""ET TROJAN Win32/Necurs Common POST Header Structure""

SID: 2021995

Revision: 4

Class Type: trojan-activity

Metadata: created_at 2015_10_23, performance_impact Moderate, updated_at 2024_04_08

Reference:

  • md5

  • d11a453d4de6e6fd991967d67947c0d7

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: ".php"

  • Value: !"NSIS|5f|Inetc |28|Mozilla|29|"

  • Value: !"Accept|3a|"

  • Value: !"Referer|3a|"

Within:

PCRE: "/^[\x20-\x7e\r\n]{0,20}[^\x20-\x7e\r\n]/P"

Special Options:

  • http_method

  • http_uri

  • http_header

  • http_header

  • http_header

source