""ET TROJAN Possible NGLite Backdoor C2 Traffic (NKN)""

SID: 2034438

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 2021_11_11, deployment Perimeter, malware_family NGLite, signature_severity Major, tag c2, updated_at 2021_11_11, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel

Reference:

  • md5

  • aedebba95462e9db10b834551e3abc03

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: 30003

Flow: established,to_server

Contents:

  • Value: "User-Agent|3a 20|Go-http-client/"

  • Value: "Host|3a 20|seed.nkn.org|3a|"

  • Value: "|22|address|22 3a|"

  • Value: "|2e|monitor_03|2e|"

  • Value: "POST|20|/|20|HTTP/1.1"

Within: 20

PCRE:

Special Options:

  • http_header

  • fast_pattern

  • http_header

  • http_client_body

  • http_client_body

source