""ET MALWARE pdfspeedup Keep-Alive""

SID: 2038628

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_08_25, deployment Perimeter, performance_impact Low, confidence High, signature_severity Minor, updated_at 2022_08_25

Reference:

  • md5

  • cbb857a25e7dde72364684d2b90fb1ac

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: "/pdf-service/v1/report"

  • Value: "|5b 7b 22|action|22 3a 22|" Depth: 12

  • Value: "|22|day|22 3a 22|"

  • Value: "|22|device_id|22 3a 22|"

  • Value: "|22|location|22 3a 22|"

  • Value: "|22|os|22 3a|"

  • Value: "|22|qd|22 3a 22|"

  • Value: "|22|random|22 3a|"

  • Value: "|22|status|22 3a 22|"

  • Value: "|22|version|22 3a 22|"

  • Value: !"User-Agent|3a 20|"

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/^[a-f0-9]{32}\"/R"

Special Options:

  • http_method

  • http_uri

  • http_client_body

  • fast_pattern

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • http_header

  • http_header

source