Run Once Task Execution as Configured in Registry

Severity: low
Author: Avneet Singh @v3t0_, oscd.community, Christopher Peacock @SecurePeacock (updated)
Source: upstream

This rule detects the execution of Run Once task as configured in the registry

MITRE ATT&CK coverage

Tactic	Techniques
Persistence	`T1112` Modify Registry
Defense Evasion	`T1112` Modify Registry

Event coverage

Provider	Event ID	Title
Sysmon	1	Process creation

Stages and Predicates

Stage 1: `all of selection_img`

or:
Description: 'Run Once Wrapper'
Image|endswith: '\runonce.exe'

Stage 2: `all of selection_cli`

or:
CommandLine|endswith: '/r'
CommandLine|contains: '/AlternateShellStartup'

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`	ends_with	`/r`
`CommandLine`	match	`/AlternateShellStartup`
`Description`	eq	`Run Once Wrapper`
`Image`	ends_with	`\runonce.exe` corpus 4 (sigma 4)