal]
min_endpoint_version = "7.15.0"
Stages and Predicates
Stage 1: process
process where event.action == "start" and
process.name : "Java*.exe" and process.executable : "?:\\Program Files*\\Java\\jre*\\bin\\java*.exe" and
process.args : "-jar" and process.parent.name : ("wscript.exe", "cscript.exe") and
process.command_line : ("*\\AppData\\*", "*\\Public\\*", "*\\ProgramData\\*")
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
event.action | eq |
| field:"EventType" kind:eq value:"start" |
process.args | wildcard |
| field:"process.args" kind:wildcard value:"-jar" |
process.command_line | wildcard |
| field:"CommandLine" kind:wildcard |
process.executable | wildcard |
| field:"Image" kind:wildcard value:"?:\Program Files*\Java\jre*\bin\java*.exe" |
process.name | wildcard |
| field:"process_name" kind:wildcard value:"Java*.exe" |
process.parent.name | wildcard |
| field:"parent_process_name" kind:wildcard |