Rule History

alert tcp $EXTERNAL_NET any -> $HOME_NET 143 (msg:"GPL IMAP unsubscribe literal overflow attempt"; flow:established,to_server; content:"UNSUBSCRIBE"; nocase; pcre:"/\sUNSUBSCRIBE\s[^\n]*?\s\{/smi"; byte_test:5,>,256,0,string,dec,relative; reference:bugtraq,11775; classtype:misc-attack; sid:2103075; rev:2; metadata:created_at 2010_09_23, confidence Medium, signature_severity Minor, updated_at 2019_07_26;)