Wow6432Node CurrentVersion Autorun Keys Modification

Status: test
Severity: medium
Log source: product windows, category registry_set
Author: Victor Sergeev, Daniil Yugoslavskiy, Gleb Sukhodolskiy, Timur Zinniatullin, oscd.community, Tim Shelton, frack113 (split)
Source: github.com/SigmaHQ/sigma

Detects modification of autostart extensibility point (ASEP) in registry.

MITRE ATT&CK coverage

Tactic	Techniques
Persistence	`T1547.001` Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder
Privilege Escalation	`T1547.001` Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder

Event coverage

Provider	Event	Title
Sysmon	Event ID 13	RegistryEvent (Value Set)

Rule body yaml

title: Wow6432Node CurrentVersion Autorun Keys Modification
id: b29aed60-ebd1-442b-9cb5-16a1d0324adb
related:
    - id: 17f878b8-9968-4578-b814-c4217fc5768c
      type: obsolete
status: test
description: Detects modification of autostart extensibility point (ASEP) in registry.
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1547.001/T1547.001.md
    - https://learn.microsoft.com/en-us/sysinternals/downloads/autoruns
    - https://gist.github.com/GlebSukhodolskiy/0fc5fa5f482903064b448890db1eaf9d # a list with registry keys
    - https://oddvar.moe/2018/03/21/persistence-using-runonceex-hidden-from-autoruns-exe/
author: Victor Sergeev, Daniil Yugoslavskiy, Gleb Sukhodolskiy, Timur Zinniatullin, oscd.community, Tim Shelton, frack113 (split)
date: 2019-10-25
modified: 2025-12-08
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.t1547.001
logsource:
    category: registry_set
    product: windows
detection:
    selection_wow_current_version_base:
        TargetObject|contains: '\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion'
    selection_wow_current_version_keys:
        TargetObject|contains:
            - '\ShellServiceObjectDelayLoad'
            - '\Run\'
            - '\RunOnce\'
            - '\RunOnceEx\'
            - '\RunServices\'
            - '\RunServicesOnce\'
            - '\Explorer\ShellServiceObjects'
            - '\Explorer\ShellIconOverlayIdentifiers'
            - '\Explorer\ShellExecuteHooks'
            - '\Explorer\SharedTaskScheduler'
            - '\Explorer\Browser Helper Objects'
    filter_main_empty:
        Details: '(Empty)'
    filter_main_null:
        Details: null
    filter_main_ms_win_desktop_runtime:
        Details|startswith: '"C:\ProgramData\Package Cache\{d21a4f20-968a-4b0c-bf04-a38da5f06e41}\windowsdesktop-runtime-'
    filter_main_vcredist:
        Image|endswith: '\VC_redist.x64.exe'
        Details|endswith: '}\VC_redist.x64.exe" /burn.runonce'
    filter_main_upgrades:
        Image|startswith:
            - 'C:\ProgramData\Package Cache'
            - 'C:\Windows\Temp\'
        Image|contains:
            - '\winsdksetup.exe'
            - '\windowsdesktop-runtime-'  # C:\WINDOWS\Temp\{751E2E78-46DC-4376-9205-99219CDC34AE}\.be\windowsdesktop-runtime-6.0.12-win-x86.exe
            - '\AspNetCoreSharedFrameworkBundle-'  # "C:\ProgramData\Package Cache\{b52191c1-a9c0-4b34-9a4e-930c2dd8a540}\AspNetCoreSharedFrameworkBundle-x86.exe" /burn.runonce
        Details|endswith: ' /burn.runonce'
    filter_main_uninstallers:
        # This image path is linked with different uninstallers when running as admin unfortunately
        Image|startswith: 'C:\Windows\Installer\MSI'
        TargetObject|contains: '\Explorer\Browser Helper Objects'
    filter_main_msiexec:
        Image: 'C:\WINDOWS\system32\msiexec.exe'
        TargetObject|contains: '\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\'
    filter_main_edge:
        Image|contains|all:
            - 'C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{'
            - '\setup.exe'
    filter_optional_msoffice1:
        Image: 'C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe'
        TargetObject|contains: '\Office\ClickToRun\REGISTRY\MACHINE\Software\Wow6432Node\'
    filter_optional_msoffice2:
        Image:
            - 'C:\Program Files\Microsoft Office\root\integration\integrator.exe'
            - 'C:\Program Files (x86)\Microsoft Office\root\integration\integrator.exe'
        TargetObject|contains: '\Explorer\Browser Helper Objects\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}\'
    filter_optional_dropbox:
        - Details|endswith: '-A251-47B7-93E1-CDD82E34AF8B}'
        - Details: 'grpconv -o'
        - Details|contains|all:
              - 'C:\Program Files'
              - '\Dropbox\Client\Dropbox.exe'
              - ' /systemstartup'
    filter_optional_evernote:
        TargetObject|endswith: '\Explorer\Browser Helper Objects\{92EF2EAD-A7CE-4424-B0DB-499CF856608E}\NoExplorer'
    filter_optional_dotnet:
        Image|contains: '\windowsdesktop-runtime-'
        TargetObject|endswith:
            - '\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\{e2d1ae32-dd1d-4ad7-a298-10e42e7840fc}'
            - '\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\{7037b699-7382-448c-89a7-4765961d2537}'
        Details|startswith: '"C:\ProgramData\Package Cache\'
        Details|endswith: '.exe" /burn.runonce'
    filter_optional_office:
        Image|startswith:
            - 'C:\Program Files\Common Files\Microsoft Shared\ClickToRun\'
            - 'C:\Program Files\Common Files\Microsoft Shared\ClickToRun\Updates\'
        Image|endswith: '\OfficeClickToRun.exe'
    filter_optional_discord:
        TargetObject|endswith: '\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Discord'
        Details|endswith: 'Discord.exe --checkInstall'
    filter_optional_avira:
        Details|endswith: '\Avira.OE.Setup.Bundle.exe" /burn.runonce'
        Image|endswith: '\Avira.OE.Setup.Bundle.exe'
    filter_optional_avg_1:
        Image|endswith: '\instup.exe'
        TargetObject|endswith: '\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\AvRepair'
        Details|endswith: 'instup.exe" /instop:repair /wait'
    filter_optional_avg_2:
        Image|endswith: '\instup.exe'
        TargetObject|endswith:
            - '\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\00avg\(Default)'
            - '\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\00asw\(Default)'
        Details:
            - '{472083B1-C522-11CF-8763-00608CC02F24}'
            - '{472083B0-C522-11CF-8763-00608CC02F24}'
    condition: all of selection_* and not 1 of filter_main_* and not 1 of filter_optional_*
falsepositives:
    - Legitimate software automatically (mostly, during installation) sets up autorun keys for legitimate reason
    - Legitimate administrator sets up autorun keys for legitimate reason
level: medium

Stages and Predicates

Stage 0: `condition`

all of selection_* and not 1 of filter_main_* and not 1 of filter_optional_*

Stage 1: `selection_wow_current_version_base`

selection_wow_current_version_base:
    TargetObject|contains: '\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion'

Stage 2: `selection_wow_current_version_keys`

selection_wow_current_version_keys:
    TargetObject|contains:
        - '\ShellServiceObjectDelayLoad'
        - '\Run\'
        - '\RunOnce\'
        - '\RunOnceEx\'
        - '\RunServices\'
        - '\RunServicesOnce\'
        - '\Explorer\ShellServiceObjects'
        - '\Explorer\ShellIconOverlayIdentifiers'
        - '\Explorer\ShellExecuteHooks'
        - '\Explorer\SharedTaskScheduler'
        - '\Explorer\Browser Helper Objects'

Stage 3: `not filter_main_*`

filter_main_empty:
    Details: '(Empty)'
filter_main_null:
    Details: null
filter_main_ms_win_desktop_runtime:
    Details|startswith: '"C:\ProgramData\Package Cache\{d21a4f20-968a-4b0c-bf04-a38da5f06e41}\windowsdesktop-runtime-'
filter_main_vcredist:
    Image|endswith: '\VC_redist.x64.exe'
    Details|endswith: '}\VC_redist.x64.exe" /burn.runonce'
filter_main_upgrades:
    Image|startswith:
        - 'C:\ProgramData\Package Cache'
        - 'C:\Windows\Temp\'
    Image|contains:
        - '\winsdksetup.exe'
        - '\windowsdesktop-runtime-'
        - '\AspNetCoreSharedFrameworkBundle-'
    Details|endswith: ' /burn.runonce'
filter_main_uninstallers:
    Image|startswith: 'C:\Windows\Installer\MSI'
    TargetObject|contains: '\Explorer\Browser Helper Objects'
filter_main_msiexec:
    Image: 'C:\WINDOWS\system32\msiexec.exe'
    TargetObject|contains: '\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\'
filter_main_edge:
    Image|contains|all:
        - 'C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{'
        - '\setup.exe'

Stage 4: `not filter_optional_*`

filter_optional_msoffice1:
    Image: 'C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe'
    TargetObject|contains: '\Office\ClickToRun\REGISTRY\MACHINE\Software\Wow6432Node\'
filter_optional_msoffice2:
    Image:
        - 'C:\Program Files\Microsoft Office\root\integration\integrator.exe'
        - 'C:\Program Files (x86)\Microsoft Office\root\integration\integrator.exe'
    TargetObject|contains: '\Explorer\Browser Helper Objects\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}\'
filter_optional_dropbox:
    - Details|endswith: '-A251-47B7-93E1-CDD82E34AF8B}'
    - Details: 'grpconv -o'
    - Details|contains|all:
          - 'C:\Program Files'
          - '\Dropbox\Client\Dropbox.exe'
          - ' /systemstartup'
filter_optional_evernote:
    TargetObject|endswith: '\Explorer\Browser Helper Objects\{92EF2EAD-A7CE-4424-B0DB-499CF856608E}\NoExplorer'
filter_optional_dotnet:
    Image|contains: '\windowsdesktop-runtime-'
    TargetObject|endswith:
        - '\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\{e2d1ae32-dd1d-4ad7-a298-10e42e7840fc}'
        - '\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\{7037b699-7382-448c-89a7-4765961d2537}'
    Details|startswith: '"C:\ProgramData\Package Cache\'
    Details|endswith: '.exe" /burn.runonce'
filter_optional_office:
    Image|startswith:
        - 'C:\Program Files\Common Files\Microsoft Shared\ClickToRun\'
        - 'C:\Program Files\Common Files\Microsoft Shared\ClickToRun\Updates\'
    Image|endswith: '\OfficeClickToRun.exe'
filter_optional_discord:
    TargetObject|endswith: '\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Discord'
    Details|endswith: 'Discord.exe --checkInstall'
filter_optional_avira:
    Details|endswith: '\Avira.OE.Setup.Bundle.exe" /burn.runonce'
    Image|endswith: '\Avira.OE.Setup.Bundle.exe'
filter_optional_avg_1:
    Image|endswith: '\instup.exe'
    TargetObject|endswith: '\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\AvRepair'
    Details|endswith: 'instup.exe" /instop:repair /wait'
filter_optional_avg_2:
    Image|endswith: '\instup.exe'
    TargetObject|endswith:
        - '\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\00avg\(Default)'
        - '\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\00asw\(Default)'
    Details:
        - '{472083B1-C522-11CF-8763-00608CC02F24}'
        - '{472083B0-C522-11CF-8763-00608CC02F24}'

Exclusions

Top-level NOT(...) conjuncts: predicates this rule actively suppresses.

Field	Kind	Excluded values
`Image`	match	`\AspNetCoreSharedFrameworkBundle-`
`Image`	match	`\windowsdesktop-runtime-`
`Image`	match	`\winsdksetup.exe`
`Image`	starts_with	`C:\ProgramData\Package Cache`
`Image`	starts_with	`C:\Windows\Temp\`
`Details`	ends_with	`/burn.runonce`
`Details`	ends_with	`}\VC_redist.x64.exe" /burn.runonce`
`Image`	ends_with	`\VC_redist.x64.exe`
`Image`	eq	`C:\WINDOWS\system32\msiexec.exe`
`TargetObject`	match	`\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\`
`Image`	match	`C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{`
`Image`	match	`\setup.exe`
`Image`	starts_with	`C:\Windows\Installer\MSI`
`TargetObject`	match	`\Explorer\Browser Helper Objects`
`Details`	eq	`(Empty)`
`Details`	is_null	(no value, null check)
`Details`	starts_with	`"C:\ProgramData\Package Cache\{d21a4f20-968a-4b0c-bf04-a38da5f06e41}\windowsdesktop-runtime-`
`Details`	eq	`{472083B0-C522-11CF-8763-00608CC02F24}`
`Details`	eq	`{472083B1-C522-11CF-8763-00608CC02F24}`
`TargetObject`	ends_with	`\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\00asw\(Default)`
`TargetObject`	ends_with	`\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\00avg\(Default)`
`Image`	ends_with	`\instup.exe`
`Image`	eq	`C:\Program Files (x86)\Microsoft Office\root\integration\integrator.exe`
`Image`	eq	`C:\Program Files\Microsoft Office\root\integration\integrator.exe`
`TargetObject`	match	`\Explorer\Browser Helper Objects\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}\`
`Image`	starts_with	`C:\Program Files\Common Files\Microsoft Shared\ClickToRun\`
`Image`	starts_with	`C:\Program Files\Common Files\Microsoft Shared\ClickToRun\Updates\`
`Image`	ends_with	`\OfficeClickToRun.exe`
`TargetObject`	ends_with	`\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\{7037b699-7382-448c-89a7-4765961d2537}`
`TargetObject`	ends_with	`\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\{e2d1ae32-dd1d-4ad7-a298-10e42e7840fc}`
`Details`	ends_with	`.exe" /burn.runonce`
`Details`	starts_with	`"C:\ProgramData\Package Cache\`
`Image`	match	`\windowsdesktop-runtime-`
`Details`	ends_with	`Discord.exe --checkInstall`
`TargetObject`	ends_with	`\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Discord`
`Details`	ends_with	`\Avira.OE.Setup.Bundle.exe" /burn.runonce`
`Image`	ends_with	`\Avira.OE.Setup.Bundle.exe`
`Details`	ends_with	`instup.exe" /instop:repair /wait`
`Image`	ends_with	`\instup.exe`
`TargetObject`	ends_with	`\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\AvRepair`
`Details`	match	`/systemstartup`
`Details`	match	`C:\Program Files`
`Details`	match	`\Dropbox\Client\Dropbox.exe`
`Image`	eq	`C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe`
`TargetObject`	match	`\Office\ClickToRun\REGISTRY\MACHINE\Software\Wow6432Node\`
`Details`	ends_with	`-A251-47B7-93E1-CDD82E34AF8B}`
`Details`	eq	`grpconv -o`
`TargetObject`	ends_with	`\Explorer\Browser Helper Objects\{92EF2EAD-A7CE-4424-B0DB-499CF856608E}\NoExplorer`

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
`TargetObject`	match	`\Explorer\Browser Helper Objects` corpus 2 (sigma 2) `\Explorer\SharedTaskScheduler` corpus 2 (sigma 2) `\Explorer\ShellExecuteHooks` corpus 2 (sigma 2) `\Explorer\ShellIconOverlayIdentifiers` corpus 2 (sigma 2) `\Explorer\ShellServiceObjects` corpus 2 (sigma 2) `\RunOnceEx\` corpus 2 (sigma 2) `\RunOnce\` corpus 2 (sigma 2) `\RunServicesOnce\` corpus 2 (sigma 2) `\RunServices\` corpus 2 (sigma 2) `\Run\` corpus 2 (sigma 2) `\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion` `\ShellServiceObjectDelayLoad` corpus 2 (sigma 2)

`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)

Wow6432Node CurrentVersion Autorun Keys Modification

MITRE ATT&CK coverage

Event coverage

Rule body yaml

Stages and Predicates

Stage 0: `condition`

Stage 1: `selection_wow_current_version_base`

Stage 2: `selection_wow_current_version_keys`

Stage 3: `not filter_main_*`

Stage 4: `not filter_optional_*`

Exclusions

Indicators

Keyboard shortcuts

Search operators

Wow6432Node CurrentVersion Autorun Keys Modification

MITRE ATT&CK coverage

Event coverage

Rule body yaml

Stages and Predicates

Stage 0: condition

Stage 1: selection_wow_current_version_base

Stage 2: selection_wow_current_version_keys

Stage 3: not filter_main_*

Stage 4: not filter_optional_*

Exclusions

Indicators

Stage 0: `condition`

Stage 1: `selection_wow_current_version_base`

Stage 2: `selection_wow_current_version_keys`

Stage 3: `not filter_main_*`

Stage 4: `not filter_optional_*`