""ET USER_AGENTS VPNFilter Related UA (curl53)""

SID: 2026428

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Linux, attack_target Networking_Equipment, created_at 2018_10_01, deployment Perimeter, malware_family VPNFilter, signature_severity Major, updated_at 2018_10_01

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: "-Agent|3a 20|curl53|0d 0a|"

Within:

PCRE:

Special Options:

• http_header

• fast_pattern

source