log4shell-tool
signature-base
| log4shell-tool | signature-base | |
|---|---|---|
| 4 | 12 | |
| 15 | 2,337 | |
| - | - | |
| 0.0 | 9.1 | |
| 10 months ago | 6 days ago | |
| YARA | ||
| Apache License 2.0 | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
log4shell-tool
- Lacerte Tax - Log4j
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Evidence of a log4j attack found - Now what?
Start with confirming that an incident took place. My five-minute understanding of Datto's ComStore log4shell tool is that it does two things:
- Log4j PDQ scan profile
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Automating with PowerShell: Detecting Log4j
For an in-depth explanation of what variables are required, please check the 'Usage' section of the readme viewable at https://github.com/datto/log4shell-tool. This explains the three variables that need to be set and what values to set them to.
signature-base
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Xzbot: Notes, honeypot, and exploit demo for the xz backdoor (CVE-2024-3094)
> It doesn't matter.
To understand the exact behavior and extend of the backdoor, this does matter. An end to end proof of how it works is exactly what was needed.
> A way to check if servers are vulnerable is probably by querying the package manager
Yes, this has been know since the initial report + later discovering what exact strings are present for the payload.
https://github.com/Neo23x0/signature-base/blob/master/yara/b...
> Not very sophisticated, but it'll work.
Unfortunately, we live in a world with closed-servers and appliances - being able as a customer or pen tester rule out certain class of security issues without having the source/insights available is usually desirable.
- Exploit Outlook CVE-2023-23397 Yara - to detect .msg files exploiting CVE-2023-23397 in Microsoft Outlook
- OneNote Yara rule
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New Exchange Zero Day rumours [29th September]
* Run the following YARA rules over your logs and aspx files in INSTALL_DIRECTORY/Microsoft\Exchange Server\V15\FrontEnd\HttpProxy\owa\ https://github.com/Neo23x0/signature-base/blob/master/yara/expl_proxyshell.yar
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Nvidia Breach
If you have a Yara detection platform, Florian Roth’s rules should detect executables signed with this. https://github.com/Neo23x0/signature-base/blob/master/yara/gen_nvidia_leaked_cert.yar.
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Evidence of a log4j attack found - Now what?
Uses these YARA rules to read JAR, LOG, and TXT files on the system, throwing warnings if any log4shell-looking payloads are found based on those various rules.
- Yara rule to detect ProxyToken exploitation
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APT29 / NOBELIUM VirusTotal retro hunt results using 12 newly release Yara rules
Rules https://github.com/Neo23x0/signature-base/blob/master/yara/apt_apt29_nobelium_may21.yar
- What are the best FOSS YARA rules you would recommend to deploy?
What are some alternatives?
Get-log4j-Windows.ps1 - Identifying all log4j components across all windows servers, entire domain, can be multi domain. CVE-2021-44228
malware-ioc - Indicators of Compromises (IOC) of our various investigations