Detection rules › Sigma

New BgInfo.EXE Custom VBScript Registry Configuration

Severity
medium
Author
Nasreddine Bencherchali (Nextron Systems)
Source
upstream

Detects setting of a new registry value related to BgInfo configuration, which can be abused to execute custom VBScript via "BgInfo.exe"

MITRE ATT&CK coverage

TacticTechniques
PersistenceT1112 Modify Registry
Defense EvasionT1112 Modify Registry

Event coverage

ProviderEvent IDTitle
Sysmon13RegistryEvent (Value Set)

Stages and Predicates

Stage 1: selection

Details|startswith: 4
TargetObject|contains: '\Software\Winternals\BGInfo\UserFields\'

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.

FieldKindValues
Detailsstarts_with
  • 4
TargetObjectmatch
  • \Software\Winternals\BGInfo\UserFields\ corpus 2 (sigma 2)