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Convert indexed Sigma rules into analyst-ready detections.

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Indexed Rules

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Backends

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CLI Versions

Newest: 2.0.2

Translation Workspace

Shape the rule before it leaves Phoenix

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Active Rule

HackTool - CobaltStrike Malleable Profile Patterns - Proxy

sigma-cli version

Backend

Format

Target Profile

Splunk

Splunk SPL & tstats data model queries

Format Mode

Default

Plain SPL queries

Conversion Output

HackTool - CobaltStrike Malleable Profile Patterns - Proxy

Using Splunk · Default · sigma-cli 2.0.2

Translation controls

Adjust the rule on the left, then regenerate when you want a fresh backend-native query.

BackendSplunkFormatDefaultVersion2.0.2

title: HackTool - CobaltStrike Malleable Profile Patterns - Proxy
id: f3f21ce1-cdef-4bfc-8328-ed2e826f5fac
related:
    - id: 953b895e-5cc9-454b-b183-7f3db555452e
      type: obsolete
    - id: 41b42a36-f62c-4c34-bd40-8cb804a34ad8
      type: obsolete
    - id: 37325383-740a-403d-b1a2-b2b4ab7992e7
      type: obsolete
    - id: c9b33401-cc6a-4cf6-83bb-57ddcb2407fc
      type: obsolete
status: test
description: Detects cobalt strike malleable profiles patterns (URI, User-Agents, Methods).
references:
    - https://github.com/rsmudge/Malleable-C2-Profiles/blob/26323784672913923d20c5a638c6ca79459e8529/normal/amazon.profile
    - https://www.hybrid-analysis.com/sample/ee5eca8648e45e2fea9dac0d920ef1a1792d8690c41ee7f20343de1927cc88b9?environmentId=100
    - https://github.com/rsmudge/Malleable-C2-Profiles/blob/26323784672913923d20c5a638c6ca79459e8529/normal/ocsp.profile
    - https://github.com/yeyintminthuhtut/Malleable-C2-Profiles-Collection/
    - https://github.com/rsmudge/Malleable-C2-Profiles/blob/26323784672913923d20c5a638c6ca79459e8529/normal/onedrive_getonly.profile
author: Markus Neis, Florian Roth (Nextron Systems)
date: 2024-02-15
tags:
    - attack.defense-evasion
    - attack.command-and-control
    - attack.t1071.001
logsource:
    category: proxy
detection:
    selection_amazon_1:
        c-useragent: 'Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko'
        cs-method: 'GET'
        c-uri: '/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books'
        cs-host: 'www.amazon.com'
        cs-cookie|endswith: '=csm-hit=s-24KU11BB82RZSYGJ3BDK|1419899012996'
    selection_amazon_2:
        c-useragent: 'Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko'
        cs-method: 'POST'
        c-uri: '/N4215/adj/amzn.us.sr.aps'
        cs-host: 'www.amazon.com'
    selection_generic_1:
        c-useragent:
            - 'Mozilla/4.0 (compatible; MSIE 6.0;Windows NT 5.1)'
            - 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 3.0.30729; .NET4.0C; .NET4.0E )'
            - 'Mozilla/5.0 (Windows; U; MSIE 7.0; Windows NT 5.2) Java/1.5.0_08'
    selection_generic_2:
        c-useragent|endswith: '; MANM; MANM)'
    selection_oscp:
        c-uri|contains: '/oscp/'
        cs-host: 'ocsp.verisign.com'
    selection_onedrive:
        cs-method: 'GET'
        c-uri|endswith: '\?manifest=wac'
        cs-host: 'onedrive.live.com'
    filter_main_onedrive:
        c-uri|startswith: 'http'
        c-uri|contains: '://onedrive.live.com/'
    condition: 1 of selection_* and not 1 of filter_main_*
falsepositives:
    - Unknown
level: high

CLI command

Copy the exact command to reproduce this translation locally.

sigma convert --without-pipeline -t splunk -f default rules/web/proxy_generic/proxy_hktl_cobalt_strike_malleable_c2_requests.yml