Change the Fax Dll
Detect possible persistence using Fax DLL load when service restart
Detection logic
selection
TargetObject|contains|all:
- \Software\Microsoft\Fax\Device Providers\
- \ImageNamefilter
Details: "%systemroot%\\system32\\fxst30.dll"Condition
selection and not filterRaw YAML
title: Change the Fax Dll
id: 9e3357ba-09d4-4fbd-a7c5-ad6386314513
status: test
description: Detect possible persistence using Fax DLL load when service restart
references:
- https://twitter.com/dottor_morte/status/1544652325570191361
- https://raw.githubusercontent.com/RiccardoAncarani/talks/master/F-Secure/unorthodox-lateral-movement.pdf
author: frack113
date: 2022-07-17
modified: 2022-12-30
tags:
- attack.persistence
- attack.defense-impairment
- attack.t1112
logsource:
product: windows
category: registry_set
detection:
selection:
TargetObject|contains|all:
- '\Software\Microsoft\Fax\Device Providers\'
- '\ImageName'
filter:
Details: '%systemroot%\system32\fxst30.dll' # Windows 10
condition: selection and not filter
falsepositives:
- Unknown
level: highFalse positives
- Unknown