""ET TROJAN W32/Echmark/MarkiRAT CnC Response""

SID: 2033402

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 2020_07_06, deployment Perimeter, deployment SSLDecrypt, signature_severity Major, updated_at 2020_07_06

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "|0d 0a 0d 0a|ci="

  • Value: "POST"

  • Value: "/rite.php"

  • Value: "User-Agent|3a 20|WinHTTP|0d 0a|"

  • Value: "ci=" Depth: 3

  • Value: "&r="

Within:

PCRE:

Special Options:

  • fast_pattern

  • http_method

  • http_uri

  • http_header

  • http_client_body

  • http_client_body

source