""ET INFO Observed Anonymous File Sharing Service in SSL Cert (fromsmash .co)""

SID: 2036871

Revision: 1

Class Type: bad-unknown

Metadata: attack_target Client_Endpoint, created_at 2022_06_06, deployment Perimeter, signature_severity Informational, tag SSL_Malicious_Cert, updated_at 2022_06_06

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: 443

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "|16|"

  • Value: "|0b|"

  • Value: "|06 03 55 04 03|"

  • Value: "|0c|fromsmash.co"

Within: 13

PCRE:

Special Options:

  • fast_pattern

source