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Detection rules › Sigma

Lolbas OneDriveStandaloneUpdater.exe Proxy Download

Status
test
Severity
high
Log source
product windows, category registry_set
Author
frack113
Source
github.com/SigmaHQ/sigma

Detects setting a custom URL for OneDriveStandaloneUpdater.exe to download a file from the Internet without executing any anomalous executables with suspicious arguments. The downloaded file will be in C:\Users\redacted\AppData\Local\Microsoft\OneDrive\StandaloneUpdaterreSignInSettingsConfig.json

MITRE ATT&CK coverage

TacticTechniques
Command & ControlT1105 Ingress Tool Transfer

Event coverage

ProviderEventTitle
SysmonEvent ID 13RegistryEvent (Value Set)

Rule body yaml

title: Lolbas OneDriveStandaloneUpdater.exe Proxy Download
id: 3aff0be0-7802-4a7e-a4fa-c60c74bc5e1d
status: test
description: |
    Detects setting a custom URL for OneDriveStandaloneUpdater.exe to download a file from the Internet without executing any
    anomalous executables with suspicious arguments. The downloaded file will be in C:\Users\redacted\AppData\Local\Microsoft\OneDrive\StandaloneUpdaterreSignInSettingsConfig.json
references:
    - https://lolbas-project.github.io/lolbas/Binaries/OneDriveStandaloneUpdater/
author: frack113
date: 2022-05-28
modified: 2023-08-17
tags:
    - attack.command-and-control
    - attack.t1105
logsource:
    category: registry_set
    product: windows
detection:
    selection:
        TargetObject|contains: '\SOFTWARE\Microsoft\OneDrive\UpdateOfficeConfig\UpdateRingSettingURLFromOC'
    condition: selection
falsepositives:
    - Unknown
level: high

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    TargetObject|contains: '\SOFTWARE\Microsoft\OneDrive\UpdateOfficeConfig\UpdateRingSettingURLFromOC'

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.

FieldKindValues
TargetObjectmatch
  • \SOFTWARE\Microsoft\OneDrive\UpdateOfficeConfig\UpdateRingSettingURLFromOC