Threat hunting, automations, tooling | Mandiant Managed Defense | Operationalizing intelligence | Structural engineer turned APT ejector

Joined April 2021
I'm a lurker 99% of the time, but find me over at Bluesky, same username tommysec! ✌️
45
Tommy Dacanay retweeted
Curious how threat actors use digital analytics and advertising tools to increase the effectiveness and duration of their campaigns? Check out our latest, trade-craft focused blog where we mint the sizzlin' new term: malnalytics! 🔥🔥 cloud.google.com/blog/topics… #malvertising
3
8
16
1,983
Tommy Dacanay retweeted
MITRE Kalikimaka, everyone! Just in time for the holidays, here's a yule blog covering UNC2975 malvertising activity that led to DANABOT and DARKGATE malware. (1/7) mandiant.com/resources/blog/… @rufusmbrown @_gackerman_
1
18
2
48
17,877
New Haven pizza pilgrimage, stop No. 1: Modern Apizza. Great flavor, a little on the greasy side. Sprinkling parmesan helped. Nice amount of char, my fingertips were happily char-coated.
1
2
612
Based on this trip, New Haven Pepes is a little better than Alexandria Pepes. Either way, I'm proud to be a Frank Pepes member. I told the waitress that and I'm pretty sure she was impressed.
1
154
Stop No. 3: Sally's. Great way to end the pilgrimage. Delicious crust, and the pepperoni had some excellent #CuppingAction going on. My craving is satisfied..... For now 🍕🍕🍕🍕🍕🍕🍕🍕🍕
99
Tommy Dacanay retweeted
Just announced in preview: Mandiant Hunt for Chronicle Security Operations! This new service is tailored to organizations with existing security programs who want a threat hunting capability to discover new threats that may be missed by product detection. cloud.google.com/blog/produc…
17
3
43
8,408
Tommy Dacanay retweeted
Happy to provide Managed Defense contributions with @tommysec to the Campaigns section of M-Trends. Lots of APT-over-USB this past year.
🚨 @Mandiant’s M-Trends is here!! 🚨 Stories include 👀 1️⃣ Mandiant’s insights on attacker operations from the frontlines 2️⃣ Ukraine holds the line against 🇷🇺’s cyber operations 3️⃣ Uncommon techniques, successful hacks 4️⃣ DRPK getting 🔐coin 5️⃣ Red Team vs the ☁️ 6️⃣ 🎓 APT 42
2
10
832
🚨 @Mandiant’s M-Trends is here!! 🚨 Stories include 👀 1️⃣ Mandiant’s insights on attacker operations from the frontlines 2️⃣ Ukraine holds the line against 🇷🇺’s cyber operations 3️⃣ Uncommon techniques, successful hacks 4️⃣ DRPK getting 🔐coin 5️⃣ Red Team vs the ☁️ 6️⃣ 🎓 APT 42
2
28
2
80
18,083
🔥Read read read!🔥 It's fascinating to be able to compare & contrast three incidents from the same threat actor (plus handoff - or not! - to another). Incredible work here by the team, especially the blog authors! 🔥🔥🔥🔥🔥
We assembled a team of Avengers to bring this comic book superhero themed blog into existence. It's action packed with detection opps and intrusion timeline data for a prolific initial access broker: UNC961. @rufusmbrown @Sa1jak @tommysec Josh, Fotios mandiant.com/resources/blog/…
9
535
I really resonate with this. Writing a thesis for my structural engineering degree, plus countless reports in my former field helped hone my technical writing. Being able to write well is critically important, and to do so, one needs to take criticism well.
Nothing better prepared me for writing high-quality deliverables in cybersecurity than the academic writing critiques I received during my non-STEM masters program. It was never just critiques of my work, they came for my ideas/intellect/personality/drive/ability/SOUL. Brutal.
1
2
325
If writing is a primary (or THE primary) way you communicate in your field, it directly impacts your effectiveness. Doesn't matter if it's STEM or not, as @techieStef indicated
1
1
72
I haven't worked in non-STEM, I can only base thoughts from my experiences in technical fields - but I feel technical writing skill development is under-emphasized in the workplace.
1
44
Tommy Dacanay retweeted
Nothing better prepared me for writing high-quality deliverables in cybersecurity than the academic writing critiques I received during my non-STEM masters program. It was never just critiques of my work, they came for my ideas/intellect/personality/drive/ability/SOUL. Brutal.
Replying to @sherrod_im
Fine arts critique is the most brutal scholastic exercise you will ever undergo. STEM could try it but the drop out rate would skyrocket.
1
1
1
7
1,964
This multi-filter approach (or "signatures on top of signatures") is a key piece of how we're able to perform these automations. It lets us ingest hits on broad detections and perform response actions on the subset that is known-evil.
Replying to @DetectorRector
1⃣ We write detection content based on undetected events identified during response investigations. #Filter1 2⃣ We DONT configure all conditions in the rule for containment. We apply a second filter that allows us to apply our threat intelligence to the alert generated. #Filter2
4
337