""ET MOBILE_MALWARE XX-Net VPN Client CnC Checkin""

SID: 2038903

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Android, attack_target Mobile_Client, created_at 2022_09_19, deployment Perimeter, signature_severity Major, updated_at 2022_09_19

Reference:

  • md5

  • 5faa868d9bbb1f253f9b968ad620604b

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: "/imsi.html?phone=" Depth: 17

Within:

PCRE: "/^User-Agent\x3a\x20[^\r\n]+Android/Hmi"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

source