[rule]
description = """
Identifies attempts to load a transacted file. This is a technique that exploits Transactional NTFS to execute arbitrary
code in the address space of a running process, without committing the code to disk.
"""
id = "eb40ab54-8642-488a-8e7b-ee00599079fc"
license = "Elastic License v2"
name = "Image Load via Transactional NTFS"
os_list = ["windows"]
version = "1.0.2"
query = '''
sequence with maxspan=1m
[file where event.action == "overwrite" and
_arraysearch(process.thread.Ext.call_stack, $entry, $entry.symbol_info: "*!CreateFileTransacted*")] by file.name
[library where event.action == "load" and process.pid != 4 and dll.Ext.defense_evasions : "Process Tampering*"] by dll.name
'''
min_endpoint_version = "8.10.0"
[[actions]]
action = "kill_process"
field = "process.entity_id"
state = 0
[[actions]]
action = "kill_process"
field = "process.entity_id"
state = 1
[[optional_actions]]
action = "rollback"
field = "process.entity_id"
state = 0
[[threat]]
framework = "MITRE ATT&CK"
[[threat.technique]]
id = "T1055"
name = "Process Injection"
reference = "https://attack.mitre.org/techniques/T1055/"
[threat.tactic]
id = "TA0005"
name = "Defense Evasion"
reference = "https://attack.mitre.org/tactics/TA0005/"
[internal]
min_endpoint_version = "8.10.0"