Rule History

SID: 2017763 • Source: et/open

Versions (5)

Version DetailsCurrent

Rev: 2 • Nov 25, 2013, 12:00 PM

Message:

ET HUNTING SUSPICIOUS Java Request With Uncompressed JAR/Class B64 encoded class

Rule:

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HUNTING SUSPICIOUS Java Request With Uncompressed JAR/Class B64 encoded class"; flow:established,from_server; flowbits:isset,et.JavaArchiveOrClass; file_data; content:"yv66v"; classtype:bad-unknown; sid:2017763; rev:2; metadata:created_at 2013_11_25, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)

Created:

Nov 25, 2013, 12:00 PM

Updated:

Jul 26, 2019, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Nov 13, 2025, 9:34 PM

Filename:

rules/emerging-hunting.rules