""ET ATTACK_RESPONSE Possible arp command output via HTTP (Windows Style)""

SID: 2049392

Revision: 1

Class Type: successful-recon-limited

Metadata: attack_target Server, created_at 2023_11_29, deployment Perimeter, performance_impact Low, confidence Low, signature_severity Major, tag WebShell, updated_at 2023_11_29, mitre_tactic_id TA0003, mitre_tactic_name Persistence, mitre_technique_id T1505, mitre_technique_name Server_Software_Component

Reference:

Protocol: tcp

Source Network: [$HOME_NET,$HTTP_SERVERS]

Source Port: $HTTP_PORTS

Destination Network: $EXTERNAL_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: !"<html"

  • Value: "Interface|3a 20|"

  • Value: "|20 2d 2d 2d 20|0x"

  • Value: "|0d 0a|"

  • Value: "Internet|20|Address"

  • Value: "Physical|20|Address"

Within: 100

PCRE:

Special Options:

  • file_data

  • fast_pattern

source