rules/windows/process_creation/proc_creation_win_hh_chm.yml

title: HH.exe Execution
id: 68c8acb4-1b60-4890-8e82-3ddf7a6dba84
status: test
description: Identifies usage of hh.exe executing recently modified .chm files.
author: E.M. Anhaus (originally from Atomic Blue Detections, Dan Beavin), oscd.community
references:
  - https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1218.001/T1218.001.md
  - https://eqllib.readthedocs.io/en/latest/analytics/b25aa548-7937-11e9-8f5c-d46d6d62a49e.html
date: 2019/10/24
modified: 2021/11/27
logsource:
  category: process_creation
  product: windows
detection:
  selection:
    Image|endswith: '\hh.exe'
    CommandLine|contains: '.chm'
  condition: selection
fields:
  - ComputerName
  - User
  - CommandLine
falsepositives:
  - Unlikely
level: high
tags:
  - attack.defense_evasion
  - attack.t1218.001
Rule fixes 2020-02-20 23:00:16 +01:00			`title: HH.exe Execution`
UUIDs + moved unsupported logic 2019-12-19 23:56:36 +01:00			`id: 68c8acb4-1b60-4890-8e82-3ddf7a6dba84`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`status: test`
Added Atomic Blue Detections Repo 2019-10-28 11:59:49 +01:00			`description: Identifies usage of hh.exe executing recently modified .chm files.`
fixed various spelling errors all over rules and source code 2021-02-24 14:43:13 +00:00			`author: E.M. Anhaus (originally from Atomic Blue Detections, Dan Beavin), oscd.community`
Update win_hh_chm.yml 2019-11-11 03:04:54 +03:00			`references:`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1218.001/T1218.001.md`
			`- https://eqllib.readthedocs.io/en/latest/analytics/b25aa548-7937-11e9-8f5c-d46d6d62a49e.html`
Added Atomic Blue Detections Repo 2019-10-28 11:59:49 +01:00			`date: 2019/10/24`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`modified: 2021/11/27`
OSCD QA wave 3 2020-01-19 22:34:16 +01:00			`logsource:`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`category: process_creation`
			`product: windows`
Added Atomic Blue Detections Repo 2019-10-28 11:59:49 +01:00			`detection:`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`selection:`
			`Image\|endswith: '\hh.exe'`
			`CommandLine\|contains: '.chm'`
			`condition: selection`
OSCD QA wave 1 2020-01-11 00:11:27 +01:00			`fields:`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`- ComputerName`
			`- User`
			`- CommandLine`
Added Atomic Blue Detections Repo 2019-10-28 11:59:49 +01:00			`falsepositives:`
fix: more falsepositives harmonization 2022-03-16 14:39:23 +01:00			`- Unlikely`
Added Atomic Blue Detections Repo 2019-10-28 11:59:49 +01:00			`level: high`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`tags:`
			`- attack.defense_evasion`
$frack113$ remove invalid tag 2022-01-19 18:23:30 +01:00			`- attack.t1218.001`