Inveigh Execution via Process Creation (Windows)

Detects execution of Inveigh.exe on Windows with spoofing/sniffing command-line flags consistent with MITM behavior.

FreeReviewedSigma · Critical · v2

Product: windows
Category: process_creation
Author: Nasreddine Bencherchali (Nextron Systems) (SigmaHQ), DRL 1.1
Published: 2022-10-24
Updated: 2026-07-31

ATT&CK techniques

Cred Access

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
- T1003.001LSASS Memory
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule flags execution of Inveigh by matching process creation details for Inveigh.exe or its original file name, along with the Inveigh product description. It also requires command-line arguments commonly used for spoofing and traffic interception (e.g., SpooferIP and SnifferIP, plus ReplyTo* parameters). Such activity matters because Inveigh is used for IPv4/IPv6 MITM-style operations to capture or influence network credentials, and the rule relies on Windows process creation telemetry including Image path, original file name, description, and command line.

Reporting behind it

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Inveigh Execution via Process Creation (Windows)

Pivot detection · T1003.001 · 9 related

Changelog

v2
Candidate ingested via manual entry.2026-07-31
v1
No changelog recorded for this version.2026-07-30

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

windows-inveigh-mitm-tool-execution-via-inveigh-exe-flags-b99a1518

title: Inveigh Execution via Process Creation (Windows)
id: f9edb79f-5431-42b7-8af6-bf973de293c9
status: test
description: This rule flags execution of Inveigh by matching process creation details for Inveigh.exe or its original file name, along with the Inveigh product description. It also requires command-line arguments commonly used for spoofing and traffic interception (e.g., SpooferIP and SnifferIP, plus ReplyTo* parameters). Such activity matters because Inveigh is used for IPv4/IPv6 MITM-style operations to capture or influence network credentials, and the rule relies on Windows process creation telemetry including Image path, original file name, description, and command line.
references:
  - https://github.com/Kevin-Robertson/Inveigh
  - https://thedfirreport.com/2020/11/23/pysa-mespinoza-ransomware/
  - https://github.com/SigmaHQ/sigma/blob/master/rules/windows/process_creation/proc_creation_win_hktl_inveigh.yml
author: Nasreddine Bencherchali (Nextron Systems), Huntrule Team
date: 2022-10-24
modified: 2023-02-04
tags:
  - attack.credential-access
  - attack.t1003.001
logsource:
  category: process_creation
  product: windows
detection:
  selection:
    - Image|endswith: \Inveigh.exe
    - OriginalFileName:
        - \Inveigh.exe
        - \Inveigh.dll
    - Description: Inveigh
    - CommandLine|contains:
        - " -SpooferIP"
        - " -ReplyToIPs "
        - " -ReplyToDomains "
        - " -ReplyToMACs "
        - " -SnifferIP"
  condition: selection
falsepositives:
  - Very unlikely
level: critical
license: DRL-1.1
related:
  - id: b99a1518-1ad5-4f65-bc95-1ffff97a8fd0
    type: derived

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