Sigma rule: Potential Attachment Manager Settings Attachments Tamper

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-601fcc39c634, updated 2023-08-17T00:00:00.000Z.

Rule

Title: Potential Attachment Manager Settings Attachments Tamper
Status: test
Level: high
Author: Nasreddine Bencherchali (Nextron Systems)
Date: 2022-08-01
Modified: 2023-08-17
File: rules/windows/registry/registry_set/registry_set_policies_attachments_tamper.yml
Commit: ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects tampering with attachment manager settings policies attachments (See reference for more information)

Log source

product: windows
category: registry_set

Detection

selection_main:
    TargetObject|contains: '\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Attachments\'
selection_value_hide_zone_info:
    TargetObject|endswith: '\HideZoneInfoOnProperties'
    Details: 'DWORD (0x00000001)' # On
selection_value_save_zone_info:
    TargetObject|endswith: '\SaveZoneInformation'
    Details: 'DWORD (0x00000002)' # Off
selection_value_scan_with_av:
    TargetObject|endswith: '\ScanWithAntiVirus'
    Details: 'DWORD (0x00000001)' # Disabled
condition: selection_main and 1 of selection_value_*

False positives (as the rule lists them)

Unlikely

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/registry/registry_set/registry_set_policies_attachments_tamper.yml

Sources and licences

SigmaHQ
"Potential Attachment Manager Settings Attachments Tamper" by Nasreddine Bencherchali (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/registry/registry_set/registry_set_policies_attachments_tamper.yml.
Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License
Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Potential Attachment Manager Settings Attachments Tamper",
entity page, dataset version ref-601fcc39c634, updated 2023-08-17T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/ee77a5db-b0f3-4be2-bfd4-b58be1c6b15a (accessed 2026-11-03).
Underlying source: SigmaHQ rule ee77a5db-b0f3-4be2-bfd4-b58be1c6b15a, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.