Potential Persistence Via GlobalFlags

Severity: high
Author: Karneades, Jonhnathan Ribeiro, Florian Roth
Source: upstream

Detects registry persistence technique using the GlobalFlags and SilentProcessExit keys

MITRE ATT&CK coverage

Tactic	Techniques
Persistence	`T1546.012` Event Triggered Execution: Image File Execution Options Injection
Privilege Escalation	`T1546.012` Event Triggered Execution: Image File Execution Options Injection

Event coverage

Provider	Event ID	Title
Sysmon	13	RegistryEvent (Value Set)

Stages and Predicates

Stage 1: `1 of selection_global_flag`

TargetObject|contains: '\GlobalFlag'
TargetObject|contains: '\Image File Execution Options\'
TargetObject|contains: '\Microsoft\Windows NT\CurrentVersion\'

Stage 2: `1 of selection_silent_process`

or:
TargetObject|contains: '\MonitorProcess'
TargetObject|contains: '\ReportingMode'
TargetObject|contains: '\Microsoft\Windows NT\CurrentVersion\'
TargetObject|contains: '\SilentProcessExit\'

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	`\GlobalFlag` `\Image File Execution Options\` corpus 2 (sigma 2) `\Microsoft\Windows NT\CurrentVersion\` `\MonitorProcess` `\ReportingMode` `\SilentProcessExit\`