L0g0ff

log4j RCE Exploitation Detection

You can use these commands and rules to search for exploitation attempts against log4j RCE vulnerability CVE-2021-44228

Grep / Zgrep

This command searches for exploitation attempts in uncompressed files in folder /var/log and all sub folders

sudo egrep -I -i -r '\$(\{|%7B)jndi:(ldap[s]?|rmi|dns|nis|iiop|corba|nds|http):/[^\n]+' /var/log

L0g0ff

Guide to Using DDRescue to Recover Data

Start command:

ddrescue -d /dev/sda output.img output.mapfile

NOTE: If direct disc access is not available in your system, try raw devices.