HackTool - Bloodhound/Sharphound Execution

Status: test
Severity: high
Log source: product windows, category process_creation
Author: Florian Roth (Nextron Systems)
Source: github.com/SigmaHQ/sigma

Detects command line parameters used by Bloodhound and Sharphound hack tools

MITRE ATT&CK coverage

Tactic	Techniques
Execution	`T1059.001` Command and Scripting Interpreter: PowerShell
Discovery	`T1069.001` Permission Groups Discovery: Local Groups, `T1069.002` Permission Groups Discovery: Domain Groups, `T1087.001` Account Discovery: Local Account, `T1087.002` Account Discovery: Domain Account, `T1482` Domain Trust Discovery

Event coverage

Provider	Event	Title
Sysmon	Event ID 1	Process creation

Rule body yaml

title: HackTool - Bloodhound/Sharphound Execution
id: f376c8a7-a2d0-4ddc-aa0c-16c17236d962
status: test
description: Detects command line parameters used by Bloodhound and Sharphound hack tools
references:
    - https://github.com/BloodHoundAD/BloodHound
    - https://github.com/BloodHoundAD/SharpHound
author: Florian Roth (Nextron Systems)
date: 2019-12-20
modified: 2023-02-04
tags:
    - attack.discovery
    - attack.t1087.001
    - attack.t1087.002
    - attack.t1482
    - attack.t1069.001
    - attack.t1069.002
    - attack.execution
    - attack.t1059.001
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Product|contains: 'SharpHound'
        - Description|contains: 'SharpHound'
        - Company|contains:
              - 'SpecterOps'
              - 'evil corp'
        - Image|contains:
              - '\Bloodhound.exe'
              - '\SharpHound.exe'
    selection_cli_1:
        CommandLine|contains:
            - ' -CollectionMethod All '
            - ' --CollectionMethods Session '
            - ' --Loop --Loopduration '
            - ' --PortScanTimeout '
            - '.exe -c All -d '
            - 'Invoke-Bloodhound'
            - 'Get-BloodHoundData'
    selection_cli_2:
        CommandLine|contains|all:
            - ' -JsonFolder '
            - ' -ZipFileName '
    selection_cli_3:
        CommandLine|contains|all:
            - ' DCOnly '
            - ' --NoSaveCache '
    condition: 1 of selection_*
falsepositives:
    - Other programs that use these command line option and accepts an 'All' parameter
level: high

Stages and Predicates

Stage 0: `condition`

1 of selection_*

Stage 1: `selection_img`

selection_img:
    - Product|contains: 'SharpHound'
    - Description|contains: 'SharpHound'
    - Company|contains:
          - 'SpecterOps'
          - 'evil corp'
    - Image|contains:
          - '\Bloodhound.exe'
          - '\SharpHound.exe'

Stage 2: `selection_cli_1`

selection_cli_1:
    CommandLine|contains:
        - ' -CollectionMethod All '
        - ' --CollectionMethods Session '
        - ' --Loop --Loopduration '
        - ' --PortScanTimeout '
        - '.exe -c All -d '
        - 'Invoke-Bloodhound'
        - 'Get-BloodHoundData'

Stage 3: `selection_cli_2`

selection_cli_2:
    CommandLine|contains|all:
        - ' -JsonFolder '
        - ' -ZipFileName '

Stage 4: `selection_cli_3`

selection_cli_3:
    CommandLine|contains|all:
        - ' DCOnly '
        - ' --NoSaveCache '

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.

Field	Kind	Values
`CommandLine`	match	`--CollectionMethods Session` `--Loop --Loopduration` `--NoSaveCache` `--PortScanTimeout` `-CollectionMethod All` `-JsonFolder` `-ZipFileName` `DCOnly` `.exe -c All -d` `Get-BloodHoundData` `Invoke-Bloodhound`
`Company`	match	`SpecterOps` `evil corp`
`Description`	match	`SharpHound`
`Image`	match	`\Bloodhound.exe` `\SharpHound.exe`
`Product`	match	`SharpHound`

`j` / `k`	Scroll down / up
`d` / `u`	Half-page down / up
`gg` / `G`	Top / bottom
`h` / `l`	History back / forward
`f`	Follow link (`Shift` = new tab)
`/`	Focus search
`?`	Toggle this help
`↑` / `↓`	Navigate search results
`Enter`	Open highlighted result
`Esc`	Close results / dialog

`type:`	`events` / `rules` / `providers`
`vendor:`	`sigma` / `elastic` / `splunk` / `kusto` / `chronicle` (vendor name alone also works: `sigma:`, `kql:`, `secops:`…)
`tactic:`	TA-id, slug, or name: `credential_access`, `TA0006`
`technique:`	technique or sub-technique ID: `T1003`, `T1003.001` (alias `tech:`)
`severity:`	`critical` / `high` / `medium` / `low` / `informational` (alias `sev:`)
`risk_score`	Numeric comparison on the Elastic risk score (0 to 100): `risk_score>50`, `risk_score<=20`, `risk_score=99` (alias `risk`; Elastic rules only)
`stages:`	Rules with exactly N pipeline stages
`correlation:`	`single_event` / `sequence` / `alternatives` / `alternatives_cross_log` / `all_required` / `correlated`
`with:`	Co-occurrence event-id; stacks (`with:4624 with:4769`) to require all, while a comma list in one occurrence (`with:4624,4769`) is an either-or group. Implies multi-event
`like:`	Structural neighbors of a rule slug (equivalents + subsumption stricter / broader): `like:comsvcs_lsass_memory_dump-splunk-sysmon`
`groupby:`	Entity-grouping substring match against `group_by_keys`: `groupby:user`, `groupby:host`
`uses:`	Rules whose predicate tree touches the field (any kind, any value): `uses:CommandLine`
`excludes:`	Rules with top-level `not()` clauses on the field (FP whitelists): `excludes:ParentImage`
`field:` / `value:`	Predicate search; narrows rule cards to those with a matching leaf and drives the indicator tier. Unquoted = substring, wildcards allowed (`value:mimikatz`)
`indicator:`	Shorthand for `field:F value:V`: `indicator:Image=*\powershell.exe`
`kind:`	Filter by predicate kind. Narrows rule cards to those carrying a matching predicate leaf (`vendor:elastic kind:cidr_match`) and drives the indicator tier: `contains` / `starts_with` / `ends_with` / `regex` / `cidr` / `eq` / `in` … (operator aliases `op:`/`match:`)
`has:` / `no:`	`sample`, `field`, `notes`, `refs`, `trace`, `thirdparty`, `rule`, `pattern`, `timewindow`, `threshold`, `newterms`, `sigma`/`elastic`/`splunk`/`kusto`/`chronicle`
`-op:val`	Exclude matches; works on most operators but not `type:`/`like:`/`has:`/`no:` (use `no:<flag>` to exclude a rule flag): `tactic:execution -vendor:splunk`. Standalone `-kind:`/`-field:`/`-value:` drop every rule carrying a matching predicate leaf (`type:rules -kind:is_null`)
`field:"…"` / `value:"…"`	Quoted value = anchored exact match (also allows spaces): `value:"net user"`
`a,b`	Comma = OR inside one operator (`vendor:sigma,elastic`, `severity:high,critical`); repeating a facet merges the same way. `field:`/`value:` never split (literal commas)
`vendors:` / `stage:`	Singular and plural spellings fold to the canonical operator and value: `tactics:` = `tactic:`, `type:event` = `type:events`, `correlation:sequences` = `correlation:sequence`, `has:thresholds` = `has:threshold`
`"quoted phrase"`	Exact-match a multi-word phrase (free text)

HackTool - Bloodhound/Sharphound Execution

MITRE ATT&CK coverage

Event coverage

Rule body yaml

Stages and Predicates

Stage 0: `condition`

Stage 1: `selection_img`

Stage 2: `selection_cli_1`

Stage 3: `selection_cli_2`

Stage 4: `selection_cli_3`

Indicators

Keyboard shortcuts

Search operators

HackTool - Bloodhound/Sharphound Execution

MITRE ATT&CK coverage

Event coverage

Rule body yaml

Stages and Predicates

Stage 0: condition

Stage 1: selection_img

Stage 2: selection_cli_1

Stage 3: selection_cli_2

Stage 4: selection_cli_3

Indicators

Stage 0: `condition`

Stage 1: `selection_img`

Stage 2: `selection_cli_1`

Stage 3: `selection_cli_2`

Stage 4: `selection_cli_3`