""ET TROJAN Trojan.Win32.Qadars Checkin""

SID: 2023588

Revision: 4

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2013_10_10, deployment Perimeter, malware_family Qadars, performance_impact Low, signature_severity Major, updated_at 2016_12_07

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: to_server,established

Contents:

  • Value: "POST"

  • Value: "AAAA" Depth: 4 Offset: 10

  • Value: "=" Depth: 1 Offset: 7

  • Value: !"Referer|3A|"

  • Value: !"Connection|3A|"

  • Value: !"Accept"

Within:

PCRE: "/^[a-zA-Z]{7}=(?:[A-Za-z0-9+/]|%2[FB]){2}AAAA[a-z]A[^\s=]+=?=?$/P"

Special Options:

  • http_method

  • nocase

  • fast_pattern

  • http_client_body

  • http_client_body

  • http_header

  • http_header

  • http_header

source