Detection rules › Sigma
Persistence Via Hhctrl.ocx
Detects when an attacker modifies the registry value of the "hhctrl" to point to a custom binary
Known false positives
- Unlikely
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Persistence | No specific technique |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Sysmon | Event ID 13: RegistryEvent (Value Set) |
Rule body
title: Persistence Via Hhctrl.ocx
id: f10ed525-97fe-4fed-be7c-2feecca941b1
status: test
description: Detects when an attacker modifies the registry value of the "hhctrl" to point to a custom binary
references:
- https://persistence-info.github.io/Data/hhctrl.html
- https://www.hexacorn.com/blog/2018/04/23/beyond-good-ol-run-key-part-77/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-07-21
modified: 2023-08-17
tags:
- attack.persistence
logsource:
category: registry_set
product: windows
detection:
selection:
TargetObject|contains: '\CLSID\{52A2AAAE-085D-4187-97EA-8C30DB990436}\InprocServer32\(Default)'
filter:
Details: 'C:\Windows\System32\hhctrl.ocx'
condition: selection and not filter
falsepositives:
- Unlikely
level: high
Stages and Predicates
Stage 0: condition
selection and not filterStage 1: selection
selection:
TargetObject|contains: '\CLSID\{52A2AAAE-085D-4187-97EA-8C30DB990436}\InprocServer32\(Default)'
Stage 2: not filter
filter:
Details: 'C:\Windows\System32\hhctrl.ocx'
Exclusions
The rule actively suppresses these predicates.
| Field | Kind | Excluded values | Search |
|---|---|---|---|
Details | eq | C:\Windows\System32\hhctrl.ocx | excludes:Details field:"Details" value:"C:\Windows\System32\hhctrl.ocx" |
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
TargetObject | match |
| field:"TargetObject" kind:match value:"\CLSID\{52A2AAAE-085D-4187-97EA-8C30DB990436}\InprocServer32\(Default)" |