""ET TROJAN LNK/Konni APT CnC Checkin (GET)""
SID: 2047883
Revision: 1
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_09_01, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Critical, tag Konni, tag c2, updated_at 2023_09_01, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol
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: ".php?vw="
-
Value: "&nv="
-
Value: "WindowsPowerShell/"
Within: 4
PCRE: "/^User-Agent\x3a\x20[^\r\n]+WindowsPowerShell\///Hmi"
Special Options:
-
http_method
-
http_uri
-
fast_pattern
-
http_uri
-
http_header