HackTool - SharpUp PrivEsc Tool Execution

Severity: critical
Author: Florian Roth (Nextron Systems)
Source: upstream

Detects the use of SharpUp, a tool for local privilege escalation

MITRE ATT&CK coverage

Tactic	Techniques
Execution	`T1569.002` System Services: Service Execution
Persistence	`T1574.005` Hijack Execution Flow: Executable Installer File Permissions Weakness
Privilege Escalation	`T1574.005` Hijack Execution Flow: Executable Installer File Permissions Weakness
Defense Evasion	`T1574.005` Hijack Execution Flow: Executable Installer File Permissions Weakness
Discovery	`T1615` Group Policy Discovery

Event coverage

Provider	Event ID	Title
Sysmon	1	Process creation

Stages and Predicates

Stage 1: `selection`

or:
CommandLine|contains: CachedGPPPassword
CommandLine|contains: DomainGPPPassword
CommandLine|contains: HijackablePaths
CommandLine|contains: ModifiableScheduledTask
CommandLine|contains: ModifiableServiceBinaries
CommandLine|contains: ProcessDLLHijack
CommandLine|contains: UnquotedServicePath
Description: SharpUp
Image|endswith: '\SharpUp.exe'

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.