Rule History

SID: 2003465 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 5 • Jul 30, 2010, 12:00 PM

Message:

ET ATTACK_RESPONSE Unusual FTP Server Banner (freeFTPd)

Rule:

alert tcp any 21 -> $HOME_NET any (msg:"ET ATTACK_RESPONSE Unusual FTP Server Banner (freeFTPd)"; flow:established,from_server; content:"220 "; content:"--freeFTPd "; depth:40; nocase; reference:url,www.freeftp.com; classtype:trojan-activity; sid:2003465; rev:5; metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)

Created:

Jul 30, 2010, 12:00 PM

Updated:

Jul 26, 2019, 12:00 PM

DB Created:

Jul 30, 2010, 12:00 PM

DB Updated:

Oct 27, 2025, 10:34 PM

Filename:

rules/emerging-attack_response.rules