Rule History

SID: 2020569 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 1 • Feb 25, 2015, 12:00 PM

Message:

ET MALWARE Unknown Trojan Downloading PE via MSSQL Connection to Non-Standard Port

Rule:

alert tcp $EXTERNAL_NET any -> $HOME_NET !1433 (msg:"ET MALWARE Unknown Trojan Downloading PE via MSSQL Connection to Non-Standard Port"; flow:from_server,established; flowbits:isset,ET.MSSQL; content:"MZ"; byte_jump:4,58,relative,little; content:"PE|00 00|"; distance:-64; within:4; reference:md5,754b48c57a00b7c9f0e0640166ac7bb5; classtype:trojan-activity; sid:2020569; rev:1; metadata:created_at 2015_02_25, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)

Created:

Feb 25, 2015, 12:00 PM

Updated:

Jul 26, 2019, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Dec 4, 2025, 10:34 PM

Filename:

rules/emerging-malware.rules