""ET MALWARE pdfspeedup Initial CnC Checkin""

SID: 2038627

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: "GET"

  • Value: "/pdf-service/v1/action?" Depth: 23

  • Value: "os="

  • Value: "device_id="

  • Value: "version="

  • Value: "qd="

  • Value: "day="

  • Value: "t="

  • Value: "product="

  • Value: "machine_name="

Within:

PCRE: "/Host\x3a\x20[^\r\n]+\r\nConnection\x3a\x20[^\r\n]+[\r\n]+$/H"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_uri

  • http_uri

  • http_uri

  • http_uri

  • http_uri

  • http_uri

  • http_uri

  • http_uri

source