Detection rules › Sigma

Potential Persistence Via MyComputer Registry Keys

Severity
high
Author
Nasreddine Bencherchali (Nextron Systems)
Source
upstream

Detects modification to the "Default" value of the "MyComputer" key and subkeys to point to a custom binary that will be launched whenever the associated action is executed (see reference section for example)

Event coverage

ProviderEvent IDTitle
Sysmon13RegistryEvent (Value Set)

Stages and Predicates

Stage 1: selection

TargetObject|endswith: '(Default)'
TargetObject|contains: '\Microsoft\Windows\CurrentVersion\Explorer\MyComputer'

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
TargetObjectends_with
  • (Default) corpus 2 (sigma 2)
TargetObjectmatch
  • \Microsoft\Windows\CurrentVersion\Explorer\MyComputer