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Greg Lesnewich

@greg-l.bsky.social
575 followers 367 following 1.5K posts

oh great, now I’m on bluesky

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Reposted by Greg Lesnewich
Saher @saffronsec.bsky.social · 24/09/2026
Excited to publish my first @bindinghook.bsky.social piece on challenging assumptions of how Iranian cyber ops function in wartime & the discrepancy between capability/intent signals from peacetime. What does the evidence say on how cyber/kinetic interact in conflict? bindinghook.com/what-does-th...
bindinghook.com
What does the Iran war tell us about the relationship between cyber and kinetic conflict?
The predicted wave of Iranian cyber retaliation never came
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Reposted by Greg Lesnewich
Magnum, T.I.(M.) @hydrationchimp.bsky.social · 18/09/2026
it’s time to give Ms Rachel a gundam
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Greg Lesnewich @greg-l.bsky.social · 15/09/2026
Imagine seeing this spread and thinking “nah, I’m all set”
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Reposted by Greg Lesnewich
ESET Research @esetresearch.bsky.social · 01/09/2026
#ESETresearch hunted for additional context and found that we detected this backdoor between 2020-11 and 2023-11, targeting financial services sector in the Netherlands and Kazakhstan. 1/6 x.com/genthreatlab...
x.com
Gen Threat Labs (@GenThreatLabs) on X
A WMI subscription named "Realtek" started a 12 KB backdoor at 19:50, and it never exited. It read its C2 domain by counting spaces in a fake desktop.ini, then called a domain its operator stopped paying for in July 2021. It kept trying for 11 months. Read more -> https://t.co/z7SSDdpWAq
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Greg Lesnewich @greg-l.bsky.social · 29/07/2026
It was truly a wild ride to find this the day before such a big release. And the effort to get it out to the world in less than a week was astonishing Good shit @saffronsec.bsky.social @mkyo.bsky.social @konstantinklinger.bsky.social @nickattfield.bsky.social TREE FOREVER
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Greg Lesnewich @greg-l.bsky.social · 29/07/2026
So remember last week when we said we hadn’t see TA488/Laundry Bear/Void since Feb? Well... We kinda lied Day before the release, we found em throwing a half click against Outlook to install one of the coolest implants we’ve ever examined: OWAReaper www.proofpoint.com/us/blog/thre...
proofpoint.com
Cleaning Out Inboxes: TA488 Comes for Outlook with Another Half-Click Exploit | Proofpoint US
Threat Research would like to thank the Proofpoint Cloudmark Authority team for their collaboration. Key Findings On 22 July 2026, one day prior to Proofpoint’s recent joint release
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Saher @saffronsec.bsky.social · 23/07/2026
Most exciting @threatinsight.proofpoint.com drop yet - in collaboration with NSA - and the product of @greg-l.bsky.social's blood, sweat, and tears. Research into two Russian actors throwing half-click exploits against mailservers. Part 1 on TA488 / Void Blizzard www.proofpoint.com/us/blog/thre...
proofpoint.com
TA488 Targets Zimbra Mailservers with Half-Click Exploits | Proofpoint US
Proofpoint is releasing this report in coordination with NSA and FBI’s JSAC reporting about TA488/Void Blizzard, which can be found here. This is part 1 of a 2-part blog series Proofpoint is
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🎃 🧙🏻‍♀️Yell 👻 Growler💀🎃 @yaelwrites.com · 04/05/2026
I am honored to share the 2026 Pulitzer Prize for Best International Reporting with Dake Kang, Byron Tau, Aniruddha Ghosal and Garance Burke for our reporting revealing how Silicon Valley largely designed and built China's surveillance state and enabled human rights abuses.
The 2026 Pulitzer Prize Announcement
International Reporting
Winner: Dake Kang, Garance Burke, Byron Tau, Aniruddha Ghosal of the Associated Press and Yael Grauer, contributor.

US government allowed and even helped US firms sell tech used for surveillance in China, AP finds.
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Reposted by Greg Lesnewich
Star Wars Holocron @swholocron.bsky.social · 01/05/2026
On this day 35 years ago, HEIR TO THE EMPIRE was released
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Carson @neohazard.bsky.social · 16/05/2025
Dodgers broadcast was discussing the science behind the perception of time between children and adults. After hearing the explanation, the color commentator pauses and asks, "Am I gonna feel any better?" Andy Pages then smashes a dinger into space, thus ending the existential crisis on commentary.
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Reposted by Greg Lesnewich
Wesley Shields @wxs.bsky.social · 23/04/2026
So @xorhex.bsky.social asked (in our YARA keybase chat) how one might only iterate through the last 10 matches of a string in YARA. I took a shot at answering it by logging the last 10 locations of a match in descending order: for all i in (0..10): (console.log(@a[#a - i]))
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Vitaly Kamluk @vkamluk.bsky.social · 24/04/2026
After 11 years of silence at Black Hat, I am delivering a speech today. In memory of a legendary APT Hunter, Mr Sergey Mineev, who passed away 40 days ago. If you cannot attend, here is the write-up: www.sentinelone.com/labs/fast16-...
sentinelone.com
fast16 | Mystery ShadowBrokers Reference Reveals High-Precision Software Sabotage 5 Years Before Stuxnet
A previously unknown 2005 cyber sabotage framework patches high-precision calculation software in memory to silently corrupt results.
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Reposted by Greg Lesnewich
Vitaly Kamluk @vkamluk.bsky.social · 23/04/2026
After 11 years, I'm returning to the Black Hat stage. The last time, in 2015, I gave a joint talk with INTERPOL - their first-ever appearance at Black Hat. If you're around, come support me tomorrow - I promise the talk goes well beyond what you'll find in the abstract.
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Greg Lesnewich @greg-l.bsky.social · 18/04/2026
PEMDAS, but for the correct order to eat fruit snacks
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Greg Lesnewich @greg-l.bsky.social · 11/04/2026
Easter dinner was a movie (a delicious Dune knock off)
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Reposted by Greg Lesnewich
🇺🇦 Xorhex 🇺🇦 @xorhex.bsky.social · 09/04/2026
#binjaextras has been updated to allow for type information to be applied to both struct members and global variables. Local instance of OALab's hashdb has been added as well - see setup info here: github.com/xorhex/binja... Install/update binjaextras via the plugin manager! #BinaryNinja
github.com
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Andy Gill @zephrfish.yxz.red · 04/04/2026
This is what happens when I take time off, I actually write silly length blog posts and deep dive things blog.zsec.uk/bullyingllms/ the post dives into a MCP pipeline I've put together for autonomous 0day hunts.
blog.zsec.uk
Autonomous Vulnerability Hunting with MCP
Alt title: Bullying LLMs into submission to find 0days at scale
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Reposted by Greg Lesnewich
Pasquale Stirparo 🇺🇦 🇪🇺 @pstirparo.bsky.social · 31/03/2026
RationalEdge #REDS new release: Maliciousness #Score, #AI Assisted Full Sample Analysis, and a new #Behaviour Panel. rationaledge.io/blog/malicio... @rationaledge.bsky.social #ThreatResearch #ThreatIntel #CTI #Malware #MalwareAnalysis #ReverseEngineering 1/4
rationaledge.io
Maliciousness Scoring, AI Sample Analysis, and a New Behaviour Panel | RationalEdge - Know Why
REDS ships maliciousness risk scoring powered by Malcontent, a dedicated behaviour panel, and AI-assisted full sample analysis with built-in analyst feedback.
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ThreatInsight @threatinsight.proofpoint.com · 27/03/2026
Proofpoint has directly observed a targeted email campaign that delivers DarkSword RCE, and we attribute the messages to Russian FSB threat actor TA446 with high confidence. 🧵
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Solomon @solomonrmissouri.com · 14/03/2026
I’m not interested in skinny propaganda in any form I was on board when Oprah was built up like a Baltimore row house
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Solomon @solomonrmissouri.com · 14/03/2026
Them Europeans cannot be your standard for beauty… they almost died because they wouldn’t wash their hands
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Greg Lesnewich @greg-l.bsky.social · 14/03/2026
We’re now weeks away from china ingratiating themselves enough to get an announcement like: “It’s a new day - China is gonna come here and build all of our roads and infrastructure for us. It’s a great deal, I only make great deals”
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Greg Lesnewich @greg-l.bsky.social · 11/03/2026
Thanks fam!!! Pretty excited for this one 🤓
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Greg Lesnewich @greg-l.bsky.social · 11/03/2026
Wdym he’s got 77 points?????
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Greg Lesnewich @greg-l.bsky.social · 11/03/2026
Bam Adebayo is doing WHAT right now???
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Greg Lesnewich @greg-l.bsky.social · 11/03/2026
congrats G!
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Reposted by Greg Lesnewich
PIVOTcon @pivotcon.bsky.social · 10/03/2026
📣 #PIVOTcon26 Agenda is here 🤟 We are thrilled to announce the lineup for this year's edition! 2⃣ days and 19 talks from leading #ThreatResearch experts. The agenda link is in the first comment👇, and the talks and speakers are in the thread.🧵 #CTI #ThreatIntel 1/15
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Greg Lesnewich @greg-l.bsky.social · 08/03/2026
media.tenor.com
a man with a beard is talking into an imdb microphone and says i think we 're screwed
ALT: a man with a beard is talking into an imdb microphone and says i think we 're screwed
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Greg Lesnewich @greg-l.bsky.social · 08/03/2026
Don’t yuck my yum
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Greg Lesnewich @greg-l.bsky.social · 07/03/2026
Can someone smarter than me tell me if the cyber strategy for america from the regime means anything for me personally?
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Greg Lesnewich @greg-l.bsky.social · 04/03/2026
nearly sued the previous owners of our last residence over this exact thing
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Reposted by Greg Lesnewich
Solomon @solomonrmissouri.com · 04/03/2026
Christopher Kempczinski bit into that burger like it was the first time he'd every tasted a McDonalds burger AND... This is actually a case study on how American companies no longer promote within
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Greg Lesnewich @greg-l.bsky.social · 02/03/2026
They don't see grandpa, until they look over at the crowd of kids getting their NASCAR gear signed by “Big Al” kids didn’t know the old dude in the fishing hat WASN’T a team owner, so grandpa took his chance to be hilarious and sign like 6 autographs as Big Al, and BS’d about how the race went
media.tenor.com
Niplodram Fame GIF
ALT: Niplodram Fame GIF
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Greg Lesnewich @greg-l.bsky.social · 02/03/2026
Fast forward to them deciding to leave Story goes that my uncle lost track of grandpa towards the gated exit to the parking lots They wander to the exit where a bunch of kids are waiting on the other side of the fence hawking autographs …
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Greg Lesnewich @greg-l.bsky.social · 02/03/2026
So one race he brings along my grandpa and my old man. Happenstance, one of the cars they sponsored, Tony Stewart, wins! So the three of them, having no business being there, end up in the winners circle There’s a ton of people there - they get a free beer but don’t meet anyone fr
media.tenor.com
a race car with the number 20 on the front
ALT: a race car with the number 20 on the front
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Greg Lesnewich @greg-l.bsky.social · 02/03/2026
Since things are #rough out here right now, I figured I’d share a fun story Back in the early 00’s, my uncle worked at some manufacturer that sponsored a bunch of NASCAR cars and would regularly get tickets to the events
media.tenor.com
a race car is driving down a track with spike written on the bottom of the screen
ALT: a race car is driving down a track with spike written on the bottom of the screen
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Greg Lesnewich @greg-l.bsky.social · 02/03/2026
Anthropic just got a life time subscriber based off this one screen wow
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Greg Lesnewich @greg-l.bsky.social · 02/03/2026
i personally loved the one where he subtweeted Anthropic and said they were committing treason
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Greg Lesnewich @greg-l.bsky.social · 09/02/2026
Staying off socials to keep my mentals in order but had to come in here to say that I’m certain Bad Bunny had more yards from scrimmage than the Pats in that first half
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ESET Research @esetresearch.bsky.social · 23/01/2026
#BREAKING #ESETresearch identified the wiper #DynoWiper used in an attempted disruptive cyberattack against the Polish energy sector on Dec 29, 2025. At this point, no successful disruption is known, but the malware’s design clearly indicates destructive intent. 1/5
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Solomon @solomonrmissouri.com · 22/01/2026
You fear innovation
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Kim Zetter @kimzetter.bsky.social · 22/01/2026
"A superpower is choosing to self-immolate and torch its remaining global trust and friendships, including and especially NATO...at the precise moment when it had been reinvigorated and renewed...in the wake of Russia’s large-scale invasion of Ukraine in 2022" - by @vermontgmg.bsky.social
wired.com
We Are Witnessing the Self-Immolation of a Superpower
With Donald Trump’s actions in Greenland, Minneapolis, and Venezuela, a foreign enemy could not invent a better chain of events to wreck the standing of the United States.
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Aaron Sojourner @aaronsojourner.org · 16/01/2026
They have quite an operation going. www.mprnews.org/episode/2026...
mprnews.org
Minneapolis church has delivered more than 12,000 boxes of groceries to families in hiding
DHH church has hundreds of volunteers packing and delivering groceries to families who have been too scared to leave their homes during the immigration operation.
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Greg Lesnewich @greg-l.bsky.social · 16/01/2026
Appreciate the tip! Will see if it takes down the champ!
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Greg Lesnewich @greg-l.bsky.social · 16/01/2026
We have not! Worth giving a go?
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Greg Lesnewich @greg-l.bsky.social · 16/01/2026
I don’t think we’ve collectively paid enough attention to the fact that Annie’s is now the regent of boxed Mac and cheese Kraft got their chain snatched and now it just tastes like dog water compared to Annie’s
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Greg Lesnewich @greg-l.bsky.social · 15/01/2026
I for one am excited for the Hoth Takes episode on this one to help me digest this news
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Squiblydoo @squiblydoo.bsky.social · 14/01/2026
#100daysofYARA - day 12 VirusTotal uses CAPE sandbox to identify many malware families and determine if they can extract the malware's configuration. Since they use CAPE, we can often see their logic. Today, we'll suggest edits to a rule for AgentTesla. Rule at end. 1/10
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Greg Lesnewich @greg-l.bsky.social · 13/01/2026
words don't mean anything anymore
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Nick from Weymouth 🇺🇦🇺🇸 @nicastronaut.bsky.social · 13/01/2026
Imagine publishing a blog on "Lazarus" in the year of our lord 2026
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