Rule History

SID: 2012258 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 4 • Feb 3, 2011, 12:00 PM

Message:

ET SHELLCODE Common %u0c0c%u0c0c UTF-16 Heap Spray String

Rule:

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SHELLCODE Common %u0c0c%u0c0c UTF-16 Heap Spray String"; flow:established,to_client; content:"%u0c0c%u0c0c"; nocase; reference:url,www.darkreading.com/security/vulnerabilities/221901428/index.html; classtype:shellcode-detect; sid:2012258; rev:4; metadata:created_at 2011_02_03, confidence High, signature_severity Major, updated_at 2019_09_27;)

Created:

Feb 3, 2011, 12:00 PM

Updated:

Sep 27, 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