""ET TROJAN NSO Group Pegasus Related Data Exfil (POST) M2""

SID: 2033777

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_08_24, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2021_08_24

Reference:

  • md5

  • 0a1c6d9cd67172995d22fa54946662f0

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: ".php?di="

  • Value: "Content-Type|3a 20|multipart/form-data|3b 20|boundary=---------------------"

Within:

PCRE: "/^Content-Type\x3a\x20[^\r\n]+\r\nHost\x3a\x20[^\r\n]+\r\nContent-Length\x3a\x20[^\r\n]+\r\nExpect\x3a\x20[^\r\n]+[\r\n]+$/H"

Special Options:

  • http_method

  • http_uri

  • http_header

source