Detection rules › Sigma
Replace.exe Usage
Detects the use of Replace.exe which can be used to replace file with another file
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Command & Control |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Sysmon | Event ID 1: Process creation |
| Security-Auditing | Event ID 4688: A new process has been created. |
Rule body
title: Replace.exe Usage
id: 9292293b-8496-4715-9db6-37028dcda4b3
status: test
description: Detects the use of Replace.exe which can be used to replace file with another file
references:
- https://lolbas-project.github.io/lolbas/Binaries/Replace/
- https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/replace
author: frack113
date: 2022-03-06
modified: 2024-03-13
tags:
- attack.command-and-control
- attack.t1105
logsource:
category: process_creation
product: windows
detection:
selection:
Image|endswith: '\replace.exe'
argument:
CommandLine|contains|windash: '-a'
condition: selection and argument
falsepositives:
- Unknown
level: medium
Stages and Predicates
Stage 0: condition
selection and argumentStage 1: selection
selection:
Image|endswith: '\replace.exe'
Stage 2: argument
argument:
CommandLine|contains|windash: '-a'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
CommandLine | match |
| field:"CommandLine" kind:match value:"-a" |
Image | ends_with |
| field:"Image" kind:ends_with value:"\replace.exe" |