""ET POLICY SUSPICIOUS OVH Shared Host SSL Certificate (Observed In Use by Some Trojans)""

SID: 2018364

Revision: 2

Class Type: bad-unknown

Metadata: attack_target Client_Endpoint, created_at 2014_04_05, deployment Perimeter, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2014_04_05

Reference:

  • md5

  • 20b1c30ef1f5dae656529b277e5b73fb

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: 443

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "|55 04 03|"

  • Value: "ssl"

  • Value: ".ovh.net"

Within: 8

PCRE: "/^\d{1,2}/R"

Special Options:

source