ACIDDAMAGE runs as low-privileged user

[bananabr]

I tried replicating the attack but my DLL is loaded as the user running cp_client and not as SYSTEM. Any ideas?

[joshuanutt]

@bananabr Did you ever sort it out? I'm having the same issue.

[jbaines-r7]

Obviously, I'd need more information to troubleshoot this. Windows version, driver version, etc.

[joshuanutt]

I have access to some older versions of Windows at home and will test those when I get off work.

Info from the client PC:

Driver

This is the driver that was installed when connecting to the malicious printer.

From Get-PrinterDriver:

Name	Value
Name	Lexmark Universal v2
MajorVersion	3
DriverVersion	562992903094277

From lmud1040.GDL

<GDL_ATTRIBUTE Name="*GPDFileVersion" xsi:type="GDLW_string">2.10.0.5</GDL_ATTRIBUTE>
<GDL_ATTRIBUTE Name="*GPDSpecVersion" xsi:type="GDLW_string">1.0</GDL_ATTRIBUTE>

Device Info

Name	Value
WindowsProductName	Windows 10 Pro
WindowsEditionID	Professional
WindowsVersion	2009
OSBuildNumber	19044
OSArchitecture	64-bit

Hotfixes: KB5015730 KB5003791 KB5012170 KB5016616 KB5014671 KB5015895 KB5005699