Detection rules › Elastic
JAVA Application Execution from Suspicious Paths
Identifies the execution of a Java JAR application from suspicious file paths such as downloads and compression utilities extraction paths.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Execution |
Rule body
[rule]
description = """
Identifies the execution of a Java JAR application from suspicious file paths such as downloads and compression
utilities extraction paths.
"""
id = "b5d02713-e392-47c4-b38b-10b68dbc00a6"
license = "Elastic License v2"
name = "JAVA Application Execution from Suspicious Paths"
os_list = ["windows"]
version = "1.0.5"
query = '''
sequence by process.entity_id with maxspan=5s
[process where event.action == "start" and
process.name : "javaw.exe" and process.args_count == 3 and process.args : "-jar" and
process.args :
("C:\\Users\\*\\Downloads\\*.jar",
"c:\\Users\\*\\Desktop\\*.jar",
"C:\\Users\\*\\AppData\\Local\\Temp\\7z*\\",
"C:\\Users\\*\\AppData\\Local\\Temp\\Rar$*\\*",
"C:\\Users\\*\\AppData\\Local\\Temp\\Temp?_*\\*",
"C:\\Users\\*\\AppData\\Local\\Temp\\BNZ.*")
]
[network where event.action in ("connection_accepted", "connection_attempted") and
not cidrmatch(destination.ip, "10.0.0.0/8", "127.0.0.0/8", "169.254.0.0/16", "172.16.0.0/12", "192.0.0.0/24",
"192.0.0.0/29", "192.0.0.8/32", "192.0.0.9/32", "192.0.0.10/32", "192.0.0.170/32", "192.0.0.171/32",
"192.0.2.0/24", "192.31.196.0/24", "192.52.193.0/24", "192.88.99.0/24", "224.0.0.0/4",
"100.64.0.0/10", "192.175.48.0/24","198.18.0.0/15", "198.51.100.0/24", "203.0.113.0/24", "240.0.0.0/4", "::1",
"FE80::/10", "FF00::/8", "129.153.192.0/19", "128.194.0.0/16") and
not (process.executable : "C:\\Program Files\\Amazon Corretto\\jdk*\\bin\\javaw.exe" and destination.ip == "164.154.131.141") and
not (process.executable : "C:\\Program Files\\Zulu\\zulu-??\\bin\\javaw.exe" and destination.ip == "146.75.93.145")]
'''
min_endpoint_version = "7.16.0"
[[actions]]
action = "kill_process"
field = "process.entity_id"
state = 0
[[optional_actions]]
action = "rollback"
field = "process.entity_id"
state = 0
[[threat]]
framework = "MITRE ATT&CK"
[[threat.technique]]
id = "T1059"
name = "Command and Scripting Interpreter"
reference = "https://attack.mitre.org/techniques/T1059/"
[threat.tactic]
id = "TA0002"
name = "Execution"
reference = "https://attack.mitre.org/tactics/TA0002/"
[internal]
min_endpoint_version = "7.16.0"
Stages and Predicates
Ordered sequence: each step below must occur in order within 5s, correlated by process.entity_id.
Stage 1: process
[process where event.action == "start" and
process.name : "javaw.exe" and process.args_count == 3 and process.args : "-jar" and
process.args :
("C:\\Users\\*\\Downloads\\*.jar",
"c:\\Users\\*\\Desktop\\*.jar",
"C:\\Users\\*\\AppData\\Local\\Temp\\7z*\\",
"C:\\Users\\*\\AppData\\Local\\Temp\\Rar$*\\*",
"C:\\Users\\*\\AppData\\Local\\Temp\\Temp?_*\\*",
"C:\\Users\\*\\AppData\\Local\\Temp\\BNZ.*")
]
Stage 2: network
[network where event.action in ("connection_accepted", "connection_attempted") and
not cidrmatch(destination.ip, "10.0.0.0/8", "127.0.0.0/8", "169.254.0.0/16", "172.16.0.0/12", "192.0.0.0/24",
"192.0.0.0/29", "192.0.0.8/32", "192.0.0.9/32", "192.0.0.10/32", "192.0.0.170/32", "192.0.0.171/32",
"192.0.2.0/24", "192.31.196.0/24", "192.52.193.0/24", "192.88.99.0/24", "224.0.0.0/4",
"100.64.0.0/10", "192.175.48.0/24","198.18.0.0/15", "198.51.100.0/24", "203.0.113.0/24", "240.0.0.0/4", "::1",
"FE80::/10", "FF00::/8", "129.153.192.0/19", "128.194.0.0/16") and
not (process.executable : "C:\\Program Files\\Amazon Corretto\\jdk*\\bin\\javaw.exe" and destination.ip == "164.154.131.141") and
not (process.executable : "C:\\Program Files\\Zulu\\zulu-??\\bin\\javaw.exe" and destination.ip == "146.75.93.145")]
Exclusions
The rule actively suppresses these predicates.
| Field | Kind | Excluded values | Search |
|---|---|---|---|
destination.ip | eq | 146.75.93.145 | excludes:destination.ip field:"destination.ip" value:"146.75.93.145" |
process.executable | eq | C:\Program Files\Zulu\zulu-??\bin\javaw.exe | excludes:process.executable field:"process.executable" value:"C:\Program Files\Zulu\zulu-??\bin\javaw.exe" |
destination.ip | eq | 164.154.131.141 | excludes:destination.ip field:"destination.ip" value:"164.154.131.141" |
process.executable | wildcard | C:\Program Files\Amazon Corretto\jdk*\bin\javaw.exe | excludes:process.executable field:"process.executable" value:"C:\Program Files\Amazon Corretto\jdk*\bin\javaw.exe" |
destination.ip | cidr_match | 10.0.0.0/8, 127.0.0.0/8, 169.254.0.0/16, 172.16.0.0/12, 192.0.0.0/24, 192.0.0.0/29, 192.0.0.8/32, 192.0.0.9/32, 192.0.0.10/32, 192.0.0.170/32, 192.0.0.171/32, 192.0.2.0/24, 192.31.196.0/24, 192.52.193.0/24, 192.88.99.0/24, 224.0.0.0/4, 100.64.0.0/10, 192.175.48.0/24, 198.18.0.0/15, 198.51.100.0/24, 203.0.113.0/24, 240.0.0.0/4, ::1, FE80::/10, FF00::/8, 129.153.192.0/19, 128.194.0.0/16 | excludes:destination.ip |
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
event.action | eq |
| field:"EventType" kind:eq value:"start" |
event.action | in |
| field:"EventType" kind:in |
process.args | wildcard |
| field:"process.args" kind:wildcard |
process.args_count | eq |
| field:"process.args_count" kind:eq value:"3" |
process.name | wildcard |
| field:"process_name" kind:wildcard value:"javaw.exe" |