Cve 2021 44228

Detecting Log4j exploits via Zeek when Java downloads Java

Detecting Log4j exploits via Zeek when Java downloads Java

We have published an initial blog on the Log4j exploit and a followup blog with a second detection method for detecting the first stage of exploits occurring over LDAP.  Today, we will discuss a third detection method, this one focused on the... Read more »

Detecting Log4j via Zeek & LDAP traffic

We recently discussed some methods for detecting the Log4j exploit, and we’ve now developed another method that everyone running Zeek® or a Corelight sensor can use. Our new approach is based on the rarity of legitimate downloads of Java via LDAP.... Read more »

Simplifying detection of Log4Shell

Simplifying detection of Log4Shell

Security workers across the world have been busy since last Friday dealing with CVE-2021-44228, the log4j 0-day known as Log4Shell, that is already being heavily exploited across the Internet. Given the huge number of systems that embed the... Read more »

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