Rule History

SID: 2032784 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 2 • Apr 20, 2021, 12:00 PM

Message:

ET MALWARE Cobalt Strike Stager Time Check M1

Rule:

alert tcp $HOME_NET any -> $EXTERNAL_NET 80 (msg:"ET MALWARE Cobalt Strike Stager Time Check M1"; flow:established,to_server; dsize:11; content:"GET|20|driver|0a|"; fast_pattern; reference:md5,e566c853fe8555fc255bd643f96ba574; classtype:trojan-activity; sid:2032784; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_04_20, deployment Perimeter, malware_family Cobalt_Strike, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_04_20;)

Created:

Apr 20, 2021, 12:00 PM

Updated:

Apr 20, 2021, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Sep 12, 2025, 9:34 PM

Filename:

rules/emerging-malware.rules