Password Protected ZIP File Opened (Suspicious Filenames)

testhigh
Log-Quelle: windows · securityAutor Florian Roth (Nextron Systems)Datum 2022-05-09
01

Beschreibung

Was dies ist, in Kürze.

Detects the extraction of password protected ZIP archives with suspicious file names. See the filename variable for more details on which file has been opened.

02

Tags

attack.command-and-controlattack.stealthattack.t1027attack.t1105attack.t1036
03

Regelquelle (YAML)

title: Password Protected ZIP File Opened (Suspicious Filenames)
id: 54f0434b-726f-48a1-b2aa-067df14516e4
status: test
description: Detects the extraction of password protected ZIP archives with suspicious file names. See the filename variable for more details on which file has been opened.
references:
    - https://twitter.com/sbousseaden/status/1523383197513379841
author: Florian Roth (Nextron Systems)
date: 2022-05-09
tags:
    - attack.command-and-control
    - attack.stealth
    - attack.t1027
    - attack.t1105
    - attack.t1036
logsource:
    product: windows
    service: security
detection:
    selection:
        EventID: 5379
        TargetName|contains: 'Microsoft_Windows_Shell_ZipFolder:filename'
    selection_filename:
        TargetName|contains:
            - 'invoice'
            - 'new order'
            - 'rechnung'
            - 'factura'
            - 'delivery'
            - 'purchase'
            - 'order'
            - 'payment'
    condition: selection and selection_filename
falsepositives:
    - Legitimate used of encrypted ZIP files
level: high
04

erkennt Techniken (3)

ATT&CK-Techniken, die dies ermöglicht oder abbildet.

05

Referenzen

Externe Belege — Patches, Meldungen, Analysen.