Threat Hunting - DFIR - Detection Engineering

Joined February 2023
I aggregated public blockchain RPC endpoints and IPFS gateways, categorized by severity level for detection and proxy blocklisting: github.com/mthcht/awesome-li… Let me know if you think anything should be added or adjusted.
1
1
7
246
New blog: I’m in your logs now: deceiving analysts and blinding EDRs Based on my BlackHat talk from last year, so you don't have to listen to my voice ;) Some exploration into ETW spoofing and buffer pool exhaustion. medium.com/falconforce/im-in… #FalconForce #ETW #EDR #Evasion
3
74
4
259
16,438
mthcht retweeted
How much visibility does your EDR really have when persistence and C2 live inside Chromium? New research from @SpecterOps explores Chromium extensions as a C2 + persistence mechanism, turning the browser itself into an interesting red vs blue battleground. Red teamers will love this. Detection engineers should read it twice. specterops.io/blog/2026/08/1… #RedTeam #DetectionEngineering #EDR
7
91
2
389
23,843
🚨 Update: Watching this npm worm propagate in real time, we’re now tracking 2,234 affected package artifacts across 444 unique packages, and it’s still spreading. Average detection time: 5 min and 18 seconds after publication. Our campaign page includes all packages/versions.
🚨 Active npm supply chain attack: keyv​@​6.0.0 and 13 other packages have been compromised. keyv alone gets 154M weekly downloads. The worm steals cloud and CI credentials, then uses stolen npm tokens to publish trojanized versions of more packages.
36
267
56
1,879
392,026
‼️🚨 This is really bad. According to our research, at least one of Brazil's government IT workers was infected with an infostealer. We found: - He was doing goverment infrastructure work on his home RGB gaming PC - He was running Windows 7 (EoL Jan 2020) - No antivirus - NO MFA for some critical infra - His browser held gov VPN creds for himself and two colleagues (they were using each others creds?) - Search history includes "ativar windows 10," "download office 2019 + ativador," "comprar office 365," and "download mobaxterm cracked" - Malware dropped via malicious game installer - The keys to his password managers were in the stolen browser: a LastPass account and a keypass[.]mdr[.]gov[.]br vault - Exposed: VPN, GitLab, Jenkins, webmail, SSO, M365, and dev/staging environments across mec[.]gov[.]br and mdr[.]gov[.]br
‼️🚨 A hacker breached Brazil's national emergency alert system, and woke up everyone by pushing a fake "Extreme Alert" reading "misantropi4" to phones across São Paulo, Rio, Brasília and other states, overriding silent mode in the middle of the night. Telecoms regulator Anatel pulled the national warning platform offline and the Federal Police are investigating what officials call a probable remote intrusion into Brazil's critical public-warning infrastructure.
78
430
87
3,170
275,300
Microsoft Graph Permissions list classified by severity and privileged impact to detect risky OAuth consents, over-privileged apps, consent phishing, apps with dangerous access, and enrich SIEM detections/app reviews. github.com/mthcht/awesome-li…
3
36
1
179
16,394
ServiceNow released KB3067321 Update regarding this. More details in the post: thecybersecguru.com/news/ser…
ServiceNow customers are being notified after unauthorized access hit multiple tenants. The messy part? A Scripted REST endpoint reportedly shipped with authentication disabled. No token. No valid session. No real user account. Just requests landing as “Guest” in logs. The IOC: 51.159.98.241 Security teams should be checking /api/now/related_list_edit transaction logs immediately.
1
17
2
58
14,119
mthcht retweeted
Hundreds of detection lists for threat hunting and SOC github.com/mthcht/awesome-li…
2
136
1
542
25,591
mthcht retweeted
An #adware campaign involving 50+ Chrome extensions (disguised as live wallpapers) has hit ~30K users. Spread across three publisher accounts, the attackers are pushing remote HTML to 40+ extensions and wiping IndexedDB on install and startup. Details at bit.ly/3Q05sWB
1
35
1
101
11,056
Google Chrome is rolling out device-bound session credentials to all users. Session cookies get cryptographically tied to your device, so stolen cookies can't be replayed from a different machine. Attackers who exfiltrate your cookie database get nothing usable.
103
307
83
3,996
511,481
🚨 Supply chain attack on the Laravel Lang organization: 700+ historical versions across multiple community-maintained Laravel Lang packages were compromised with an RCE backdoor, including: laravel-lang/lang laravel-lang/http-statuses laravel-lang/attributes Laravel-Lang/actions The payload targets cloud creds, CI/CD secrets, Kubernetes tokens, Vault, browser data, password managers, SSH keys, and more.
54
270
137
1,135
754,374
mthcht retweeted
🚨 The "𝙼𝚎𝚐𝚊𝚕𝚘𝚍𝚘𝚗" Campaign is live... 𝟻,𝟽𝟷𝟾 malicious commits to 𝟻,𝟻𝟼𝟷 GitHub repositories in a six-hour window. Using throwaway accounts and forged author identities (build-bot, auto-ci, ci-bot, pipeline-bot), the attacker injected 𝙶𝚒𝚝𝙷𝚞𝚋 𝙰𝚌𝚝𝚒𝚘𝚗𝚜 workflows containing 𝚋𝚊𝚜𝚎𝟼𝟺-𝚎𝚗𝚌𝚘𝚍𝚎𝚍 bash payloads that exfiltrate: - CI secrets, - cloud credentials - SSH keys - OIDC tokens - source code secrets Check your repo / Technical details: safedep.io/megalodon-mass-gi…
25
163
58
592
227,785
🚨 ACTIVE SUPPLY CHAIN ATTACK 🚨 The actions-cool/issues-helper GitHub Action is compromised. Every existing tag in the repo now points to an imposter commit that: ⬇️ Downloads the bun JS runtime 🧠 Reads Runner.Worker process memory to harvest CI/CD secrets in flight 📡 Exfiltrates credentials to t.m-kosche[.]com Any workflow referencing this action by version will pull the malicious code on its next run. If you use it: stop immediately, pin to a known-good commit SHA from before the compromise, and rotate any secrets exposed to recent runs. StepSecurity customers are already protected: 🛡 Real-time Threat Center alert with "Am I Affected?" links for every workflow and every runner that has talked to the IOC domain 🚫 Compromised Actions Policy blocks any run referencing this action before it executes 🌐 Harden-Runner Global Block List now blocks t.m-kosche[.]com automatically, even in audit mode, no config change required 🔍 Imposter Commit detection flags the exact signature of this attack Full advisory and IOCs: stepsecurity.io/blog/actions…
2
26
4
88
12,258
We’re continuing to work with Microsoft and GitHub to investigate the impact of the malicious Nx Console version 18.95.0. I'll share any updates on X (@jeffbcross and @NxDevTools) as well as in our security advisory: github.com/nrwl/nx-console/s…. Initially, Microsoft indicated to us that there were 28 installs of the malicious version 18.95.0. Based on our own analytics for the compromised version, we currently believe the number of users who received the malicious package may be significantly higher; potentially over 6k installs. We’ll keep working to determine the actual impact and exposure, and I don’t want to speculate beyond the facts we have right now. But I also don’t want to minimize the situation. This is my top priority right now. Our team has been, and continues to be focused on understanding exactly what happened, helping affected users, hardening our systems and release processes, and being as transparent as possible throughout the investigation.
16
113
20
483
261,240
The malicious vscode extension could be one of these extensions recently removed from the store DevCrew.devc-python-toolkit🤔? not shared yet by microsoft, check vsxsentry.github.io/ and use marketplace.visualstudio.com… to automatically block and uninstall these
1/ We are sharing additional details regarding our investigation into unauthorized access to GitHub's internal repositories. Yesterday we detected and contained a compromise of an employee device involving a poisoned VS Code extension. We removed the malicious extension version, isolated the endpoint, and began incident response immediately.
1
21
2
71
20,462
mthcht retweeted
💠VSXSentry💠 vsxsentry.github.io VS Code Extensions threat intel feeds for multiple platforms, VSIX analyzer, scripts & policy generator, remediation and forensic traces guide
18
2
60
6,542
mthcht retweeted
1/ We are sharing additional details regarding our investigation into unauthorized access to GitHub's internal repositories. Yesterday we detected and contained a compromise of an employee device involving a poisoned VS Code extension. We removed the malicious extension version, isolated the endpoint, and began incident response immediately.
559
3,526
1,294
11,317
7,542,282
CISA Admin Leaked AWS GovCloud Keys on Github krebsonsecurity.com/2026/05/…
5
58
6
241
24,809