""ET TROJAN SysJoker User-Agent Observed""

SID: 2049303

Revision: 1

Class Type: trojan-activity

Metadata: created_at 2023_11_27, updated_at 2023_11_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: "User-Agent|3a 20|Mozilla|2f|5|2e|0|20 28|Windows|20|NT|20|10|2e|0|3b 20|WOW64|29 20|AppleWebKit|2f|537|2e|36|20 28|KHTML|2c 20|like|20|Gecko|29 20|Chrome|2f|92|2e|0|2e|4515|2e|159|20|Safari|2f|537|0d 0a|"

Within:

PCRE:

Special Options:

  • http_header

source