""ET TROJAN [PTsecurity] JS.Trojan-Downloader.Nemucod.yo HTTP POST (:Exec:)""

SID: 2024701

Revision: 3

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_09_12, deployment Internet, malware_family Nemucod, performance_impact Moderate, signature_severity Major, updated_at 2022_04_18

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established, to_server

Contents:

  • Value: !"Referer|3a|"

  • Value: "|3a 3a 3a|Exec|3a 3a 3a|http" Depth: 40

  • Value: "|3a|//"

  • Value: ".exe|3a 3a|"

Within: 100

PCRE:

Special Options:

  • http_header

  • http_client_body

  • fast_pattern

  • http_client_body

  • http_client_body

source