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Christopher Glyer Profile picture
@cglyer
Dec 1, 2017 • 9 tweets • 2 min read • Read on X
Reading justice.gov/opa/pr/russian… today reminded me how I got my start in #DFIR in 2008 investigating FIN1. Let's take a walk down memory lane.
FIN1 (in my experience) has had a few major periods of activity (2007-2009, 2011-2012, and 2014-2015) - each with their own distinct set of TTPs. They've significantly improved their capabilities over the years (even though multiple members have been arrested)

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More from @cglyer

Christopher Glyer Profile picture
Oct 3, 2018
"You've Got Mail"

@danielcabaniel @CyberAmyntas discussing email phishing and mail server attack trends

#FireEyeSummit
APT34 compromised a trusted partner org - and used that to abuse trust (convinced user to enable macros) and successfully phish victim

Subsequently staged data theft files on the Exchange server as .png files and downloaded from the server.

#FireEyeSummit
C-level credential phished while on vacation - APT34 used account access to phish entire company. Even though infosec team blocked URL on web proxy - employees switched to guest wi-fi to access the URL.

#FireEyeSummit
Read 10 tweets
Christopher Glyer Profile picture
Oct 3, 2018
First up Matias and Adrian discussing investigating the threat actor that MSFT calls Platinum

...and right out of the gate the threat actor steals your EDR agent installer 😮 #SignsThisProbablyIsntAScriptKiddie

#FireEyeSummit
It's not often that you see ACI Shims used for persistence

#FireEyeSummit
How do you hunt for ACI Shim persistence? Multiple different techniques - but the Windows Program-Telemetry logs are a great place to look

#FireEyeSummit
Read 5 tweets
Christopher Glyer Profile picture
Jul 18, 2018
Remediation strategy in #DFIR is always a fun topic - with many opinions & not always a clear rule book to follow. It's like the English language for every rule there are 5 exceptions. My views have evolved over time - from combo of experience & as monitoring tools have improved
If you catch attacker early in attack lifecycle - this one is pretty easy. Take action immediately before they get a strong foothold. Very few exceptions to this rule. Tipoffs you are early in attack lifecycle. Malware owned by primary user of system or malware in startup folder
Opposite end of spectrum - if attacker has been there for months/years - it will take at the very (and I mean very) least a few days to get bare minimum handle on infected systems & how accessing the environment. Bigger challenge is client ability to take "big" remediation steps
Read 8 tweets
Christopher Glyer Profile picture
Jul 18, 2018
I've been thinking about the recent conspiracy theory of "where is the physical DNC server".



Here is a thread on the "missing" DNC server and my experience/advice from conducting similar investigations.
First, some background for my comments. Over the last decade, I've personally led investigations at over 100 organizations & taught dozens of classes for both federal law enforcement and the private sector on incident response and digital forensics.
I've never once physically acquired a server or asked someone to physically acquire a server. Literally the first thing you learn in digital forensics is how to take a forensic image (or in laymen's terms a complete copy of a computer).
Read 18 tweets

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