""ET TROJAN JS/Nemucod requesting EXE payload 2016-02-06""

SID: 2023875

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 2017_02_06, deployment Perimeter, malware_family Nemucod, performance_impact Significant, signature_severity Major, updated_at 2024_04_22

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: ".vbn"

  • Value: "User-Agent|3a 20|Mozilla/4.0 (compatible|3b| MSIE 7.0|3b|"

  • Value: !"Referer|3a|"

  • Value: !"Cookie|3a|"

Within:

PCRE: "/.vbn$/Ui"

Special Options:

  • http_uri

  • nocase

  • http_header

source