1200KM / sigma-rule
Potential PowerShell Obfuscation Via WCHAR/CHAR — Sigma Rule
Sigma rule e312efd0-35a1-407f-8439-b8d434b438a6. Potential PowerShell Obfuscation Via WCHAR/CHAR — Sigma Rule. Detects suspicious encoded character syntax often used for defense evasion
Rule metadata and linked tags
Author: Florian Roth (Nextron Systems). Source status: test; severity: high. Source dates: 2020-07-09 / 2025-03-03.
{
"category": "process_creation",
"product": "windows"
}Pinned original Sigma rule · Detection Rule License 1.1
Source SHA-256: 5f9a6d73a8adfc32a857c50adc4fcb76d49aa38192bffb0ab1042a57aa2b69bc
Detection logic
Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.
title: Potential PowerShell Obfuscation Via WCHAR/CHAR
id: e312efd0-35a1-407f-8439-b8d434b438a6
status: test
description: Detects suspicious encoded character syntax often used for defense evasion
references:
- https://twitter.com/0gtweet/status/1281103918693482496
author: Florian Roth (Nextron Systems)
date: 2020-07-09
modified: 2025-03-03
tags:
- attack.execution
- attack.stealth
- attack.t1059.001
- attack.t1027
logsource:
category: process_creation
product: windows
detection:
selection:
CommandLine|contains:
- '[char]0x'
- '(WCHAR)0x'
condition: selection
falsepositives:
- Unknown
level: high
False positives
- Unknown
Source references
Connected ecosystem references
Exact source-tagged techniques
Telemetry review
Read the original logsource above, then inspect the linked detection workspaces for technique-level sensor context. No per-rule telemetry equivalence is inferred.
Pinned research references. No browser attack runner, live simulation result or validated detector is asserted. Source mappings and validation limits are preserved. ATT&CK / Atomic provenance · Detection provenance.