Detection rules › Sigma

Potential SentinelOne Shell Context Menu Scan Command Tampering

Severity
medium
Author
Nasreddine Bencherchali (Nextron Systems)
Source
upstream

Detects potentially suspicious changes to the SentinelOne context menu scan command by a process other than SentinelOne.

Event coverage

ProviderEvent IDTitle
Sysmon13RegistryEvent (Value Set)

Stages and Predicates

Stage 1: selection

TargetObject|contains: '\shell\SentinelOneScan\command\'

Stage 2: not 1 of filter_main_*

or:
or:
Details|startswith: 'C:\Program Files (x86)\SentinelOne\Sentinel Agent'
Details|startswith: 'C:\Program Files\SentinelOne\Sentinel Agent'
Details|contains: '\SentinelScanFromContextMenu.exe'
Image|endswith: 'C:\Program Files (x86)\SentinelOne\'
Image|endswith: 'C:\Program Files\SentinelOne\'

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
Detailsmatch
  • \SentinelScanFromContextMenu.exe
Detailsstarts_with
  • C:\Program Files (x86)\SentinelOne\Sentinel Agent
  • C:\Program Files\SentinelOne\Sentinel Agent
Imageends_with
  • C:\Program Files (x86)\SentinelOne\
  • C:\Program Files\SentinelOne\
TargetObjectmatch
  • \shell\SentinelOneScan\command\