""ET TROJAN STRRAT Initial HTTP Activity""

SID: 2030359

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_06_19, deployment Perimeter, malware_family STRRAT, signature_severity Major, updated_at 2020_06_19

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: ".php?lid="

  • Value: "-"

  • Value: "-"

  • Value: "User-Agent|3a 20|Java/" Depth: 17

  • Value: !"Referer|3a|"

  • Value: !"Cache-"

  • Value: !"Pragma"

Within: 1

PCRE: "/.php\?lid=[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{4}$/Us"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_uri

  • http_uri

  • http_header

  • http_header

  • http_header

  • http_header

source