""ET CURRENT_EVENTS Nemucod JS Downloader Aug 01 2017""

SID: 2024508

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_08_01, deployment Perimeter, malware_family Nemucod, performance_impact Moderate, signature_severity Major, updated_at 2024_04_08

Reference:

  • md5

  • cb558b04216e0e7a9c936945ebee6611

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "Accept|3a 20 2a 2f 2a 0d 0a|Accept-Language|3a|" Depth: 29

  • Value: "Mozilla/4.0 (compatible|3b 20|MSIE 6.0|3b 20|Windows NT 5.0)"

  • Value: !"Referer|3a|"

  • Value: !"Cookie|3a|"

Within:

PCRE: "/\/[A-Za-z0-9]{5,9}\?+[A-Za-z0-9]{6,12}=[A-Za-z0-9]{6,12}$/U"

Special Options:

  • http_header

  • http_header

  • http_header

source