""ET INFO HTTP GET Request XOR Key 01""

SID: 2037965

Revision: 2

Class Type: misc-activity

Metadata: attack_target Client_and_Server, created_at 2022_08_09, deployment Perimeter, performance_impact Low, signature_severity Informational, updated_at 2022_08_10, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1001, mitre_technique_name Data_Obfuscation

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: any

Flow: established,to_server

Contents:

  • Value: "|46 44 55 21 2e|" Depth: 5

  • Value: "|21 49 55 55 51 2e|"

Within:

PCRE:

Special Options:

  • fast_pattern

source