""ET TROJAN Cobalt Strike Activity""
SID: 2032330
Revision: 2
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2021_03_25, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2021_03_25
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
-
Value: "GET"
-
Value: ".js|20|HTTP/1.1|0d 0a|Cookie|3a 20|SSID="
Within:
PCRE: "/^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})\r\n/R"
Special Options:
-
http_method
-
fast_pattern