""ET TROJAN Trojan.BlackRev Botnet Monitor Request CnC Beacon""

SID: 2017717

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2013_11_15, deployment Perimeter, signature_severity Major, tag c2, updated_at 2013_11_15, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel

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: "/monitor.php?resp=ID|3a|"

  • Value: "Target|3a|"

  • Value: "Message|3a|"

  • Value: !"Referer|3a 20|"

  • Value: "User-Agent|3a 20|Mozilla/4.0 (SEObot)|0d 0a|"

Within:

PCRE: "/\/monitor.php\?resp=ID\x3a[A-Za-z]{15}/U"

Special Options:

  • http_method

  • http_uri

  • http_uri

  • http_uri

  • http_header

  • http_header

source