Potential Rcdll.DLL Sideloading

Title: Potential Rcdll.DLL Sideloading
Status: test
Description:Detects potential DLL sideloading of rcdll.dll
References:
  -https://www.trendmicro.com/en_us/research/23/c/iron-tiger-sysupdate-adds-linux-targeting.html
Author: X__Junior (Nextron Systems)
Date: 2023-03-13
modified:2023-03-15
Tags:

• -'attack.persistence'
• -'attack.privilege-escalation'
• -'attack.execution'
• -'attack.stealth'
• -'attack.t1574.001'

Logsource:

• category: image_load
• product: windows

Detection:
  selection:
    ImageLoaded|endswith: '\rcdll.dll'
  filter:
    ImageLoaded|startswith:
      -'C:\Program Files (x86)\Microsoft Visual Studio\'
      -'C:\Program Files (x86)\Windows Kits\'

  condition:selection and not filter
Falsepositives:
  -Unknown
Level: high