""ET TROJAN BotLoader CnC Checkin""

SID: 2045782

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_05_19, deployment Perimeter, malware_family BotLoader, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_05_19

Reference:

  • md5

  • 4fd927530935327e0405ea5ddabc18ef

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: "/api/support"

  • Value: "|7b 22|" Depth: 2

  • Value: "|22 3a 22|"

  • Value: "Content-Type|3a 20|application/json"

  • Value: !"User-Agent|3a 20|"

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/[^\x7b\x22[0-9]{9}/P"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_client_body

  • http_client_body

  • http_header

  • http_header

  • http_header

source