""ET TROJAN Antinum HTTP Checkin""

SID: 2043013

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_12_27, deployment Perimeter, deployment SSLDecrypt, malware_family Antinum, performance_impact Low, signature_severity Major, updated_at 2022_12_27

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: "/send"

  • Value: "User-Agent|3a 20|Go-http-client/1.1|0d 0a|"

  • Value: "|22|clientid|22|"

  • Value: "|22|packetid|22|"

  • Value: "|22|packetType|22|"

  • Value: "downstreamId"

Within:

PCRE: "/^Host\x3a\x20[^\r\n]+\r\nUser-Agent\x3a\x20Go-http-client\/1.1\r\nContent-Length\x3a\x20[^\r\n]+\r\nX-Session-Token\x3a\x20[^\r\n]+\r\nAccept-Encoding\x3a\x20[^\r\n]+[\r\n]+$/H"

Special Options:

  • http_method

  • http_uri

  • http_header

  • http_client_body

  • http_client_body

  • http_client_body

  • fast_pattern

  • http_client_body

source