Versions (3)
Version DetailsCurrent
Rev: 2 • Jul 27, 2011, 12:00 PMET SHELLCODE Unicode UTF-8 Heap Spray Attempt
alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SHELLCODE Unicode UTF-8 Heap Spray Attempt"; flow:established,to_client; content:"u0"; nocase; content:"u0"; nocase; distance:1; within:2; content:"u0"; nocase; distance:1; within:2; content:"u0"; nocase; distance:1; within:2; pcre:"/u0[a-d]u0[a-d]u0[a-d]u0[a-d]/smi"; classtype:shellcode-detect; sid:2013319; rev:2; metadata:created_at 2011_07_27, confidence High, signature_severity Major, updated_at 2019_07_26;)
Jul 27, 2011, 12:00 PM
Jul 26, 2019, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-shellcode.rules