Potential Zoho Assist RMM Tool Process Activity

SIGMA detection rule by LOLRMM Project · Apache-2.0

Detects potential processes activity of Zoho Assist RMM tool

title: Potential Zoho Assist RMM Tool Process Activity
id: f57c281c-5d94-43d1-8ba2-d2c95d01e871
status: experimental
description: |
    Detects potential processes activity of Zoho Assist RMM tool
references:
    - https://github.com/magicsword-io/LOLRMM
author: LOLRMM Project
date: 2025-12-01
modified: 2026-09-02
tags:
    - attack.command-and-control
    - attack.t1219
logsource:
    product: windows
    category: process_creation
detection:
    selection_parent:
        ParentImage|endswith:
            - '\\toolsiq.exe'
            - '\\zaservice.exe'
            - '\\ZMAgent.exe'
            - '\\ZohoMeeting.exe'
            - '\\Zohours.exe'
            - '\\zohotray.exe'
            - '\\ZohoURSService.exe'
            - '\\ZA_Access.exe'
            - '\\za_connect.exe'
            - '\\connect.exe'
    selection_image:
        Image|endswith:
            - '\\toolsiq.exe'
            - '\\zaservice.exe'
            - '\\ZMAgent.exe'
            - '\\ZohoMeeting.exe'
            - '\\Zohours.exe'
            - '\\zohotray.exe'
            - '\\ZohoURSService.exe'
            - '\\ZA_Access.exe'
            - '\\za_connect.exe'
            - '\\connect.exe'
    condition: 1 of selection_*
falsepositives:
    - Legitimate use of Zoho Assist
level: medium

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

c2cc57d0-b638-4f39-bcff-7d0cc4cfd067

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Executable code, not a declarative rule

This submission is arbitrary [[ currentRule.format ? currentRule.format.toUpperCase() : '' ]] code, not a declarative detection rule — review it as you would any script before running it, and note that it cannot be safely aggregated or auto-executed alongside YARA/Sigma/Suricata/CRS rules.

Rejected pattern present

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Format & documentation suggestions

Not a security issue — this rule is valid and was accepted as-is. These are optional fields/conventions its own format recommends, mainly affecting its quality score and how well it documents itself for other reviewers.

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[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

[[ currentRule.title ]]

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