Detection rules › Sigma
Suspicious Creation with Colorcpl
Once executed, colorcpl.exe will copy the arbitrary file to c:\windows\system32\spool\drivers\color\
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Stealth |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Sysmon | Event ID 11: FileCreate |
Rule body
title: Suspicious Creation with Colorcpl
id: e15b518d-b4ce-4410-a9cd-501f23ce4a18
status: test
description: Once executed, colorcpl.exe will copy the arbitrary file to c:\windows\system32\spool\drivers\color\
references:
- https://twitter.com/eral4m/status/1480468728324231172?s=20
author: frack113
date: 2022-01-21
modified: 2023-01-05
tags:
- attack.stealth
- attack.t1564
logsource:
product: windows
category: file_event
detection:
selection:
Image|endswith: '\colorcpl.exe'
filter_ext:
TargetFilename|endswith:
- '.icm'
- '.gmmp'
- '.cdmp'
- '.camp'
condition: selection and not 1 of filter_*
falsepositives:
- Unknown
level: high
Stages and Predicates
Stage 0: condition
selection and not 1 of filter_*Stage 1: selection
selection:
Image|endswith: '\colorcpl.exe'
Stage 2: not filter_ext
filter_ext:
TargetFilename|endswith:
- '.icm'
- '.gmmp'
- '.cdmp'
- '.camp'
Exclusions
The rule actively suppresses these predicates.
| Field | Kind | Excluded values | Search |
|---|---|---|---|
TargetFilename | ends_with | .camp | excludes:TargetFilename field:"TargetFilename" value:".camp" |
TargetFilename | ends_with | .cdmp | excludes:TargetFilename field:"TargetFilename" value:".cdmp" |
TargetFilename | ends_with | .gmmp | excludes:TargetFilename field:"TargetFilename" value:".gmmp" |
TargetFilename | ends_with | .icm | excludes:TargetFilename field:"TargetFilename" value:".icm" |
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
Image | ends_with |
| field:"Image" kind:ends_with value:"\colorcpl.exe" |