Rule History

SID: 2016437 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 4 • Feb 20, 2013, 12:00 PM

Message:

ET MALWARE WEBC2-TABLE Checkin 3 - APT1 Related

Rule:

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE WEBC2-TABLE Checkin 3 - APT1 Related"; flow:established,to_server; flowbits:set,ET.webc2; http.header; content:"|3a|"; distance:1; within:1; content:"|3a|"; distance:2; within:1; content:"+"; distance:2; within:1; http.user_agent; content:"2"; startswith; reference:md5,7a7a46e8fbc25a624d58e897dee04ffa; reference:md5,110160e9d6e1483192653d4bfdcbb609; reference:url,www.mandiant.com/apt1; classtype:targeted-activity; sid:2016437; rev:4; metadata:created_at 2013_02_20, signature_severity Major, updated_at 2020_10_14;)

Created:

Feb 20, 2013, 12:00 PM

Updated:

Oct 14, 2020, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

May 30, 2025, 12:04 AM

Filename:

rules/emerging-malware.rules