Detection rules › Sigma

Potential Amazon SSM Agent Hijacking

Severity
medium
Author
Muhammad Faisal
Source
upstream

Detects potential Amazon SSM agent hijack attempts as outlined in the Mitiga research report.

MITRE ATT&CK coverage

TacticTechniques
Command & ControlT1219.002 Remote Access Tools: Remote Desktop Software

Event coverage

ProviderEvent IDTitle
Sysmon1Process creation
Security-Auditing4688A new process has been created.

Stages and Predicates

Stage 1: selection

CommandLine|contains: '-code '
CommandLine|contains: '-id '
CommandLine|contains: '-region '
CommandLine|contains: '-register '
Image|endswith: '\amazon-ssm-agent.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.

FieldKindValues
CommandLinematch
  • -code
  • -id
  • -region
  • -register
Imageends_with
  • \amazon-ssm-agent.exe