""ET TROJAN VenusLocker Activity""

SID: 2032968

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_05_17, deployment Perimeter, malware_family VenusLocker, performance_impact Low, signature_severity Major, updated_at 2021_05_17

Reference:

  • md5

  • 9aa3cc9d7c641ea22cfa3e5233e13c94

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "/dumbdumb?" Depth: 10

  • Value: "Accept|3a 20|text/*|0d 0a|"

  • Value: !"Referer|3a 20|"

  • Value: !"Connect|3a 20|"

Within:

PCRE: "/\=(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})/U"

Special Options:

  • fast_pattern

  • http_uri

  • http_header

  • http_header

  • http_header

source