removing extra detection

This commit is contained in:
josehelps
2022-10-18 14:56:03 -04:00
parent eae0adbb51
commit ae66d556e0
@@ -1,62 +0,0 @@
name: Windows Rename System Utilities Wmic exe LOLBAS in Non Standard Path
id: 42c9b37c-6928-4e54-8043-2d5265d972dd
version: 1
description: The following analytic identifies Wmic.exe which is a native living off
the land binary or script (LOLBAS) within the Windows operating system that may
be abused by adversaries by moving it to a new directory. The list of binaries was
derived from the https://lolbas-project.github.io site.
search: ssa_input = | from read_ssa_enriched_events() | eval device=ucast(map_get(input_event,
"dest_device_id"), "string", null), user=ucast(map_get(input_event, "dest_user_id"),
"string", null), timestamp=parse_long(ucast(map_get(input_event, "_time"), "string",
null)), process_name=lower(ucast(map_get(input_event, "process_name"), "string",
null)), process_path=lower(ucast(map_get(input_event, "process_path"), "string",
null)), event_id=ucast(map_get(input_event, "event_id"), "string", null)| where
process_name IS NOT NULL AND process_name="wmic.exe"| where process_path IS NOT
NULL AND match_regex(process_path, /(?i)\\windows\\syswow64\\wbem/)=false | eval
start_time=timestamp,end_time=timestamp, entities=mvappend(device, user), body=create_map(["event_id",
event_id, "process_path", process_path, "process_name", process_name]) | into write_ssa_detected_events();
how_to_implement: To successfully implement this search, you must be ingesting logs
with the process name, command-line arguments, and parent processes from your endpoints.
Collect endpoint data such as Sysmon or Windows Events 4688.
known_false_positives: False positives may be present and filtering may be required.
Certain utilities will run from non-standard paths based on the third-party application
in use.
references:
- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1036.003/T1036.003.yaml
- https://attack.mitre.org/techniques/T1036/003/
- https://lolbas-project.github.io/
tags:
analytic_story:
- Unusual Processes
- Living Off The Land
cis20:
- CIS 8
kill_chain_phases:
- Actions on Objectives
mitre_attack_id:
- T1036
- T1036.003
nist:
- PR.PT
- DE.CM
required_fields:
- dest_device_id
- process_name
- _time
- dest_user_id
- process_path
risk_score: 14
security_domain: endpoint
risk_severity: low
research_site_url: https://research.splunk.com/endpoint/42c9b37c-6928-4e54-8043-2d5265d972dd/
test:
name: Windows Rename System Utilities Wmic exe LOLBAS in Non Standard Path Unit
Test
tests:
- name: Windows Rename System Utilities Wmic exe LOLBAS in Non Standard Path
file: endpoint/ssa___wmic_exe.yml
pass_condition: '@count_eq(1)'
attack_data:
- file_name: dotnet_lolbin-windows-security.log
data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1036/system_process_running_unexpected_location/lolbas_dataset.log
source: WinEventLog:Security