Rule History

alert http $HOME_NET any -> any any (msg:"ET EXPLOIT Apache log4j RCE Attempt (tcp ldap) (Outbound) (CVE-2021-44228)"; flow:established,to_server; content:"|24 7b|jndi|3a|ldap|3a 2f 2f|"; nocase; fast_pattern; reference:url,lunasec.io/docs/blog/log4j-zero-day; reference:cve,2021-44228; classtype:attempted-admin; sid:2034759; rev:2; metadata:attack_target Server, created_at 2021_12_17, cve CVE_2021_44228, deployment Perimeter, confidence High, signature_severity Major, tag Exploit, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_05_03;)