Tweets are personal

Joined January 2011
12 Photos and videos
Dimitrios Margaritis retweeted
I recommend reading this thread as it gives some great insight and stories into incidents. #DFIR Also, the current top comment on there is freaking incredible! reddit.com/r/sysadmin/commen…
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Implementing ASR rules using Defender telemetry is not so difficult as it was in the past. But it takes time... Interesting article blog.palantir.com/microsoft-…
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Lately a third mode Warn was added which useful while moving from audit to block
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Dimitrios Margaritis retweeted
13 Sep 2022
Tiered Administration is among the strongest security controls that exist. But the vast majority of organizations do not use it. Here is how you can get started using Tiered Administration TODAY in your #Azure environments: 🧵
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Dimitrios Margaritis retweeted
3 Aug 2022
Today I'm happy to announce my newest and most ambitious project - the Azure Threat Research Matrix (ATRM). A similar look to MITRE ATT&CK Enterprise, but the ATRM will cover AzureAD and Azure resource TTPs. Official blog post: techcommunity.microsoft.com/… (1/2)

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Dimitrios Margaritis retweeted
Investigated the tool and its detections during our previous colaborative research months back. As it seems it is actively exploited for malicious purposes by high profile actors as well. Very nice outline by the @Unit42_Intel team ;). unit42.paloaltonetworks.com/…
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I suppose that blocking ISO in Windows helps malicious.link/post/2022/blo… Delivery of .lnk in similar archives like rar, zip is very old technique. EDRs should alert if not block such behavior.Does #MicrosoftDefender /MicrosoftSentinel Prevent/Detect this? @MSFTSecurity @MsftSecIntel
3 Jul 2022
Fake invoice delivering #icedid via #iso as an attachment Sample > tria.ge/220630-yahtesbhc5/be… @malwrhunterteam @TheDFIRReport @vxunderground @CuratedIntel trying out new infection flow
Dimitrios Margaritis retweeted
91 DaysToGo – If you use an MDM/MAM solution, use it to deploy new profiles. Here’s how to use Intune to set the auth mechanism for iPhone and iPad. If you don’t have an MDM, simply remove and re-add the account from the device and it should automatically switch to Modern Auth.
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Why Zero Trust architecture will disrupt the cybersecurity industry, the same way Netflix disrupted Blockbuster itwire.com/guest-articles/gu… Each organization needs to find its own way to 0trust and certainly there is NO a magic product to buy and forget the cybersecurity issues

MUST for Azure MFA: 1) For user awareness edit the the company branding page to write an awareness message 2)use number matching in multifactor authentication (MFA) notifications docs.microsoft.com/en-us/azu…
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More information security for EU Institutions and Agencies ec.europa.eu/info/about-euro…

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Dimitrios Margaritis retweeted
22 Mar 2022
Today, the @EU_Commission made a proposal for a Regulation on cybersecurity at the EU institutions, bodies and agencies. The objectives: 1) Increase the level of cybersecurity at these organisations; 2) Reinforce the mandate and funding of @CERTEU 💻🔐🤝 ec.europa.eu/info/publicatio…

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Dimitrios Margaritis retweeted
So, anybody care to share their favorite resources on #SOC metrics? I am doing a post related to this and wanted to drop a list of everybody's fave links on measuring SOC performance (yes, including mine too) #request
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Defender ATP for endpoint generates many false positives for Powemotet infections
Dimitrios Margaritis retweeted
PetitPotam is another example of the world outside processes, powershell, dlls. Almost 5yrs have been recommending to monitor ADCS logs, specifically Channel: Security EventID: 4887. Detections like this aren’t as clear cut, but just as useful & cover entire other attack paths.
25 Mar 2017
Windows Event Logs Zero 2 Hero: find bad; powershell, wmi, AD backdoors more youtu.be/H3t_kHQG1Js?t=1m39s
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Dimitrios Margaritis retweeted
5 months ago @tifkin_ and I started looking into the security of Active Directory Certificate Services. Today we're releasing the results of that research- a blog post posts.specterops.io/certifie… a 140-page whitepaper and defensive audit tool (links at the top of the post) [1/6]
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