7 Minute Security16 Des 2022

7MS #551: Interview with Matt Warner of Blumira

Today we welcome our pal Matthew Warner (CTO and co-founder of Blumira) back to the show for a third time (his first appearance was #507 and second was #529).

I complained to Matt about how so many SIEM/SOC solutions don't catch early warning signs of evil things lurking in customer networks. Specifically, I whined about 7 specific, oft-missed attacks like port scanning, Kerberoasting, ASREPRoasting, password spraying and more. (Shameless self-promotion opportunity: I will be discussing these attacks on an upcoming livestream on December 29).

Matt dives into each of these attacks and shares some fantastic insights into what they look like from a defensive perspective, and also offers practical strategies and tools for detecting them!

Note: during the discussion, Matt points out a lot of important Active Directory groups to keep an eye on from a membership point of view. Those groups include:

ASAAdmins
Account Operators
Administrators
Administrators
Backup Operators
Cert Publishers
Certificate Service DCOM
DHCP Administrators
Debugger Users
DnsAdmins
Domain Admins
Enterprise Admins
Enterprise Admins
Event Log Readers
ExchangeAdmins
Group Policy Creator Owners
Hyper-V Administrators
IIS_IUSRS
IT Compliance and Security Admins
Incoming Forest Trust Builders
MacAdmins
Network Configuration Operators
Schema Admins
Server Operators
ServerAdmins
SourceFireAdmins
WinRMRemoteWMIUsers
WorkstationAdmins
vCenterAdmins

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