title: CVE-2020-0688 Exploitation via Eventlog
id: d6266bf5-935e-4661-b477-78772735a7cb
status: experimental
description: Detects the exploitation of Microsoft Exchange vulnerability as described in CVE-2020-0688 
references:
    - https://www.trustedsec.com/blog/detecting-cve-20200688-remote-code-execution-vulnerability-on-microsoft-exchange-server/
    - https://cyberpolygon.com/materials/okhota-na-ataki-ms-exchange-chast-2-cve-2020-0688-cve-2020-16875-cve-2021-24085/
author: Florian Roth, wagga
date: 2020/02/29
modified: 2021/10/13
tags:
    - attack.initial_access
    - attack.t1190
logsource:
    product: windows
    service: application
detection:
    selection1:
        EventID: 4
        Provider_Name: 'MSExchange Control Panel'
        Level: Error
    selection2:
        - '&__VIEWSTATE='
    condition: selection1 and selection2
falsepositives:
    - Unknown
level: high
