Added detection testing service results inUnsigned Image Loaded by LSASS

This commit is contained in:
root
2020-09-07 08:52:45 +00:00
parent ce708abe4e
commit a71bedb45a
+13 -12
View File
@@ -1,6 +1,4 @@
name: Unsigned Image Loaded by LSASS
id: 56ef054c-76ef-45f9-af4a-a634695dcd65
version: 1
author: Patrick Bareiss, Splunk
date: '2019-12-06'
description: This search detects loading of unsigned images by LSASS.
how_to_implement: This search needs Sysmon Logs with a sysmon configuration, which
@@ -9,27 +7,30 @@ how_to_implement: This search needs Sysmon Logs with a sysmon configuration, whi
(index, source, sourcetype, etc.) for Windows Sysmon logs. Replace the macro definition
with configurations for your Splunk environment. The search also uses a post-filter
macro designed to filter out known false positives.
type: ESCU
id: 56ef054c-76ef-45f9-af4a-a634695dcd65
known_false_positives: Other tools could load images into LSASS for legitimate reason.
But enterprise tools should always use signed DLLs.
name: Unsigned Image Loaded by LSASS
references:
- https://2017.zeronights.org/wp-content/uploads/materials/ZN17_Kheirkhabarov_Hunting_for_Credentials_Dumping_in_Windows_Environment.pdf
author: Patrick Bareiss, Splunk
search: '`sysmon` EventID=7 Image=*lsass.exe Signed=false | stats count min(_time)
as firstTime max(_time) as lastTime by Computer, Image, ImageLoaded, Signed, SHA1
| rename Computer as dest | `security_content_ctime(firstTime)`| `security_content_ctime(lastTime)`
| `unsigned_image_loaded_by_lsass_filter` '
known_false_positives: Other tools could load images into LSASS for legitimate reason.
But enterprise tools should always use signed DLLs.
tags:
analytics_story:
- Credential Dumping
mitre_attack_id:
- T1003.001
kill_chain_phases:
- Actions on Objectives
asset_type: Windows
automated_detection_testing: passed
cis20:
- CIS 8
- CIS 16
kill_chain_phases:
- Actions on Objectives
mitre_attack_id:
- T1003.001
nist:
- DE.CM
security_domain: endpoint
asset_type: Windows
type: ESCU
version: 1