""ET TROJAN Cobalt Strike Activity (GET)""
SID: 2034941
Revision: 2
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2022_01_19, deployment Perimeter, deployment SSLDecrypt, malware_family Cobalt_Strike, signature_severity Major, updated_at 2022_01_20, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1001, mitre_technique_name Data_Obfuscation
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
-
Value: "nyt-a=" Depth: 6
-
Value: "GET /api/market HTTP/1.1"
Within:
PCRE: "/^nyt-a=(?:[A-Za-z0-9-_]){176}$/C"
Special Options:
-
http_cookie
-
fast_pattern