""ET TROJAN Malicious Second Stage Payload Inbound 2021-02-19""

SID: 2033044

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 2021_02_19, deployment Perimeter, former_category MALWARE, signature_severity Major, updated_at 2022_03_24

Reference:

  • md5

  • 2184931b6412cc900837890a6c5685f6

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: "/bestof/"

  • Value: ".exe"

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

  • Value: !"Referer|3a 20|"

Within: 20

PCRE: "/.exe$/U"

Special Options:

  • http_method

  • http_uri

  • http_uri

  • fast_pattern

  • http_header

  • http_header

source