Markus Geiger blurayne

## log4j_rce_detection.md

      
        
          
            
              
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                blurayne
                / log4j_rce_detection.md
            
            
              Created
              January 31, 2023 21:43
                — forked from Neo23x0/log4j_rce_detection.md
            
              
                Log4j RCE CVE-2021-44228 Exploitation Detection
              
          
        
      
        
  
      
    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