Rule History

SID: 2021947 • Source: et/open

Versions (5)

Version DetailsCurrent

Rev: 3 • Oct 13, 2015, 12:00 PM

Message:

ET MALWARE Win32/Kelihos.F Checkin

Rule:

alert tcp $HOME_NET any -> $EXTERNAL_NET 80 (msg:"ET MALWARE Win32/Kelihos.F Checkin"; flow:to_server,established; dsize:164; content:"|6c 55 55 45 03 10 48 40|"; offset:4; depth:8; reference:md5,dc226166dfbe28eee2576ea5141bc19d; reference:md5,dadee91e0b82fc91a25a66b61bb2f2dc; classtype:command-and-control; sid:2021947; rev:3; metadata:created_at 2015_10_13, malware_family Win32_Kelihos_F, confidence Medium, signature_severity Major, updated_at 2019_07_26;)

Created:

Oct 13, 2015, 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-malware.rules