Detection rules › Sigma
Ps.exe Renamed SysInternals Tool
Detects renamed SysInternals tool execution with a binary named ps.exe as used by Dragonfly APT group and documented in TA17-293A report
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Stealth | T1036.003 Masquerading: Rename Legitimate Utilities |
Event coverage
| Provider | Event | Title |
|---|---|---|
| Sysmon | Event ID 1 | Process creation |
| Security-Auditing | Event ID 4688 | A new process has been created. |
Rule body yaml
title: Ps.exe Renamed SysInternals Tool
id: 18da1007-3f26-470f-875d-f77faf1cab31
status: test
description: Detects renamed SysInternals tool execution with a binary named ps.exe as used by Dragonfly APT group and documented in TA17-293A report
references:
- https://www.us-cert.gov/ncas/alerts/TA17-293A
author: Florian Roth (Nextron Systems)
date: 2017-10-22
modified: 2023-05-02
tags:
- attack.stealth
- attack.g0035
- attack.t1036.003
- car.2013-05-009
- detection.emerging-threats
logsource:
category: process_creation
product: windows
detection:
selection:
CommandLine|contains|all:
- 'ps.exe -accepteula'
- '-s cmd /c netstat'
condition: selection
falsepositives:
- Renamed SysInternals tool
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
CommandLine|contains|all:
- 'ps.exe -accepteula'
- '-s cmd /c netstat'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
CommandLine | match |
|