Detection rules › Sigma

HackTool - SysmonEOP Execution

Severity
critical
Author
Florian Roth (Nextron Systems)
Source
upstream

Detects the execution of the PoC that can be used to exploit Sysmon CVE-2022-41120

MITRE ATT&CK coverage

TacticTechniques
Privilege EscalationT1068 Exploitation for Privilege Escalation

Event coverage

ProviderEvent IDTitle
Sysmon1Process creation

Stages and Predicates

Stage 1: 1 of selection_img

Image|endswith: '\SysmonEOP.exe'

Stage 2: 1 of selection_hash

or:
Hashes|contains: 'IMPHASH=22F4089EB8ABA31E1BB162C6D9BF72E5'
Hashes|contains: 'IMPHASH=5123FA4C4384D431CD0D893EEB49BBEC'

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
Hashesmatch
  • IMPHASH=22F4089EB8ABA31E1BB162C6D9BF72E5
  • IMPHASH=5123FA4C4384D431CD0D893EEB49BBEC
Imageends_with
  • \SysmonEOP.exe corpus 2 (sigma 2)