File Download From IP Based URL Via CertOC.EXE

Title: File Download From IP Based URL Via CertOC.EXE
Status: test
Description:Detects when a user downloads a file from an IP based URL using CertOC.exe
References:
  -https://lolbas-project.github.io/lolbas/Binaries/Certoc/
Author: Nasreddine Bencherchali (Nextron Systems)
Date: 2023-10-18
modified:None
Tags:

• -'attack.command-and-control'
• -'attack.execution'
• -'attack.t1105'

Logsource:

• category: process_creation
• product: windows

Detection:
  selection_img:
Image|endswith:'\certoc.exe' OriginalFileName:'CertOC.exe'   selection_ip:
    CommandLine|re: '://[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}'
  selection_cli:
    CommandLine|contains: '-GetCACAPS'
  condition:all of selection*
Falsepositives:
  -Unknown
Level: high