title: Azure Application Gateway Modified or Deleted
id: ad87d14e-7599-4633-ba81-aeb60cfe8cd6
status: test
description: Identifies when a application gateway is modified or deleted.
references:
    - https://learn.microsoft.com/en-us/azure/role-based-access-control/resource-provider-operations
author: Austin Songer
date: 2021-08-16
modified: 2022-08-23
tags:
    - attack.impact
logsource:
    product: azure
    service: activitylogs
detection:
    selection:
        operationName:
            - MICROSOFT.NETWORK/APPLICATIONGATEWAYS/WRITE
            - MICROSOFT.NETWORK/APPLICATIONGATEWAYS/DELETE
    condition: selection
falsepositives:
    - Application gateway being modified or deleted may be performed by a system administrator.
    - Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.
    - Application gateway modified or deleted from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
level: medium

title: Taskkill Symantec Endpoint Protection
id: 4a6713f6-3331-11ed-a261-0242ac120002
status: test
description: |
    Detects one of the possible scenarios for disabling Symantec Endpoint Protection.
    Symantec Endpoint Protection antivirus software services incorrectly implement the protected service mechanism.
    As a result, the NT AUTHORITY/SYSTEM user can execute the taskkill /im command several times ccSvcHst.exe /f, thereby killing the process belonging to the service, and thus shutting down the service.
references:
    - https://www.exploit-db.com/exploits/37525
    - https://community.spiceworks.com/topic/2195015-batch-script-to-uninstall-symantec-endpoint-protection
    - https://community.broadcom.com/symantecenterprise/communities/community-home/digestviewer/viewthread?MessageKey=6ce94b67-74e1-4333-b16f-000b7fd874f0&CommunityKey=1ecf5f55-9545-44d6-b0f4-4e4a7f5f5e68&tab=digestviewer
author: Ilya Krestinichev, Florian Roth (Nextron Systems)
date: 2022-09-13
tags:
    - attack.defense-impairment
    - attack.t1685
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        CommandLine|contains|all:
            - 'taskkill'
            - ' /F '
            - ' /IM '
            - 'ccSvcHst.exe'
    condition: selection
falsepositives:
    - Unknown
level: high