""ET INFO SAFIB Assistant Remote Administration Tool CnC Checkin""

SID: 2038600

Revision: 1

Class Type: misc-activity

Metadata: attack_target Client_Endpoint, created_at 2022_08_23, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, signature_severity Informational, updated_at 2022_08_23

Reference:

  • md5

  • 7a40cf7374eb22988a32f47a433a76fe

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: "/api/exec"

  • Value: "|31 00 00|"

  • Value: "|01 00 00|"

Within:

PCRE: "/Host\x3a\x20[^\r\n]+\r\nContent-Length\x3a\x20[^\r\n]+[\r\n]+$/H"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_client_body

  • http_client_body

source