""ET POLICY Observed SSL Cert (Pastebin-style Service nrecom)""

SID: 2031000

Revision: 2

Class Type: policy-violation

Metadata: created_at 2020_10_12, signature_severity Informational, updated_at 2020_10_12

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: 443

Destination Network: $HOME_NET

Destination Port: any

Flow: from_server,established

Contents:

  • Value: "|16|"

  • Value: "|0b|"

  • Value: "|55 04 03|"

  • Value: "|06|ngn.gg"

  • Value: "|55 04 06|"

  • Value: "|02|US"

  • Value: "|55 04 0a|"

  • Value: "|0d|Let's Encrypt"

  • Value: "|55 04 03|"

  • Value: "|1a|Let's Encrypt Authority X3"

Within: 27

PCRE:

Special Options:

  • fast_pattern

source