""ET TROJAN Win32/Chinad Checkin""

SID: 2021262

Revision: 1

Class Type: trojan-activity

Metadata: created_at 2015_06_13, updated_at 2015_06_13

Reference:

  • md5

  • 5a454c795eccf94bf6213fcc4ee65e6d

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: to_server,established

Contents:

  • Value: "GET"

  • Value: "/api/?a=" Depth: 8

Within:

PCRE: "/^Host\x3a\x20(?:\d{1,3}.){3}\d{1,3}\r\n(?:\r\n)?$/Hi"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

source