Digital Paleontologist, digging deeper
Joined September 2009
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It was awesome to be at the @AusCERT conference this year - What an amazing event and I learned so much! See you all next year!
At @AusCERT conference we presented "Sigma and Detection Engineering with @velocidex Velociraptor". Learn how to implement real time Sigma detection with forensic enhancements.
Full presentation youtube.com/watch?v=3EBrpFng… and slides docs.velociraptor.app/presen…
Mike Cohen retweeted
At @AusCERT conference we presented "Sigma and Detection Engineering with @velocidex Velociraptor". Learn how to implement real time Sigma detection with forensic enhancements.
Full presentation youtube.com/watch?v=3EBrpFng… and slides docs.velociraptor.app/presen…
Mike Cohen retweeted
Looking forward to speaking on a panel at the @rapid7 Take Command Summit.
Register for free below as we talk about between pen testing, red teaming and the benefits of running regular security exercises.
rapid7.brighttalk.com/?utm_s…
Mike Cohen retweeted
Velociraptor release 0.73 is now available for testing! Read about all the cool new features here docs.velociraptor.app/blog/2… .
An exciting new feature is built in timelining capability. Check the blog post here docs.velociraptor.app/blog/2…
We just re-published a cool blog post, on the Velociraptor Blog, by Chris Hayes from @RelianceCyber . The post illustrates the process of setting up Velociraptor using external certificates.
docs.velociraptor.app/blog/2…
Original post reliancecyber.com/secure-vel…
Mike Cohen retweeted
Great example of VQL automation!
For any velociraptor users - I have been messing around with plyara over the last week and created a few bulk yara artifacts using Yara-Forge - yarahq.github.io/.
Velociraptor artifacts:
File - github.com/mgreen27/DetectRa…
Process
github.com/mgreen27/DetectRa…
github.com/mgreen27/DetectRa…
github.com/mgreen27/DetectRa…
Webshell - github.com/mgreen27/DetectRa…
My automation takes Yara-Forge full ruleset, then seperates rules into buckets to optimise deployment. Updated each week to keep the rules up to date.
#dfir @velocidex
Mike Cohen retweeted
The incident started with a compromised server. When we extended the hunting to the entire network, we found traces of the "WayBack" campaign on a computer, which @yoroisecurity documented almost exactly three years ago [1].
We also found the exact same code as in the blog on the corresponding client in the customer's network. For three years, this and other code could have gone unnoticed in the network.
Another reason for regular compromise assessments and hunting in the internal network.
[1] yoroi.company/en/research/th…
I was so excited about the new 0.72 release of Velociraptor I just could not wait to make a quick video to show you all the new features!
#velociraptor #dfir #digitalforensics
Check it out here
youtube.com/watch?v=FwmFYmTQ…
Mike Cohen retweeted
Version 0.7.2 of @velocidex is now fully available for download! Learn what's new 👉 r-7.co/3WliUVJ
Only a few days left to secure your early bird for our Velociraptor training in Singapore. This is a rare opportunity to learn about Velociraptor and how to deploy it effectively, develop VQL artifacts and actively hunt for adversaries.
blackhat.com/asia-24/trainin…
Mike Cohen retweeted
#100daysofyara targeting QuasarRAT via namespace strings observed in process memory and decompiled code. #R7Labs
@velocidex Windows.Detection.Yara.Process only returns one hit per process here as I added some groupings to minimise any FPs
github.com/rapid7/Rapid7-Lab…
Mike Cohen retweeted
Another #100daysofyara post - #R7Labs
Source a couple of samples:
bazaar.abuse.ch/browse/tag/S…
Running @velocidex Windows.Detection.Yara.Process in should detect on a running final payloads. I have focused on simple network connection & config filename strings.
github.com/rapid7/Rapid7-Lab…
Mike Cohen retweeted
Thought I would make some posts for #100daysofyara. Not sure how often i'll post but good chance to test some triage workflow and build some pratical Velociraptor rules for automation :)
In the example below I grabbed a NanoCore sample from MalwareBazaar - bazaar.abuse.ch/sample/6ff9d… if folks want to test.
Good rules dont need to be complex rules with good targeting. This sample injects an unbacked pe file with rwx permissions.
In this example I have targeted unbacked xrw permisssions. I have also included -rw permissions to cover .NET reflection as NanoCore is a .net binary.
Due to targeting, this query should also be quite performant.
github.com/mgreen27/DetectRa…
Mike Cohen retweeted
We're incredibly thankful to our wonderful community of contributors, testers and enthusiasts! Without you, Velociraptor wouldn't be what it is.
To all of you, your family and friends, HAPPY THANKSGIVING!
Mike Cohen retweeted
Want a sneak peek at the upcoming Velociraptor v0.7.1?
With awesome new capabilities like built in Sigma integration and enhanced notebook functionality, you will want to download the release candidate today and test it out. Be sure to log any bugs or issues through GitHub.
docs.velociraptor.app/blog/2…
Mike Cohen retweeted
Sharing out my workshop from DEATHcon.
mgreen27.notion.site/mgreen2…
Fun to showcase some of the similar workflows I do day to day.
@Velocidex #dfir
DEATHcon was put on by @rpargman @olafhartong @th3cyF0x its a really unique event - thank you!
Mike Cohen retweeted
Pushed out a Velociraptor artifact to scope some of the items in the SysAid post exploitation activity.
docs.velociraptor.app/exchan…
@velocidex
⚠️ On November 8, SysAid disclosed CVE-2023-47426, a zero-day path traversal vulnerability affecting on-premise SysAid servers.
Microsoft warns that exploitation is likely to result in ransomware deployment and/or data exfiltration. Read more in our blog: bit.ly/3QA4gFI
Mike Cohen retweeted
If you missed VeloCon23, all talks are available on YouTube and the website.
docs.velociraptor.app/presen…
#dfir #cybersecurity #rapid7
Mike Cohen retweeted
While there are many great articles that discuss logs to be sent to a SIEM, many don't mention filtering on the endpoint during investigations. This is an area in which @velocidex excels. 🦖🚀 #FastForensicsBeforeFullSendIt #LogManagementMusts #SaveTheSIEM #SplunkCostBoss
Mike Cohen retweeted
If you like us here, you'll LOVE us on Discord. Come join the smartest and most lively #DFIR community on the planet.
discord.com/invite/YAU3vRE
