Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Observed Suspicious User-Agent (JWrapperDownloader)"; flow:established,to_server; http.user_agent; bsize:18; content:"JWrapperDownloader"; fast_pattern; http.header_names; content:!"|0d 0a|Referer|0d 0a|"; reference:md5,f50cd7bfe5c258c62f74a695e12f4760; classtype:bad-unknown; sid:2049862; rev:2; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2020_11_16, deployment Perimeter, confidence High, signature_severity Informational, updated_at 2024_03_11, former_sid 2845478;)