Rule History

SID: 2012968 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 3 • Jun 9, 2011, 12:00 PM

Message:

ET SHELLCODE Possible %u0d0d%u0d0d UTF-16 Heap Spray Attempt

Rule:

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SHELLCODE Possible %u0d0d%u0d0d UTF-16 Heap Spray Attempt"; flow:established,to_client; content:"%u0d0d%u0d0d"; nocase; reference:url,www.darkreading.com/security/vulnerabilities/221901428/index.html; classtype:shellcode-detect; sid:2012968; rev:3; metadata:created_at 2011_06_09, confidence Medium, signature_severity Major, updated_at 2019_07_26;)

Created:

Jun 9, 2011, 12:00 PM

Updated:

Jul 26, 2019, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

May 30, 2025, 12:04 AM

Filename:

rules/emerging-shellcode.rules