""ET TROJAN Arbitrium-RAT Observed User-Agent (JustKidding)""

SID: 2031529

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_01_19, deployment Perimeter, malware_family Arbitrium_RAT, performance_impact Low, signature_severity Major, updated_at 2021_01_19

Reference:

• Link

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

• Value: "User-Agent|3a 20|JustKidding|0d 0a|"

Within:

PCRE:

Special Options:

• http_header

source