""ET TROJAN Emotet CnC Beacon""

SID: 2035075

Revision: 3

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2015_06_11, deployment Perimeter, performance_impact Significant, signature_severity Major, tag c2, updated_at 2024_04_04, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel

Reference:

  • md5

  • 518d189f8922280c81ab123604076dfd

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: 8080

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: ".php"

  • Value: !"User-Agent|3a|"

  • Value: !"Accept"

  • Value: !"Referer|3a|"

  • Value: ".php|20|HTTP/1.1|0d 0a|Host|3a|"

  • Value: !".360.cn"

Within:

PCRE: "/^Host\x3a\x20[^\r\n]+\r\n(?:Cache-Control|Pragma)\x3a\x20no-cache\r\n(?:\r\n)?$/H"

Special Options:

  • http_method

  • http_uri

  • http_header

  • http_header

  • http_header

  • http_header

source